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Control of Emissions From Nonroad Spark-Ignition Engines and Equipment

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PDF Version (50 pp, 836K, About PDF)

[Federal Register: October 8, 2008 (Volume 73, Number 196)]
[Rules and Regulations]
[Page 59233-59282]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr08oc08-21]

Control of Emissions From Nonroad Spark-Ignition Engines and Equipment

[[Continued from page 59232]]
[[Page 59233]]

    (d) Store trouble codes in computer memory. Record and store in
computer memory any diagnostic trouble codes showing a malfunction that
should illuminate the MIL. The stored codes must identify the
malfunctioning system or component as uniquely as possible. Make these
codes available through the data link connector as described in
paragraph (g) of this section. You may store codes for conditions that
do not turn on the MIL. The system must store a separate code to show
when the diagnostic system is disabled.
* * * * *
    (g) Follow standard references for formats, codes, and connections.
Follow conventions defined in 40 CFR 1045.110 or in the following
documents (incorporated by reference in Sec.  1048.810) or ask us to
approve using updated versions of (or variations from) these documents:
* * * * *

• 108. Section 1048.115 is amended by revising the section heading,
introductory text, and paragraph (e) to read as follows:

Sec.  1048.115  What other requirements apply?

    Engines that are required to meet the emission standards of this
part must meet the following requirements:
* * * * *
    (e) Adjustable parameters. Engines that have adjustable parameters
must meet all the requirements of this part for any adjustment in the
physically adjustable range. An operating parameter is not considered
adjustable if you permanently seal it or if it is not normally
accessible using ordinary tools. We may require that you set adjustable
parameters to any specification within the adjustable range during any
testing, including certification testing, production-line testing, or
in-use testing.
* * * * *

• 109. Section 1048.120 is amended by revising paragraph (c) to read as
follows:

Sec.  1048.120  What emission-related warranty requirements apply to me?

* * * * *
    (c) Components covered. The emission-related warranty covers all
your components whose failure would increase an engine's emissions of
any regulated pollutant, including components listed in 40 CFR part
1068, Appendix I, and components from any other system you develop to
control emissions. The emission-related warranty covers these
components even if another company produces the component for you. Your
emission-related warranty does not cover components whose failure would
not increase an engine's emissions of any regulated pollutant.
* * * * *

• 110. Section 1048.125 is amended by revising paragraphs (a)(1)(iii) and
(d) to read as follows:

Sec.  1048.125  What maintenance instructions must I give to buyers?

* * * * *
    (a) * * *
    (1) * * *
    (iii) You provide the maintenance free of charge and clearly say so
in your maintenance instructions.
* * * * *
    (d) Noncritical emission-related maintenance. Subject to the
provisions of this paragraph (d), you may schedule any amount of
emission-related inspection or maintenance that is not covered by
paragraph (a) of this section (i.e., maintenance that is neither
explicitly identified as critical emission-related maintenance, nor
that we approve as critical emission-related maintenance). Noncritical
emission-related maintenance generally includes changing spark plugs,
re-seating valves, or any other emission-related maintenance on the
components we specify in 40 CFR part 1068, Appendix I that is not
covered in paragraph (a) of this section. You must state in the owners
manual that these steps are not necessary to keep the emission-related
warranty valid. If operators fail to do this maintenance, this does not
allow you to disqualify those engines from in-use testing or deny a
warranty claim. Do not take these inspection or maintenance steps
during service accumulation on your emission-data engines.
* * * * *

• 111. Section 1048.135 is amended by revising paragraphs (c) and (f) to
read as follows:

Sec.  1048.135  How must I label and identify the engines I produce?

* * * * *
    (c) The label must--
    (1) Include the heading ``EMISSION CONTROL INFORMATION''.
    (2) Include your full corporate name and trademark. You may
identify another company and use its trademark instead of yours if you
comply with the provisions of Sec.  1048.635.
    (3) Include EPA's standardized designation for the engine family
(and subfamily, where applicable).
    (4) State the engine's displacement (in liters); however, you may
omit this from the label if all the engines in the engine family have
the same per-cylinder displacement and total displacement.
    (5) State the date of manufacture [DAY (optional), MONTH, and
YEAR]; however, you may omit this from the label if you stamp, engrave,
or otherwise permanently identify it elsewhere on the engine, in which
case you must also describe in your application for certification where
you will identify the date on the engine.
    (6) Identify the emission control system. Use terms and
abbreviations as described in 40 CFR 1068.45. You may omit this
information from the label if there is not enough room for it and you
put it in the owners manual instead.
    (7) State: ``THIS ENGINE IS CERTIFIED TO OPERATE ON [specify
operating fuel or fuels].''
    (8) Identify any requirements for fuel and lubricants. You may omit
this information from the label if there is not enough room for it and
you put it in the owners manual instead.
    (9) List specifications and adjustments for engine tuneups; show
the proper position for the transmission during tuneup and state which
accessories should be operating. You may omit this information from the
label if there is not enough room for it and you put it in the owners
manual instead.
    (10) State the useful life for your engine family if it has a
longer useful life under Sec.  1048.101(g)(1) or a shortened useful
life under Sec.  1048.101(g)(2).
    (11) Identify the emission standards to which you have certified
the engine (in g/kW-hr).
    (12) Include one of the following compliance statements:
    (i) For engines that may be used in nonroad or stationary
equipment, state: ``THIS ENGINE COMPLIES WITH U.S. EPA REGULATIONS FOR
[MODEL YEAR]
NONROAD AND STATIONARY ENGINES.''
    (ii) For engines that will be used only in nonroad equipment,
state: ``THIS ENGINE COMPLIES WITH U.S. EPA REGULATIONS FOR [MODEL
YEAR]
NONROAD ENGINES.''
    (iii) For engines that will be used only in stationary equipment,
state: ``THIS ENGINE COMPLIES WITH U.S. EPA REGULATIONS FOR [MODEL
YEAR]
STATIONARY ENGINES.''
    (13) Include any of the following additional statements for special
situations if they apply to your engines:
    (i) If your engines are certified only for constant-speed
operation, state: ``USE IN CONSTANT-SPEED APPLICATIONS ONLY.''
    (ii) If your engines are certified only for variable-speed
operation, state: ``USE

[[Page 59234]]

IN VARIABLE-SPEED APPLICATIONS ONLY.''
    (iii) If your engines are certified only for high-load engines,
state: ``THIS ENGINE IS NOT INTENDED FOR OPERATION AT LESS THAN 75
PERCENT OF FULL LOAD.''
    (iv) If you certify your engines under Sec.  1048.101(d), and show
in your application for certification that in-use engines will
experience infrequent high-load operation, state: ``THIS ENGINE IS NOT
INTENDED FOR OPERATION AT MORE THAN PERCENT OF FULL LOAD.'' Specify the
appropriate percentage of full load based on the nature of the engine
protection. You may add other statements to discourage operation in
engine-protection modes.
    (v) If your engines are certified to the voluntary standards in
Sec.  1048.140, state: ``BLUE SKY SERIES'' and identify the standard to
which you certify the engines.
* * * * *
    (f) If you obscure the engine label while installing the engine in
the equipment such that the label cannot be read during normal
maintenance, you must place a duplicate label on the equipment. If
others install your engine in their equipment in a way that obscures
the engine label, we require them to add a duplicate label on the
equipment (see 40 CFR 1068.105); in that case, give them the number of
duplicate labels they request and keep the following records for at
least five years:
    (1) Written documentation of the request from the equipment
manufacturer.
    (2) The number of duplicate labels you send for each engine family
and the date you sent them.

• 112. Section 1048.140 is revised to read as follows:

Sec.  1048.140  What are the provisions for certifying Blue Sky Series
engines?

    This section defines voluntary standards for a recognized level of
superior emission control for engines designated as ``Blue Sky Series''
engines. If you certify an engine family under this section, it is
subject to all the requirements of this part as if these voluntary
standards were mandatory. To receive a certificate of conformity as
``Blue Sky Series,'' you must certify to one of the sets of exhaust
emission standards in the following table:

Table 1 of Sec.   1048.140--Standards for Blue Sky Series Engines (g/kW-
                                   hr)
------------------------------------------------------------------------
   Standards for steady-state and         Standards for field-testing
     transient test  procedures                   procedures
------------------------------------------------------------------------
      HC+NOX               CO              HC+NOX              CO
------------------------------------------------------------------------
       0.80               4.4                1.10               6.6
       0.60               4.4                0.84               6.6
       0.40               4.4                0.56               6.6
       0.20               4.4                0.28               6.6
       0.10               4.4                0.14               6.6
------------------------------------------------------------------------

• 113. Section 1048.145 is amended by adding paragraphs (j) and (k) to
read as follows:

Sec.  1048.145  What provisions apply only for a limited time?

* * * * *
    (j) Delayed compliance with labeling requirements. Before the 2010
model year, you may omit the dates of manufacture from the emission
control information label as specified in Sec.  1048.135(c)(5) if you
keep those records and provide them to us upon request.
    (k) Delayed compliance with fuel tank permeation requirements.
Before the 2010 model year, you may omit the permeation-related
requirements related to plastic fuel tanks in Sec.  1048.245(e)(1)(i)
and Sec.  1048.501(e).

Subpart C--[Amended]

• 114. Section 1048.201 is amended by revising paragraph (a) to read as
follows:

Sec.  1048.201  What are the general requirements for obtaining a
certificate of conformity?

    (a) You must send us a separate application for a certificate of
conformity for each engine family. A certificate of conformity is valid
starting with the indicated effective date, but it is not valid for any
production after December 31 of the model year for which it is issued.
No certificate will be issued after December 31 of the model year.
* * * * *

• 115. Section 1048.205 is amended as follows:
• a. By revising paragraph (p)(1).
• b. By revising paragraph (q).
• c. By revising paragraph (r) introductory text.
• d. By revising paragraph (s).
• e. By revising paragraph (y).
• f. By revising paragraph (aa).

Sec.  1048.205  What must I include in my application?

* * * * *
    (p) * * *
    (1) Present exhaust emission data for HC, NOX, and CO on
an emission-data engine to show your engines meet the applicable duty-
cycle emission standards we specify in Sec.  1048.101. Show emission
figures before and after applying deterioration factors for each
engine. Include emission results for each mode if you do discrete-mode
testing under Sec.  1048.505. Include test data for each type of fuel
from 40 CFR part 1065, subpart H, on which you intend for engines in
the engine family to operate (for example, gasoline, liquefied
petroleum gas, methanol, or natural gas). If we specify more than one
grade of any fuel type (for example, a summer grade and winter grade of
gasoline), you need to submit test data only for one grade unless the
regulations of this part specify otherwise for your engine. Note that
Sec.  1048.235 allows you to submit an application in certain cases
without new emission data.
* * * * *
    (q) State that all the engines in the engine family comply with the
field-testing emission standards we specify in Sec.  1048.101(c) for
all normal operation and use when tested as specified in Sec. 
1048.515. Describe any relevant testing, engineering analysis, or other
information in sufficient detail to support your statement.
    (r) For engines not subject to transient testing requirements in
Sec.  148.101(a), include information showing how your emission
controls will function during normal in-use transient operation. For
example, this might include the following:
* * * * *
    (s) Report all test results, including those from invalid tests or
from any other tests, whether or not they were conducted according to
the test procedures of subpart F of this part. If you measure
CO2, report those emission levels (in g/kW-hr). We may ask
you to send other information to confirm that your tests were valid
under the requirements of this part and 40 CFR part 1065.
* * * * *
    (y) Include good-faith estimates of U.S.-directed production
volumes. Include a justification for the estimated production volumes
if they are substantially different than actual production volumes in
earlier years for similar models.
* * * * *
    (aa) Name an agent for service located in the United States.
Service on this agent constitutes service on you or any of your
officers or employees for any action by EPA or otherwise by the

[[Page 59235]]

United States related to the requirements of this part.

• 116. Section 1048.220 is amended by revising the introductory text and
paragraph (a) to read as follows:

Sec.  1048.220  How do I amend the maintenance instructions in my
application?

    You may amend your emission-related maintenance instructions after
you submit your application for certification as long as the amended
instructions remain consistent with the provisions of Sec.  1048.125.
You must send the Designated Compliance Officer a written request to
amend your application for certification for an engine family if you
want to change the emission-related maintenance instructions in a way
that could affect emissions. In your request, describe the proposed
changes to the maintenance instructions. If operators follow the
original maintenance instructions rather than the newly specified
maintenance, this does not allow you to disqualify those engines from
in-use testing or deny a warranty claim.
    (a) If you are decreasing, replacing, or eliminating any specified
maintenance, you may distribute the new maintenance instructions to
your customers 30 days after we receive your request, unless we
disapprove your request. This would generally include replacing one
maintenance step with another. We may approve a shorter time or waive
this requirement.
* * * * *

• 117. Section 1048.225 is revised to read as follows:

Sec.  1048.225  How do I amend my application for certification to
include new or modified engine configurations?

    Before we issue you a certificate of conformity, you may amend your
application to include new or modified engine configurations, subject
to the provisions of this section. After we have issued your
certificate of conformity, you may send us an amended application
requesting that we include new or modified engine configurations within
the scope of the certificate, subject to the provisions of this
section. You must amend your application if any changes occur with
respect to any information included in your application.
    (a) You must amend your application before you take any of the
following actions:
    (1) Add an engine configuration to an engine family. In this case,
the engine configuration added must be consistent with other engine
configurations in the engine family with respect to the criteria listed
in Sec.  1048.230.
    (2) Change an engine configuration already included in an engine
family in a way that may affect emissions, or change any of the
components you described in your application for certification. This
includes production and design changes that may affect emissions any
time during the engine's lifetime.
    (b) To amend your application for certification, send the
Designated Compliance Officer the following information:
    (1) Describe in detail the addition or change in the engine model
or configuration you intend to make.
    (2) Include engineering evaluations or data showing that the
amended engine family complies with all applicable requirements. You
may do this by showing that the original emission-data engine is still
appropriate for showing that the amended family complies with all
applicable requirements.
    (3) If the original emission-data engine for the engine family is
not appropriate to show compliance for the new or modified engine
configuration, include new test data showing that the new or modified
engine configuration meets the requirements of this part.
    (c) We may ask for more test data or engineering evaluations. You
must give us these within 30 days after we request them.
    (d) For engine families already covered by a certificate of
conformity, we will determine whether the existing certificate of
conformity covers your newly added or modified engine. You may ask for
a hearing if we deny your request (see Sec.  1048.820).
    (e) For engine families already covered by a certificate of
conformity, you may start producing the new or modified engine
configuration anytime after you send us your amended application and
before we make a decision under paragraph (d) of this section. However,
if we determine that the affected engines do not meet applicable
requirements, we will notify you to cease production of the engines and
may require you to recall the engines at no expense to the owner.
Choosing to produce engines under this paragraph (e) is deemed to be
consent to recall all engines that we determine do not meet applicable
emission standards or other requirements and to remedy the
nonconformity at no expense to the owner. If you do not provide
information required under paragraph (c) of this section within 30 days
after we request it, you must stop producing the new or modified engines.

• 118. Section 1048.230 is amended by revising paragraphs (a), (b)(3),
and (d) and removing paragraph (b)(7) to read as follows:

Sec.  1048.230  How do I select engine families?

    (a) For purposes of certification, divide your product line into
families of engines that are expected to have similar emission
characteristics throughout the useful life as described in this
section. Your engine family is limited to a single model year.
    (b) * * *
    (3) Configuration of the fuel system (for example, fuel-injected
vs. carbureted gasoline engines).
* * * * *
    (d) In unusual circumstances, you may group engines that are not
identical with respect to the things listed in paragraph (b) of this
section in the same engine family if you show that their emission
characteristics during the useful life will be similar.
* * * * *

• 119. Section 1048.235 is amended by revising paragraphs (a), (c)(4),
(d) introductory text, (d)(1), and (e) to read as follows:

Sec.  1048.235  What emission testing must I perform for my application
for a certificate of conformity?

* * * * *
    (a) Test your emission-data engines using the procedures and
equipment specified in subpart F of this part.
* * * * *
    (c) * * *
    (4) Before we test one of your engines, we may calibrate it within
normal production tolerances for anything we do not consider an
adjustable parameter. For example, this would apply where we determine
that an engine parameter is not an adjustable parameter (as defined in
Sec.  1048.801) but that it is subject to production variability.
    (d) You may ask to use carryover emission data from a previous
model year instead of doing new tests, but only if all the following
are true:
    (1) The engine family from the previous model year differs from the
current engine family only with respect to model year or other
characteristics unrelated to emissions. You may also ask to add a
configuration subject to Sec.  1048.225.
* * * * *
    (e) We may require you to test another engine of the same or
different configuration in addition to the engine tested under
paragraph (b) of this section.
* * * * *

[[Page 59236]]

• 120. Section 1048.240 is amended by revising paragraphs (a), (b), and
(c) to read as follows:

Sec.  1048.240  How do I demonstrate that my engine family complies
with exhaust emission standards?

    (a) For purposes of certification, your engine family is considered
in compliance with the applicable numerical emission standards in Sec. 
1048.101(a) and (b) if all emission-data engines representing that
family have test results showing deteriorated emission levels at or
below these standards. This includes all test points over the course of
the durability demonstration.
    (b) Your engine family is deemed not to comply if any emission-data
engine representing that family has test results showing a deteriorated
emission level for any pollutant that is above an applicable emission
standard from Sec.  1048.101. This includes all test points over the
course of the durability demonstration.
    (c) To compare emission levels from the emission-data engine with
the applicable emission standards, apply deterioration factors to the
measured emission levels for each pollutant. Specify the deterioration
factors based on emission measurements using four significant figures,
consistent with good engineering judgment. For example, your
deterioration factors must take into account any available data from
in-use testing with similar engines (see subpart E of this part).
Small-volume engine manufacturers may use assigned deterioration
factors that we establish. In addition, anyone may use assigned
deterioration factors for engine families with a projected U.S.-
directed production volume at or below 300 engines. Apply deterioration
factors as follows:
    (1) Multiplicative deterioration factor. Except as specified in
paragraph (c)(2) of this section, use a multiplicative deterioration
factor for exhaust emissions. A multiplicative deterioration factor is
the ratio of exhaust emissions at the end of useful life to exhaust
emissions at the low-hour test point. Adjust the official emission
results for each tested engine at the selected test point by
multiplying the measured emissions by the deterioration factor. If the
factor is less than one, use one.
    (2) Additive deterioration factor. Use an additive deterioration
factor for exhaust emissions if engines do not use aftertreatment
technology. Also, you may use an additive deterioration factor for
exhaust emissions for a particular pollutant if all the emission-data
engines in the engine family have low-hour emission levels at or below
0.3 g/kW-hr for HC+NOX or 0.5 g/kW-hr for CO, unless a
multiplicative deterioration factor is more appropriate. For example,
you should use a multiplicative deterioration factor if emission
increases are best represented by the ratio of exhaust emissions at the
end of the useful life to exhaust emissions at the low-hour test point.
An additive deterioration factor is the difference between exhaust
emissions at the end of useful life and exhaust emissions at the low-
hour test point. Adjust the official emission results for each tested
engine at the selected test point by adding the factor to the measured
emissions. If the factor is less than zero, use zero.
* * * * *
• 121. Section 1048.245 is amended by revising paragraphs (c) and (e) to
read as follows:

Sec.  1048.245  How do I demonstrate that my engine family complies
with evaporative emission standards?

* * * * *
    (c) Use good engineering judgment to develop a test plan to
establish deterioration factors to show how much emissions increase at
the end of the useful life.
* * * * *
    (e) You may demonstrate that your engine family complies with the
evaporative emission standards by demonstrating that you use the
following control technologies:
    (1) For certification to the standards specified in Sec. 
1048.105(a)(1), with the following technologies:
    (i) Use a tethered or self-closing gas cap on a fuel tank that
stays sealed up to a positive pressure of 24.5 kPa (3.5 psig); however,
they may contain air inlets that open when there is a vacuum pressure
inside the tank. Nonmetal fuel tanks must also use one of the
qualifying designs for controlling permeation emissions specified in 40
CFR 1060.240.
    (ii) [Reserved]
    (2) For certification to the standards specified in Sec. 
1048.105(a)(3), demonstrating that you use design features to prevent
fuel boiling under all normal operation. If you install engines in
equipment, you may do this using fuel temperature data measured during
normal operation. Otherwise, you may do this by including appropriate
information in your emission-related installation instructions.
    (3) We may establish additional options for design-based
certification where we find that new test data demonstrate that a
technology will ensure compliance with the emission standards in this
section

• 122. Section 1048.250 is amended as follows:
• a. By removing paragraph (d).
• b. By redesignating paragraphs (a) through (c) as paragraphs (b)
through (d), respectively.
• c. By adding a new paragraph (a).
• d. By revising the newly redesignated paragraph (c).

Sec.  1048.250  What records must I keep and make available to EPA?

    (a) Send the Designated Compliance Officer information related to
your U.S.-directed production volumes as described in Sec.  1048.345.
In addition, within 45 days after the end of the model year, you must
send us a report describing information about engines you produced
during the model year as follows:
    (1) State the total production volume for each engine family that
is not subject to reporting under Sec.  1048.345.
    (2) State the total production volume for any engine family for
which you produce engines after completing the reports required in
Sec.  1048.345.
    (3) For production volumes you report under this paragraph (a),
identify whether or not the figures include California sales. Include a
separate count of production volumes for California sales if those
figures are available.
* * * * *
    (c) Keep data from routine emission tests (such as test cell
temperatures and relative humidity readings) for one year after we
issue the associated certificate of conformity. Keep all other
information specified in this section for eight years after we issue
your certificate.
* * * * *

• 123. Section 1048.255 is amended by revising the section heading and
paragraph (d) to read as follows:

Sec.  1048.255  What decisions may EPA make regarding my certificate of
conformity?

* * * * *
    (d) We may void your certificate if you do not keep the records we
require or do not give us information as required under this part or
the Act.
* * * * *

Subpart D--[Amended]

• 124. Section 1048.301 is revised to read as follows:

Sec.  1048.301  When must I test my production-line engines?

    (a) If you produce engines that are subject to the requirements of
this part,

[[Page 59237]]

you must test them as described in this subpart, except as follows:
    (1) [Reserved]
    (2) We may exempt engine families with a projected U.S.-directed
production volume below 150 units from routine testing under this
subpart. Request this exemption in your application for certification
and include your basis for projecting a production volume below 150
units. We will approve your request if we agree that you have made
good-faith estimates of your production volumes. Your exemption is
approved when we grant your certificate. You must promptly notify us if
your actual production exceeds 150 units during the model year. If you
exceed the production limit or if there is evidence of a nonconformity,
we may require you to test production-line engines under this subpart,
or under 40 CFR part 1068, subpart E, even if we have approved an
exemption under this paragraph (a)(2).
    (b) We may suspend or revoke your certificate of conformity for
certain engine families if your production-line engines do not meet the
requirements of this part or you do not fulfill your obligations under
this subpart (see Sec. Sec.  1048.325 and 1048.340).
    (c) Other regulatory provisions authorize us to suspend, revoke, or
void your certificate of conformity, or order recalls for engine
families, without regard to whether they have passed these production-
line testing requirements. The requirements of this subpart do not
affect our ability to do selective enforcement audits, as described in
part 1068 of this chapter. Individual engines in families that pass
these production-line testing requirements must also conform to all
applicable regulations of this part and part 1068 of this chapter.
    (d) You may use alternate programs for testing production-line
engines in the following circumstances:
    (1) You may use analyzers and sampling systems that meet the field-
testing requirements of 40 CFR part 1065, subpart J, but not the
otherwise applicable requirements in 40 CFR part 1065 for laboratory
testing, to demonstrate compliance with duty-cycle emission standards
if you double the minimum sampling rate specified in Sec.  1048.310(b).
Use measured test results to determine whether engines comply with
applicable standards without applying a measurement allowance. This
alternate program does not require prior approval but we may disallow
use of this option where we determine that use of field-grade equipment
would prevent you from being able to demonstrate that your engines are
being produced to conform to the specifications in your application for
certification.
    (2) You may ask to use another alternate program for testing
production-line engines. In your request, you must show us that the
alternate program gives equal assurance that your products meet the
requirements of this part. We may waive some or all of this subpart's
requirements if we approve your alternate approach. For example, in
certain circumstances you may be able to give us equal assurance that
your products meet the requirements of this part by using less rigorous
measurement methods if you offset that by increasing the number of test
engines.
    (e) If you certify an engine family with carryover emission data,
as described in Sec.  1048.235(d), and these equivalent engine families
consistently pass the production-line testing requirements over the
preceding two-year period, you may ask for a reduced testing rate for
further production-line testing for that family. The minimum testing
rate is one engine per engine family. If we reduce your testing rate,
we may limit our approval to any number of model years. In determining
whether to approve your request, we may consider the number of engines
that have failed the emission tests.
    (f) We may ask you to make a reasonable number of production-line
engines available for a reasonable time so we can test or inspect them
for compliance with the requirements of this part.

• 125. Section 1048.305 is amended by adding introductory text and
revising paragraphs (a), (d), and (g) to read as follows:

Sec.  1048.305  How must I prepare and test my production-line engines?

    This section describes how to prepare and test production-line
engines. You must assemble the test engine in a way that represents the
assembly procedures for other engines in the engine family. You must
ask us to approve any deviations from your normal assembly procedures
for other production engines in the engine family.
    (a) Test procedures. Test your production-line engines using either
the steady-state or transient testing procedures specified in subpart F
of this part to show you meet the duty-cycle emission standards in
subpart B of this part. The field-testing standards apply for this
testing, but you need not do additional testing to show that
production-line engines meet the field-testing standards.
* * * * *
    (d) Setting adjustable parameters. Before any test, we may require
you to adjust any adjustable parameter to any setting within its
physically adjustable range.
    (1) We may require you to adjust idle speed outside the physically
adjustable range as needed, but only until the engine has stabilized
emission levels (see paragraph (e) of this section). We may ask you for
information needed to establish an alternate minimum idle speed.
    (2) We may specify adjustments within the physically adjustable
range by considering their effect on emission levels. We may also
consider how likely it is that someone will make such an adjustment
with in-use equipment.
* * * * *
    (g) Retesting after invalid tests. You may retest an engine if you
determine an emission test is invalid under subpart F of this part.
Explain in your written report reasons for invalidating any test and
the emission results from all tests. If we determine that you
improperly invalidated a test, we may require you to ask for our
approval for future testing before substituting results of the new
tests for invalid ones.

• 126. Section 1048.310 is amended as follows:
• a. By revising paragraph (a).
• b. By revising paragraph (c) introductory text.
• c. By revising paragraph (c)(2).
• d. By revising paragraph (f).
• e. By revising paragraph (g).
• f. By revising paragraph (h).

Sec.  1048.310  How must I select engines for production-line testing?

    (a) Use test results from two engines each quarter to calculate the
required sample size for the model year for each engine family.
* * * * *
    (c) Calculate the required sample size for each engine family.
Separately calculate this figure for HC+NOX and CO. The
required sample size is the greater of these calculated values. Use the
following equation:
[GRAPHIC] [TIFF OMITTED] TR08OC08.091

Where:

N = Required sample size for the model year.
t95 = 95% confidence coefficient, which depends on the
number of tests completed, n, as specified in the table in paragraph
(c)(1) of this section. It defines 95% confidence intervals for a
one-tail distribution.
[sigma] = Test sample standard deviation (see paragraph (c)(2) of
this section).

[[Page 59238]]

x = Mean of emission test results of the sample.
STD = Emission standard.
* * * * *
    (2) Calculate the standard deviation, [sigma], for the test sample
using the following formula:

Where:
[GRAPHIC] [TIFF OMITTED] TR08OC08.092

Xi = Emission test result for an individual engine.
n = The number of tests completed in an engine family.

* * * * *
    (f) Distribute the remaining tests evenly throughout the rest of
the year. You may need to adjust your schedule for selecting engines if
the required sample size changes. If your scheduled quarterly testing
for the remainder of the model year is sufficient to meet the
calculated sample size, you may wait until the next quarter to do
additional testing. Continue to randomly select engines from each
engine family.
    (g) Continue testing until one of the following things happens:
    (1) After completing the minimum number of tests required in
paragraph (b) of this section, the number of tests completed in an
engine family, n, is greater than the required sample size, N, and the
sample mean, x, is less than or equal to the emission standard. For
example, if N = 5.1 after the fifth test, the sample-size calculation
does not allow you to stop testing.
    (2) The engine family does not comply according to Sec.  1048.315.
    (3) You test 30 engines from the engine family.
    (4) You test one percent of your projected annual U.S.-directed
production volume for the engine family, rounded to the nearest whole
number. Do not count an engine under this paragraph (g)(4) if it fails
to meet an applicable emission standard. You may stop testing after you
test one percent of your production volume even if you have not tested
the number of engines specified in paragraph (b) of this section. For
example, if projected volume is 475 engines, test two engines in each
of the first two quarters and one engine in the third quarter to
fulfill your testing requirements under this section for that engine
family.
    (5) You choose to declare that the engine family does not comply
with the requirements of this subpart.
    (h) If the sample-size calculation allows you to stop testing for
one pollutant but not another, you must continue measuring emission
levels of all pollutants for any additional tests required under this
section. However, you need not continue making the calculations
specified in this subpart for the pollutant for which testing is not
required. This paragraph (h) does not affect the number of tests
required under this section, the required calculations in Sec. 
1048.315, or the remedial steps required under Sec.  1048.320.
* * * * *

• 127. Section 1048.315 is amended by revising paragraphs (a) and (b) to
read as follows:

Sec.  1048.315  How do I know when my engine family fails the
production-line testing requirements?

* * * * *
    (a) Calculate your test results as follows:
    (1) Initial and final test results. Calculate and round the test
results for each engine. If you do several tests on an engine,
calculate the initial results for each test, then add all the test
results together and divide by the number of tests. Round this final
calculated value for the final test results on that engine.
    (2) Final deteriorated test results. Apply the deterioration factor
for the engine family to the final test results (see Sec.  1048.240(c)).
    (3) Round deteriorated test results. Round the results to the
number of decimal places in the emission standard expressed to one more
decimal place.
    (b) Construct the following CumSum Equation for each engine family
for HC+NOX and CO emissions:

Ci = Max [0 or Ci-1 + Xi - (STD + 0.25
x [sigma])]

Where:

Ci = The current CumSum statistic.
Ci-1 = The previous CumSum statistic. For the first test,
the CumSum statistic is 0 (i.e., C1 = 0).
Xi = The current emission test result for an individual engine.
STD = Emission standard.
* * * * *

• 128. Section 1048.320 is amended by revising paragraph (b) to read as
follows:

Sec.  1048.320  What happens if one of my production-line engines fails
to meet emission standards?

* * * * *
    (b) Include the test results and describe the remedy for each
engine in the written report required under Sec.  1048.345.

• 129. Section 1048.325 is amended by revising the section heading and
paragraph (c) to read as follows:

Sec.  1048.325  What happens if an engine family fails the production-
line testing requirements?

* * * * *
    (c) Up to 15 days after we suspend the certificate for an engine
family, you may ask for a hearing (see Sec.  1048.820). If we agree
before a hearing occurs that we used erroneous information in deciding
to suspend the certificate, we will reinstate the certificate.
* * * * *

• 130. Section 1048.345 is amended as follows:
• a. By removing the introductory text.
• b. By revising paragraphs (a)(4), (a)(5), (a)(6), and (a)(8).
• c. By revising paragraphs (b) and (c).

Sec.  1048.345  What production-line testing records must I send to EPA?

    (a) * * *
    (4) Describe each test engine, including the engine family's
identification and the engine's model year, build date, model number,
identification number, and number of hours of operation before testing.
    (5) Identify how you accumulated hours of operation on the engines
and describe the procedure and schedule you used.
    (6) Provide the test number; the date, time and duration of
testing; test procedure; all initial test results; final test results;
and final deteriorated test results for all tests. Provide the emission
results for all measured pollutants. Include information for both valid
and invalid tests and the reason for any invalidation.
* * * * *
    (8) Provide the CumSum analysis required in Sec.  1048.315 and the
sample-size calculation required in Sec.  1048.310 for each engine family.
* * * * *
    (b) We may ask you to add information to your written report, so we
can determine whether your new engines conform with the requirements of
this subpart. We may also ask you to send less information.
    (c) An authorized representative of your company must sign the
following statement:
    We submit this report under Sections 208 and 213 of the Clean Air
Act. Our production-line testing conformed completely with the
requirements of 40 CFR part 1048. We have not changed production
processes or quality-control procedures for test engines in a way that
might affect emission controls. All the information in this report is
true and accurate, to the best of my knowledge. I know of the penalties
for violating the

[[Page 59239]]

Clean Air Act and the regulations. (Authorized Company Representative)
* * * * *

• 131. Section 1048.350 is amended by revising paragraphs (b), (e), and
(f) to read as follows:

Sec.  1048.350  What records must I keep?

* * * * *
    (b) Keep paper or electronic records of your production-line
testing for eight years after you complete all the testing required for
an engine family in a model year.
* * * * *
    (e) If we ask, you must give us projected or actual production
figures for an engine family. We may ask you to divide your production
figures by maximum engine power, displacement, fuel type, or assembly
plant (if you produce engines at more than one plant).
    (f) Keep records of the engine identification number for each
engine you produce under each certificate of conformity. You may
identify these numbers as a range. Give us these records within 30 days
if we ask for them.
* * * * *

Subpart E--[Amended]

• 132. Section 1048.405 is amended by adding paragraph (d) to read as
follows:

Sec.  1048.405  How does this program work?

* * * * *
    (d) In appropriate extreme and unusual circumstances that are
clearly outside your control and could not have been avoided by the
exercise of prudence, diligence, and due care, we may waive the in-use
testing requirement for an engine family. For example, if your test
fleet is destroyed by severe weather during service accumulation and we
agree that completion of testing is not possible, we would generally
waive testing requirements for that engine family.

• 133. Section 1048.410 is amended by revising paragraph (e) to read as
follows:

Sec.  1048.410  How must I select, prepare, and test my in-use engines?

* * * * *
    (e) You may do repeat measurements with a test engine; however, you
must conduct the same number of tests on each engine.
* * * * *

• 134. Section 1048.415 is amended by revising paragraphs (c) and (d) to
read as follows:

Sec.  1048.415  What happens if in-use engines do not meet requirements?

* * * * *
    (c) We will consider failure rates, average emission levels, and
any defects--among other things--to decide on taking remedial action
under this subpart (see 40 CFR 1068.505). We may consider the results
from any voluntary additional testing you perform. We may also consider
information related to testing from other engine families showing that
you designed them to exceed the minimum requirements for controlling
emissions. We may order a recall before or after you complete testing
of an engine family if we determine a substantial number of engines do
not conform to section 213 of the Act or to this part. The scope of the
recall may include other engine families in the same or different model
years if the cause of the problem identified in paragraph (a) of this
section applies more broadly than the tested engine family, as allowed
by the Act.
    (d) If in-use testing reveals a design or manufacturing defect that
prevents engines from meeting the requirements of this part, you must
correct the defect as soon as possible for any future production for
engines in every family affected by the defect. See 40 CFR 1068.501 for
additional requirements related to defect reporting.
* * * * *

Subpart F--[Amended]

• 135. Section 1048.501 is amended by revising paragraphs (c) and (e) and
removing paragraph (h) to read as follows:

Sec.  1048.501  How do I run a valid emission test?

* * * * *
    (c) Use the fuels and lubricants specified in 40 CFR part 1065,
subpart H, to perform valid tests for all the testing we require in
this part, except as noted in Sec.  1048.515. For service accumulation,
use the test fuel or any commercially available fuel that is
representative of the fuel that in-use engines will use.
* * * * *
    (e) To test engines for evaporative emissions, use the equipment
and procedures specified for testing diurnal emissions as described in
40 CFR 1060.525, subject to the following provisions:
    (1) Precondition nonmetal fuel tanks as specified in 40 CFR
1060.520(a) and (b).
    (2) For engines equipped with carbon canisters that store fuel
vapors that will be purged for combustion in the engine, precondition
the canister as specified in 40 CFR 86.132-96(h) and then operate the
engine for 60 minutes over repeat runs of the duty cycle specified in
Appendix I of this part.
    (3) Start the diurnal emission test after the engine is stabilized
at room temperatures, but within 36 hours after the engine operation
specified in paragraph (e)(2) of this section.
    (4) You may not separately measure permeation emissions from
nonmetal fuel tanks for subtracting from the diurnal emission
measurement.
    (5) Note that you may omit testing for evaporative emissions during
certification if you certify by design, as specified in Sec.  1048.245.
* * * * *

• 136. Section 1048.505 is revised to read as follows:

Sec.  1048.505  What transient duty cycles apply for laboratory testing?

    This section describes how to test engines under steady-state
conditions. In some cases, we allow you to choose the appropriate
steady-state duty cycle for an engine. In these cases, you must use the
duty cycle you select in your application for certification for all
testing you perform for that engine family. If we test your engines to
confirm that they meet emission standards, we will use the duty cycles
you select for your own testing. We may also perform other testing as
allowed by the Clean Air Act.
    (a) You may perform steady-state testing with either discrete-mode
or ramped-modal cycles, as follows:
    (1) For discrete-mode testing, sample emissions separately for each
mode, then calculate an average emission level for the whole cycle
using the weighting factors specified for each mode. Calculate cycle
statistics and compare with the established criteria as specified in 40
CFR 1065.514 to confirm that the test is valid. Operate the engine and
sampling system as follows:
    (i) Engines with lean NOX aftertreatment. For lean-burn engines
that depend on aftertreatment to meet the NOX emission
standard, operate the engine for 5-6 minutes, then sample emissions for
1-3 minutes in each mode.
    (ii) Engines without lean NOX aftertreatment. For other engines,
operate the engine for at least 5 minutes, then sample emissions for at
least 1 minute in each mode.
    (2) For ramped-modal testing, start sampling at the beginning of
the first mode and continue sampling until the end of the last mode.
Calculate emissions and cycle statistics the same

[[Page 59240]]

as for transient testing as specified in 40 CFR part 1065, subpart G.
    (b) Measure emissions by testing the engine on a dynamometer with
one or more of the following sets of duty cycles to determine whether
it meets the steady-state emission standards in Sec.  1048.101(b):
    (1) For engines from an engine family that will be used only in
variable-speed applications, use one of the following duty cycles:
    (i) The following duty cycle applies for discrete-mode testing:

                                           Table 1 of Sec.   1048.505
----------------------------------------------------------------------------------------------------------------
                                                                                      Torque         Weighting
                  C2 mode No.                           Engine speed \1\           (percent) \2\      factors
----------------------------------------------------------------------------------------------------------------
1.............................................  Maximum test speed..............              25            0.06
2.............................................  Intermediate test...............             100            0.02
3.............................................  Intermediate test...............              75            0.05
4.............................................  Intermediate test...............              50            0.32
5.............................................  Intermediate test...............              25            0.30
6.............................................  Intermediate test...............              10            0.10
7.............................................  Warm idle.......................               0            0.15
----------------------------------------------------------------------------------------------------------------
\1\ Speed terms are defined in 40 CFR part 1065.
\2\ The percent torque is relative to the maximum torque at the given engine speed.

    (ii) The following duty cycle applies for ramped-modal testing:

                                           Table 2 of Sec.   1048.505
----------------------------------------------------------------------------------------------------------------
                                      Time in mode
              RMC mode                  (seconds)      Engine speed \1,2\           Torque (percent) \2,3\
----------------------------------------------------------------------------------------------------------------
1a Steady-state....................             119  Warm idle.............  0
1b Transition......................              20  Linear transition.....  Linear transition.
2a Steady-state....................              29  Intermediate speed....  100
2b Transition......................              20  Intermediate speed....  Linear transition.
3a Steady-state....................             150  Intermediate speed....  10
3b Transition......................              20  Intermediate speed....  Linear transition.
4a Steady-state....................              80  Intermediate speed....  75
4b Transition......................              20  Intermediate speed....  Linear transition.
5a Steady-state....................             513  Intermediate speed....  25
5b Transition......................              20  Intermediate speed....  Linear transition.
6a Steady-state....................             549  Intermediate speed....  50
6b Transition......................              20  Linear transition.....  Linear transition.
7a Steady-state....................              96  Maximum test speed....  25
7b Transition......................              20  Linear transition.....  Linear transition.
8 Steady-state.....................             124  Warm idle.............  0
----------------------------------------------------------------------------------------------------------------
\1\ Speed terms are defined in 40 CFR part 1065.
\2\ Advance from one mode to the next within a 20-second transition phase. During the transition phase, command
  a linear progression from the torque setting of the current mode to the torque setting of the next mode.
\3\ The percent torque is relative to maximum torque at the commanded engine speed.

    (2) For engines from an engine family that will be used only at a
single, rated speed, use the 5-mode duty cycle or the corresponding
ramped-modal cycle described in 40 CFR part 1039, Appendix II, paragraph (a).
    (3) Use a duty cycle from both paragraphs (b)(1) and (b)(2) of this
section if you will not restrict an engine family to constant-speed or
variable-speed applications.
    (4) Use a duty cycle specified in paragraph (b)(2) of this section
for all severe-duty engines.
    (5) For high-load engines, use one of the following duty cycles:
    (i) The following duty cycle applies for discrete-mode testing:

                                           Table 3 of Sec.   1048.505
----------------------------------------------------------------------------------------------------------------
                                                                                   Minimum time
              D1 mode No.                     Engine speed            Torque          in mode        Weighting
                                                                   (percent) \1\     (minutes)        factors
----------------------------------------------------------------------------------------------------------------
1.....................................  Maximum test............             100             3.0            0.50
2.....................................  Maximum test............              75             3.0            0.50
----------------------------------------------------------------------------------------------------------------
\1\ The percent torque is relative to the maximum torque at maximum test speed.

    (ii) The following duty cycle applies for discrete-mode testing:

[[Page 59241]]

                                           Table 4 of Sec.   1048.505
----------------------------------------------------------------------------------------------------------------
                                      Time in mode
             RMC modes                  (seconds)    Engine speed (percent)       Torque (percent) \1,\ \2\
----------------------------------------------------------------------------------------------------------------
1a Steady-state....................             290  Engine governed.......  100
1b Transition......................              20  Engine governed.......  Linear transition.
2 Steady-state.....................             290  Engine governed.......  75
----------------------------------------------------------------------------------------------------------------
\1\ The percent torque is relative to maximum test torque.
\2\ Advance from one mode to the next within a 20-second transition phase. During the transition phase, command
  a linear progression from the torque setting of the current mode to the torque setting of the next mode.

    (c) If we test an engine to confirm that it meets the duty-cycle
emission standards, we will use the steady-state duty cycles that apply
for that engine family.
    (d) During idle mode, operate the engine at its warm idle speed as
described in 40 CFR 1065.510.
    (e) For full-load operating modes, operate the engine at wide-open
throttle.
    (f) See 40 CFR part 1065 for detailed specifications of tolerances
and calculations.
    (g) For those cases where steady-state testing does not directly
follow a transient test, perform the steady-state test according to
this section after an appropriate warm-up period, consistent with 40
CFR part 1065, subpart F.

• 137. Section 1048.510 is amended to read as follows:
• a. By revising the section heading.
• b. By revising paragraph (a).
• c. By removing and reserving paragraph (b).
• d. By revising paragraph (c) introductory text and (c)(1).

Sec.  1048.510  What transient duty cycles apply for laboratory testing?

    (a) Starting with the 2007 model year, measure emissions by testing
the engine on a dynamometer with the duty cycle described in Appendix
II to determine whether it meets the transient emission standards in
Sec.  1048.101(a).
    (b) [Reserved]
    (c) Warm up the test engine as follows before running a transient test:
    (1) Operate the engine for the first 180 seconds of the appropriate
duty cycle, then allow it to idle without load for 30 seconds. At the
end of the 30-second idling period, start measuring emissions as the
engine operates over the prescribed duty cycle. For severe-duty
engines, this engine warm-up procedure may include up to 15 minutes of
operation over the appropriate duty cycle.
* * * * *

• 138. Section 1048.515 is amended by revising paragraph (b)(1)(i) to
read as follows:

Sec.  1048.515  What are the field-testing procedures?

* * * * *
    (b) * * *
    (1) * * *
    (i) Average power must be at least 5 percent of maximum brake power.
* * * * *

Subpart G--[Amended]

• 139. Section 1048.601 is revised to read as follows:

Sec.  1048.601  What compliance provisions apply to these engines?

    (a) Engine and equipment manufacturers, as well as owners,
operators, and rebuilders of engines subject to the requirements of
this part, and all other persons, must observe the provisions of this
part, the requirements and prohibitions in 40 CFR part 1068, and the
provisions of the Act.
    (b) This paragraph (b) describes how the replacement-engine
provisions of 40 CFR 1068.240 apply for engines subject to the
requirements of this part in conjunction with the secondary engine
manufacturer provisions in 40 CFR 1068.262. For cases in which the
secondary engine manufacturer completes assembly of the engine, these
provisions apply as written. If the secondary engine manufacturer
arranges for a third party to complete engine assembly, the following
additional provisions apply:
    (1) The ultimate purchaser must purchase (or otherwise order) the
replacement engine from the secondary engine manufacturer. The
secondary engine manufacturer must provide assembly instructions to the
engine assembler (unless the engine being replaced was not subject to
emission standards). The secondary engine manufacturer may arrange for
the original engine manufacturer to ship the engine directly to the
engine assembler. However, if the secondary engine manufacturer does
not take possession of the engine, it must supply the engine label
specified in 40 CFR 1068.240 to the engine assembler and the engine
assembler must apply the label before shipping the engine.
    (2) The secondary engine manufacturer and engine assembler are both
responsible if the engine is installed in new equipment or otherwise
violates the circumvention provisions of 40 CFR 1068.240.
    (3) Consider the following example. A secondary engine manufacturer
receiving a valid request for a replacement engine for which it does
not already have an engine available in inventory may order a partially
complete engine from an original engine manufacturer and have it
shipped directly to an independent engine assembler. In this case, the
secondary engine manufacturer must state in its order that the
partially complete engine should be labeled as being exempt under 40
CFR 1068.240 and identify the engine assembler's address; the secondary
engine manufacture must also provide instructions to the engine
assembler. The original engine manufacturer would label the engine as
described in 40 CFR 1068.262, identifying the replacement-engine
exemption as the basis for shipping an uncertified engine, and ship the
engine directly to the assembler. The engine assembler would complete
the assembly by applying the label and otherwise following the
instructions provided by the secondary engine manufacturer.

• 140. Section 1048.605 is amended by revising the section heading and
paragraph (d)(7)(ii) to read as follows:

Sec.  1048.605  What provisions apply to engines certified under the
motor vehicle program?

* * * * *
    (d) * * *
    (7) * * *
    (ii) List the engine or equipment models you expect to produce
under this exemption in the coming year and describe your basis for
meeting the sales restrictions of paragraph (d)(3) of this section.
* * * * *

• 141. Section 1048.610 is amended by revising the section heading and
paragraphs (d)(7)(ii) and (g) to read as follows:

[[Page 59242]]

Sec.  1048.610  What provisions apply to vehicles certified under the
motor vehicle program?

* * * * *
    (d) * * *
    (7) * * *
    (ii) List the equipment models you expect to produce under this
exemption in the coming year and describe your basis for meeting the
sales restrictions of paragraph (d)(3) of this section.
* * * * *
    (g) Participation in averaging, banking and trading. Vehicles
adapted for nonroad use under this section may generate credits under
the ABT provisions in 40 CFR part 86. These vehicles must be included
in the calculation of the applicable fleet average in 40 CFR part 86.

• 142. A new Sec.  1048.612 is added to subpart G to read as follows:

Sec.  1048.612  What is the exemption for delegated final assembly?

    The provisions of 40 CFR 1068.261 related to delegated final
assembly apply for engines certified under this part 1048, with the
following exceptions and clarifications:
    (a) The provisions related to reduced auditing rates in 40 CFR
1068.261(d)(3)(iii) apply starting with the 2014 model year.
    (b) [Reserved]

• 143. Section 1048.615 is revised to read as follows:

Sec.  1048.615  What are the provisions for exempting engines designed
for lawn and garden applications?

    This section is intended for engines designed for lawn and garden
applications, but it applies to any engines meeting the criteria in
paragraph (a) of this section.
    (a) If an engine meets all the following criteria, it is exempt
from the requirements of this part:
    (1) The engine must have a nominal displacement of 1000 cc or less.
    (2) The engine must have a maximum engine power at or below 30 kW.
    (3) The engine must be in an engine family that has a valid
certificate of conformity showing that it meets emission standards for
Class II engines under 40 CFR part 90 or 1054 for the appropriate model
year.
    (b) The only requirements or prohibitions from this part that apply
to an engine that meets the criteria in paragraph (a) of this section
are in this section.
    (c) If your engines do not meet the criteria listed in paragraph
(a) of this section, they will be subject to the provisions of this
part. Introducing these engines into commerce without a valid exemption
or certificate of conformity violates the prohibitions in 40 CFR 1068.101.
    (d) Engines exempted under this section are subject to all the
requirements affecting engines under 40 CFR part 90 or 1054. The
requirements and restrictions of 40 CFR part 90 or 1054 apply to anyone
manufacturing these engines, anyone manufacturing equipment that uses
these engines, and all other persons in the same manner as if these
engines had a total maximum engine power at or below 19 kW.

• 144. Section 1048.620 is amended by revising the section heading to
read as follows:

Sec.  1048.620  What are the provisions for exempting large engines
fueled by natural gas or liquefied petroleum gas?

* * * * *

• 145. Section 1048.630 is revised to read as follows:

Sec.  1048.630  What are the provisions for exempting engines used
solely for competition?

    We may grant you an exemption from the standards and requirements
of this part for a new engine on the grounds that it is to be used
solely for competition under the provisions of 40 CFR 1054.620. The
requirements of this part do not apply to engines that we exempt for
use solely for competition.

• 146. Section 1048.635 is amended by revising paragraph (b) to read as
follows:

Sec.  1048.635  What special provisions apply to branded engines?

* * * * *
    (b) In your application for certification, identify the company
whose trademark you will use.
* * * * *

• 147. A new Sec.  1048.640 is added to subpart G to read as follows:

Sec.  1048.640  What special provisions apply for small-volume engine
manufacturers?

    This section describes how we apply the special provisions in this
part for small-volume engine manufacturers.
    (a) Special provisions apply for small-volume engine manufacturers,
as illustrated by the following examples:
    (1) Waived requirements related to torque broadcasting. See Sec. 
1048.115.
    (2) Assigned deterioration factors to reduce testing burden. See
Sec.  1048.240.
    (3) Additional special provisions apply for small-volume engine and
equipment manufacturers under 40 CFR part 1068. For example, see 40 CFR
1068.250.
    (b) If you use any of the provisions of this part that apply
specifically to small-volume engine manufacturers and we find that you
do not qualify to use these provisions, we may consider you to be in
violation of the requirements that apply for companies that are not
small-volume engine manufacturers. If you no longer qualify as a small-
volume engine manufacturer (based on increased production volumes or
other factors), we will work with you to determine a reasonable
schedule for complying with additional requirements that apply. For
example, if you no longer qualify as a small-volume engine manufacturer
shortly before you certify your engines for the next model year, we
might allow you to use assigned deterioration factors for one more
model year.

Subpart I--[Amended]

• 148. Section 1048.801 is amended as follows:
• a. By revising the definitions for ``Aftertreatment'', ``Constant-speed
operation'', ``Designated Compliance Officer'', ``Emission-control
system'', ``Engine configuration'', ``Low-hour'' ``Maximum engine
power'', ``Model year'', ``New nonroad engine'', ``Noncommercial
fuel'', ``Nonmethane hydrocarbon'', ``Official emission result'',
``Owners manual'', ``Oxides of nitrogen'',``Small-volume engine
manufacturer'', ``Steady-state'', ``Total hydrocarbon'', ``Total
hydrocarbon equivalent'', and ``Useful life''.
• b. By adding definitions for ``Alcohol-fueled engine'', ``Days'',
``Engine'', and ``Sealed'' in alphabetical order.

Sec.  1048.801  What definitions apply to this part?

* * * * *
    Aftertreatment means relating to a catalytic converter, particulate
filter, or any other system, component, or technology mounted
downstream of the exhaust valve (or exhaust port) whose design function
is to decrease emissions in the engine exhaust before it is exhausted
to the environment. Exhaust-gas recirculation (EGR), turbochargers, and
oxygen sensors are not aftertreatment.
* * * * *
    Alcohol-fueled engine means an engine that is designed to run using
an alcohol fuel. For purposes of this definition, alcohol fuels do not
include fuels with a nominal alcohol content below 25 percent by volume.
* * * * *
    Constant-speed operation has the meaning given in 40 CFR 1065.1001.
* * * * *
    Days means calendar days unless otherwise specified. For example,
where we specify working days, we mean

[[Page 59243]]

calendar days excluding weekends and U.S. national holidays.
    Designated Compliance Officer means the Manager, Heavy-Duty and
Nonroad Engine Group (6405-J), U.S. Environmental Protection Agency,
1200 Pennsylvania Ave., NW., Washington, DC 20460.
* * * * *
    Emission-control system means any device, system, or element of
design that controls or reduces the emissions of regulated pollutants
from an engine.
* * * * *
    Engine has the meaning given in 40 CFR 1068.30. This includes
complete and partially complete engines.
    Engine configuration means a unique combination of engine hardware
and calibration within an engine family. Engines within a single engine
configuration differ only with respect to normal production variability
or factors unrelated to emissions.
* * * * *
    Low-hour means relating to an engine with stabilized emissions and
represents the undeteriorated emission level. This would generally
involve less than 125 hours of operation.
* * * * *
    Maximum engine power has one of the following meanings:
    (1) For engines at or below 100 kW, maximum engine power has the
meaning given in 40 CFR 90.3 for 2010 and earlier model years and in 40
CFR 1054.140 for 2011 and later model years.
    (2) For engines above 100 kW, maximum engine power has the meaning
given in 40 CFR 1039.140.
* * * * *
    Model year means one of the following things:
    (1) For freshly manufactured equipment and engines (see definition
of ``new nonroad engine,'' paragraph (1)), model year means one of the
following:
    (i) Calendar year.
    (ii) Your annual new model production period if it is different
than the calendar year.
    This must include January 1 of the calendar year for which the
model year is named. It may not begin before January 2 of the previous
calendar year and it must end by December 31 of the named calendar year.
    (2) For an engine that is converted to a nonroad engine after being
placed into service as a stationary engine, or being certified and
placed into service as a motor vehicle engine, model year means the
calendar year in which the engine was originally produced. For a motor
vehicle engine that is converted to be a nonroad engine without having
been certified, model year means the calendar year in which the engine
becomes a new nonroad engine. (See definition of ``new nonroad
engine,'' paragraph (2)).
    (3) For a nonroad engine excluded under Sec.  1048.5 that is later
converted to operate in an application that is not excluded, model year
means the calendar year in which the engine was originally produced
(see definition of ``new nonroad engine,'' paragraph (3)).
    (4) For engines that are not freshly manufactured but are installed
in new nonroad equipment, model year means the calendar year in which
the engine is installed in the new nonroad equipment (see definition of
``new nonroad engine,'' paragraph (4)).
    (5) For imported engines:
    (i) For imported engines described in paragraph (5)(i) of the
definition of ``new nonroad engine,'' model year has the meaning given
in paragraphs (1) through (4) of this definition.
    (ii) For imported engines described in paragraph (5)(ii) of the
definition of ``new nonroad engine,'' model year means the calendar
year in which the engine is modified.
    (iii) For imported engines described in paragraph (5)(iii) of the
definition of ``new nonroad engine,'' model year means the calendar
year in which the engine is assembled in its imported configuration,
unless specified otherwise in this part or in 40 CFR part 1068.
* * * * *
    New nonroad engine means any of the following things:
    (1) A freshly manufactured nonroad engine for which the ultimate
purchaser has never received the equitable or legal title. This kind of
engine might commonly be thought of as ``brand new.'' In the case of
this paragraph (1), the engine is new from the time it is produced
until the ultimate purchaser receives the title or the product is
placed into service, whichever comes first.
    (2) An engine originally manufactured as a motor vehicle engine or
a stationary engine that is later used or intended to be used in a
piece of nonroad equipment. In this case, the engine is no longer a
motor vehicle or stationary engine and becomes a ``new nonroad
engine.'' The engine is no longer new when it is placed into nonroad
service. This paragraph (2) applies if a motor vehicle engine or a
stationary engine is installed in nonroad equipment, or if a motor
vehicle or a piece of stationary equipment is modified (or moved) to
become nonroad equipment.
    (3) A nonroad engine that has been previously placed into service
in an application we exclude under Sec.  1048.5, when that engine is
installed in a piece of equipment that is covered by this part 1048.
The engine is no longer new when it is placed into nonroad service
covered by this part 1048. For example, this would apply to a marine-
propulsion engine that is no longer used in a marine vessel but is
instead installed in a piece of nonroad equipment subject to the
provisions of this part.
    (4) An engine not covered by paragraphs (1) through (3) of this
definition that is intended to be installed in new nonroad equipment.
This generally includes installation of used engines in new equipment.
The engine is no longer new when the ultimate purchaser receives a
title for the equipment or the product is placed into service,
whichever comes first.
    (5) An imported nonroad engine, subject to the following provisions:
    (i) An imported nonroad engine covered by a certificate of
conformity issued under this part that meets the criteria of one or
more of paragraphs (1) through (4) of this definition, where the
original engine manufacturer holds the certificate, is new as defined
by those applicable paragraphs.
    (ii) An imported engine covered by a certificate of conformity
issued under this part, where someone other than the original engine
manufacturer holds the certificate (such as when the engine is modified
after its initial assembly), is a new nonroad engine when it is
imported. It is no longer new when the ultimate purchaser receives a
title for the engine or it is placed into service, whichever comes first.
    (iii) An imported nonroad engine that is not covered by a
certificate of conformity issued under this part at the time of
importation is new. This addresses uncertified engines and equipment
initially placed into service that someone seeks to import into the
United States. Importation of this kind of engine (or equipment
containing such an engine) is generally prohibited by 40 CFR part 1068.
However, the importation of such an engine is not prohibited if the
engine has a model year before 2004, since it is not subject to standards.
* * * * *
    Noncommercial fuel means a combustible product that is not marketed
as a commercial fuel, but is used as a fuel for nonroad engines. For
example, this includes methane that is produced and released from
landfills or oil wells, or similar unprocessed fuels that are not
intended to meet any otherwise applicable fuel specifications. See
Sec.  1048.625 for provisions related to

[[Page 59244]]

engines designed to burn noncommercial fuels.
* * * * *
    Nonmethane hydrocarbon has the meaning given in 40 CFR 1065.1001.
* * * * *
    Official emission result means the measured emission rate for an
emission-data engine on a given duty cycle before the application of
any deterioration factor.
    Owners manual means a document or collection of documents prepared
by the engine manufacturer for the owner or operator to describe
appropriate engine maintenance, applicable warranties, and any other
information related to operating or keeping the engine. The owners
manual is typically provided to the ultimate purchaser at the time of
sale. The owners manual may be in paper or electronic format.
    Oxides of nitrogen has the meaning given in 40 CFR 1065.1001.
* * * * *
    Sealed has the meaning given in 40 CFR 1060.801.
* * * * *
    Small-volume engine manufacturer means a company meeting either of
the following characteristics:
    (1) An engine manufacturer with U.S.-directed production volumes of
engines subject to the requirements of this part totaling no more than
2,000 units in any year. This includes engines produced by parent or
subsidiary companies.
    (2) An engine manufacturer with fewer than 200 employees. This
includes any employees working for parent or subsidiary companies.
* * * * *
    Steady-state has the meaning given in 40 CFR 1065.1001.
* * * * *
    Total hydrocarbon has the meaning given in 40 CFR 1065.1001. This
generally means the combined mass of organic compounds measured by the
specified procedure for measuring total hydrocarbon, expressed as a
hydrocarbon with a hydrogen-to-carbon mass ratio of 1.85:1.
    Total hydrocarbon equivalent has the meaning given in 40 CFR 1065.1001.
* * * * *
    Useful life means the period during which the engine is designed to
properly function in terms of reliability and fuel consumption, without
being remanufactured, specified as a number of hours of operation or
calendar years, whichever comes first. It is the period during which a
nonroad engine is required to comply with all applicable emission
standards. See Sec.  1048.101(g). If an engine has no hour meter, the
specified number of hours does not limit the period during which an in-
use engine is required to comply with emission standards unless the
degree of service accumulation can be verified separately.
* * * * *

• 149. Section 1048.810 is revised to read as follows:

Sec.  1048.810  What materials does this part reference?

    Documents listed in this section have been incorporated by
reference into this part. The Director of the Federal Register approved
the incorporation by reference as prescribed in 5 U.S.C. 552(a) and 1
CFR part 51. Anyone may inspect copies at the U.S. EPA, Air and
Radiation Docket and Information Center, 1301 Constitution Ave., NW.,
Room B102, EPA West Building, Washington, DC 20460 or at the National
Archives and Records Administration (NARA). For information on the
availability of this material at NARA, call 202-741-6030, or go to:
http://www.archives.gov/federal_register/code_of_federal_
regulations/ibr_locations.html.
    (a) SAE material. Table 1 of this section lists material from the
Society of Automotive Engineers that we have incorporated by reference.
The first column lists the number and name of the material. The second
column lists the sections of this part where we reference it. Anyone
may purchase copies of these materials from the Society of Automotive
Engineers, 400 Commonwealth Drive, Warrendale, PA 15096 or 
http://www.sae.org. Table 1 follows:

                Table 1 of Sec.   1048.810--SAE Materials

------------------------------------------------------------------------
                                                             Part 1048
                Document number and name                     reference
------------------------------------------------------------------------
SAE J2260, Nonmetallic Fuel System Tubing with One or           1048.105
 More Layers, November 2004.............................
------------------------------------------------------------------------

    (b) ISO material. Table 2 of this section lists material from the
International Organization for Standardization that we have
incorporated by reference. The first column lists the number and name
of the material. The second column lists the section of this part where
we reference it. Anyone may purchase copies of these materials from the
International Organization for Standardization, Case Postale 56, CH-
1211 Geneva 20, Switzerland or http://www.iso.org. Table 2 follows:

                Table 2 of Sec.   1048.810--ISO Materials

------------------------------------------------------------------------
                                                             Part 1048
                Document number and name                     reference
------------------------------------------------------------------------
ISO 9141-2 Road vehicles--Diagnostic systems--Part 2:           1048.110
 CARB requirements for interchange of digital
 information, February 1994.............................
ISO 14230-4 Road vehicles--Diagnostic systems--Keyword          1048.110
 Protocol 2000--Part 4: Requirements for emission-
 related systems, June 2000.............................
------------------------------------------------------------------------

[[Page 59245]]

• 150. A new Sec.  1048.825 is added to read as follows:

Sec.  1048.825  What reporting and recordkeeping requirements apply
under this part?

    Under the Paperwork Reduction Act (44 U.S.C. 3501 et seq.), the
Office of Management and Budget approves the reporting and
recordkeeping specified in the applicable regulations. The following
items illustrate the kind of reporting and recordkeeping we require for
engines and equipment regulated under this part:
    (a) We specify the following requirements related to engine
certification in this part 1048:
    (1) In Sec.  1048.20 we require manufacturers of stationary engines
to label their engines in certain cases.
    (2) In Sec.  1048.135 we require engine manufacturers to keep
certain records related to duplicate labels sent to equipment manufacturers.
    (3) In Sec.  1048.145 we include various reporting and
recordkeeping requirements related to interim provisions.
    (4) In subpart C of this part we identify a wide range of
information required to certify engines.
    (5) In Sec. Sec.  1048.345 and 1048.350 we specify certain records
related to production-line testing.
    (6) In Sec. Sec.  1048.420 and 1048.425 we specify certain records
related to in-use testing.
    (7) In subpart G of this part we identify several reporting and
recordkeeping items for making demonstrations and getting approval
related to various special compliance provisions.
    (b) [Reserved]
    (c) We specify the following requirements related to testing in 40
CFR part 1065:
    (1) In 40 CFR 1065.2 we give an overview of principles for
reporting information.
    (2) In 40 CFR 1065.10 and 1065.12 we specify information needs for
establishing various changes to published test procedures.
    (3) In 40 CFR 1065.25 we establish basic guidelines for storing
test information.
    (4) In 40 CFR 1065.695 we identify data that may be appropriate for
collecting during testing of in-use engines using portable analyzers.
    (d) We specify the following requirements related to the general
compliance provisions in 40 CFR part 1068:
    (1) In 40 CFR 1068.5 we establish a process for evaluating good
engineering judgment related to testing and certification.
    (2) In 40 CFR 1068.25 we describe general provisions related to
sending and keeping information.
    (3) In 40 CFR 1068.27 we require manufacturers to make engines
available for our testing or inspection if we make such a request.
    (4) In 40 CFR 1068.105 we require equipment manufacturers to keep
certain records related to duplicate labels from engine manufacturers.
    (5) In 40 CFR 1068.120 we specify recordkeeping related to
rebuilding engines.
    (6) In 40 CFR part 1068, subpart C, we identify several reporting
and recordkeeping items for making demonstrations and getting approval
related to various exemptions.
    (7) In 40 CFR part 1068, subpart D, we identify several reporting
and recordkeeping items for making demonstrations and getting approval
related to importing engines.
    (8) In 40 CFR 1068.450 and 1068.455 we specify certain records
related to testing production-line engines in a selective enforcement
audit.
    (9) In 40 CFR 1068.501 we specify certain records related to
investigating and reporting emission-related defects.
    (10) In 40 CFR 1068.525 and 1068.530 we specify certain records
related to recalling nonconforming engines.

Appendix I--[Reserved]

• 151. Appendix I to part 1048 is removed and reserved.

PART 1051--CONTROL OF EMISSIONS FROM RECREATIONAL ENGINES AND VEHICLES

• 152. The authority citation for part 1051 continues to read as follows:

    Authority: 42 U.S.C. 7401-7671q.

Subpart A--[Amended]

• 153. Section 1051.1 is amended by revising paragraph (a)(4) to read as
follows:

Sec.  1051.1  Does this part apply for my vehicles or engines?

    (a) * * *
    (4) Offroad utility vehicles with engines with displacement less
than or equal to 1000 cc, maximum engine power less than or equal to 30
kW, and maximum vehicle speed higher than 25 miles per hour. Offroad
utility vehicles that are subject to this part are subject to the same
requirements as ATVs. This means that any requirement that applies to
ATVs also applies to these offroad utility vehicles, without regard to
whether the regulatory language mentions offroad utility vehicles.
* * * * *

• 154. A new Sec.  1051.2 is added to read as follows:

Sec.  1051.2  Who is responsible for compliance?

    The regulations in this part 1051 contain provisions that affect
both vehicle manufacturers and others. However, the requirements of
this part are generally addressed to the vehicle manufacturer. The term
``you'' generally means the vehicle manufacturer, as defined in Sec. 
1051.801, especially for issues related to certification (including
production-line testing, reporting, etc.).

• 155. Section 1051.5 is amended by revising paragraph (a) to read as
follows:

Sec.  1051.5  Which engines are excluded from this part's requirements?

    (a)(1) You may exclude vehicles with compression-ignition engines.
See 40 CFR parts 89 and 1039 for regulations that cover these engines.
    (2) Vehicles with a combined total vehicle dry weight under 20.0
kilograms are excluded from this part. Spark-ignition engines in these
vehicles must instead meet emission standards specified in 40 CFR parts
90 and 1054. See 40 CFR 90.103(a) and the definition of handheld in 40
CFR 1054.801.
* * * * *

• 156. Section 1051.10 is amended by revising the introductory text to
read as follows:

Sec.  1051.10  How is this part organized?

    This part 1051 is divided into the following subparts:
* * * * *

• 157. Section 1051.15 is amended by redesignating paragraphs (b) and (c)
as paragraphs (c) and (d) and adding a new paragraph (b) to read as
follows:

Sec.  1051.15  Do any other regulation parts apply to me?

* * * * *
    (b) Part 1060 of this chapter describes standards and procedures
that optionally apply for controlling evaporative emissions from
engines fueled by gasoline or other volatile liquid fuels and the
associated fuel systems.
* * * * *

• 158. Section 1051.25 is amended by revising paragraphs (a) and (c) to
read as follows:

Sec.  1051.25  What requirements apply when installing certified
engines in recreational vehicles?

    (a) If you manufacture recreational vehicles with engines certified
under Sec.  1051.20, you must certify your vehicle with respect to the
evaporative emission standards in Sec.  1051.110, but you need

[[Page 59246]]

not certify the vehicle with respect to exhaust emissions under this
part. The vehicle must nevertheless meet all emission standards with
the engine installed. You must also label fuel tanks and fuel lines as
specified in Sec.  1051.135(d).
* * * * *
    (c) If you obscure the engine label while installing the engine in
the vehicle such that the label cannot be read during normal
maintenance, you must place a duplicate label on the vehicle as
described in 40 CFR 1068.105.

Subpart B--[Amended]

• 159. Section 1051.103 is amended by revising paragraphs (b)(1), (b)(2),
and (b)(3) to read as follows:

Sec.  1051.103  What are the exhaust emission standards for snowmobiles?

* * * * *
    (b) * * *
    (1) Natural gas-fueled snowmobiles: NMHC emissions.
    (2) Alcohol-fueled snowmobiles: THCE emissions.
    (3) Other snowmobiles: THC emissions.
* * * * *

• 160. Section 1051.105 is amended by revising paragraphs (b)(1), (b)(2),
and (b)(3) to read as follows:

Sec.  1051.105  What are the exhaust emission standards for off-highway
motorcycles?

* * * * *
    (b) * * *
    (1) Natural gas-fueled off-highway motorcycles: NMHC emissions.
    (2) Alcohol-fueled off-highway motorcycles: THCE emissions.
    (3) Other off-highway motorcycles: THC emissions.
* * * * *
• 161. Section 1051.107 is amended by revising paragraphs (b)(1), (b)(2),
and (b)(3) to read as follows:

Sec.  1051.107  What are the exhaust emission standards for all-terrain
vehicles (ATVs) and offroad utility vehicles?

* * * * *
    (b) * * *
    (1) Natural gas-fueled ATVs: NMHC emissions.
    (2) Alcohol-fueled ATVs: THCE emissions.
    (3) Other ATVs: THC emissions.
* * * * *

• 162. Section 1051.110 is amended by revising the introductory text and
adding paragraph (c) to read as follows:

Sec.  1051.110  What evaporative emission standards must my vehicles meet?

    Your new vehicles that run on a volatile liquid fuel (such as
gasoline) must meet the emission standards of this section over their
full useful life. Note that Sec.  1051.245 allows you to use design-
based certification instead of generating new emission data.
* * * * *
    (c) You may certify your fuel tanks and fuel lines under the
provisions of 40 CFR part 1060. You may also specify in your
application for certification that you are using components that have
been certified by the component manufacturer.

• 163. Section 1051.115 is amended by revising the section heading and
introductory text to read as follows:

Sec.  1051.115  What other requirements apply?

    Vehicles that are required to meet the emission standards of this
part must meet the following requirements:
* * * * *

• 164. Section 1051.120 is amended by revising paragraph (c) to read as
follows:

Sec.  1051.120  What emission-related warranty requirements apply to me?

* * * * *
    (c) Components covered. The emission-related warranty covers all
components whose failure would increase an engine's emissions of any
regulated pollutant, including components listed in 40 CFR part 1068,
Appendix I, and components from any other system you develop to control
emissions. The emission-related warranty covers these components even
if another company produces the component. Your emission-related
warranty does not cover components whose failure would not increase an
engine's emissions of any regulated pollutant.
* * * * *

• 165. Section 1051.125 is amended by revising paragraphs (a)(1)(iii) and
(d) to read as follows:

Sec.  1051.125  What maintenance instructions must I give to buyers?

* * * * *
    (a) * * *
    (1) * * *
    (iii) You provide the maintenance free of charge and clearly say so
in your maintenance instructions.
* * * * *
    (d) Noncritical emission-related maintenance. Subject to the
provisions of this paragraph (d), you may schedule any amount of
emission-related inspection or maintenance that is not covered by
paragraph (a) of this section (i.e., maintenance that is neither
explicitly identified as critical emission-related maintenance, nor
that we approve as critical emission-related maintenance). Noncritical
emission-related maintenance generally includes changing spark plugs,
re-seating valves, or any other emission-related maintenance on the
components we specify in 40 CFR part 1068, Appendix I that is not
covered in paragraph (a) of this section. You must state in the owner's
manual that these steps are not necessary to keep the emission-related
warranty valid. If operators fail to do this maintenance, this does not
allow you to disqualify those vehicles from in-use testing or deny a
warranty claim. Do not take these inspection or maintenance steps
during service accumulation on your emission-data vehicles.
* * * * *

• 166. Section 1051.135 is amended to read as follows:
• a. By revising paragraphs (c)(6), (c)(7), and (c)(8).
• b. By adding a new paragraph (c)(13).
• d. By removing and reserving paragraph (f).

Sec.  1051.135  How must I label and identify the vehicles I produce?

* * * * *
    (c) * * *
    (6) State the date of manufacture [DAY (optional), MONTH, and
YEAR]; however, you may omit this from the label if you stamp, engrave,
or otherwise permanently identify it elsewhere on the vehicle or
engine, in which case you must also describe in your application for
certification where you will identify the date on the vehicle or engine.
    (7) State the exhaust emission standards or FELs to which the
vehicles are certified (in g/km or g/kW-hr). Also, state the FEL that
applies for the fuel tank if it is different than the otherwise
applicable standard.
    (8) Identify the emission-control system. Use terms and
abbreviations as described in 40 CFR 1068.45. You may omit this
information from the label if there is not enough room for it and you
put it in the owner's manual instead.
* * * * *
    (13) Identify evaporative emission controls as specified in 40 CFR
1060.135.
* * * * *

• 167. Section 1051.137 is amended by revising the introductory text to
read as follows:

[[Page 59247]]

Sec.  1051.137  What are the consumer labeling requirements?

    Label every vehicle certified under this part with a removable
hang-tag showing its emission characteristics relative to other models.
The label should be attached securely to the vehicle before it is
offered for sale in such a manner that it would not be accidentally
removed prior to sale. Use the applicable equations of this section to
determine the normalized emission rate (NER) from the FEL for your
vehicle. If the vehicle is certified without a family emission limit
that is different than the otherwise applicable standard, use the final
deteriorated emission level. Round the resulting normalized emission
rate for your vehicle to one decimal place. If the calculated NER value
is less than zero, consider NER to be zero for that vehicle. We may
specify a standardized format for labels. At a minimum, the tag should
include: the manufacturer's name, vehicle model name, engine
description (500 cc two-stroke with DFI), the NER, and a brief
explanation of the scale (for example, note that 0 is the cleanest and
10 is the least clean).
* * * * *

• 168. A new Sec.  1051.140 is added to read as follows:

Sec.  1051.140  What is my vehicle's maximum engine power and displacement?

    This section describes how to quantify your vehicle's maximum
engine power and displacement for the purposes of this part.
    (a) An engine configuration's maximum engine power is the maximum
brake power point on the nominal power curve for the engine
configuration, as defined in this section. Round the power value to the
nearest 0.5 kilowatts. The nominal power curve of an engine
configuration is the relationship between maximum available engine
brake power and engine speed for an engine, using the mapping
procedures of 40 CFR part 1065, based on the manufacturer's design and
production specifications for the engine. This information may also be
expressed by a torque curve that relates maximum available engine
torque with engine speed.
    (b) An engine configuration's displacement is the intended swept
volume of the engine rounded to the nearest cubic centimeter. The swept
volume of the engine is the product of the internal cross-section area
of the cylinders, the stroke length, and the number of cylinders. For
example, for a one-cylinder engine with a circular cylinder having an
internal diameter of 6.00 cm and a 6.25 cm stroke length, the rounded
displacement would be: (1)x(6.00/2) 2 x ([pi]) x (6.25) =
177 cc. Calculate the engine's intended swept volume from the design
specifications for the cylinders using enough significant figures to
allow determination of the displacement to the nearest 0.1 cc.
    (c) The nominal power curve and intended swept volume must be
within the range of the actual power curves and swept volumes of
production engines considering normal production variability. If after
production begins it is determined that either your nominal power curve
or your intended swept volume does not represent production engines, we
may require you to amend your application for certification under Sec. 
1051.225.

• 169. Section 1051.145 is amended by revising paragraphs (b) and (e)(1)
and adding paragraph (i) to read as follows:

Sec.  1051.145  What provisions apply only for a limited time?

* * * * *
    (b) Optional emission standards for ATVs. To meet ATV standards for
model years before 2014, you may apply the exhaust emission standards
by model year in paragraph (b)(1) of this section while measuring
emissions using the engine-based test procedures in 40 CFR part 1065
instead of the chassis-based test procedures in 40 CFR part 86. In
model year 2014 you may apply this provision for exhaust emission
engine families representing up to 50 percent of your U.S.-directed
production volume. This provision is not available in the 2015 or
later-model years. If you certify only one ATV exhaust emission engine
family in the 2014 model year this provision is available for that
family in the 2014 model year.
    (1) Follow Table 1 of this section for exhaust emission standards,
while meeting all the other requirements of Sec.  1051.107. You may use
emission credits to show compliance with these standards (see subpart H
of this part). You may not exchange emission credits with engine
families meeting the standards in Sec.  1051.107(a). You may also not
exchange credits between engine families certified to the standards for
engines above 225 cc and engine families certified to the standards for
engines below 225 cc. The phase-in percentages in the table specify the
percentage of your total U.S.-directed production that must comply with
the emission standards for those model years (i.e., the percentage
requirement does not apply separately for engine families above and
below 225 cc). Table 1 follows:

               Table 1 of Sec.   1051.145--Optional Exhaust Emission Standards for ATVs (g/kW-hr)
----------------------------------------------------------------------------------------------------------------
                                                                        Emission standards            Maximum
                                                                 --------------------------------    allowable
                                                                                                      family
      Engine displacement          Model year        Phase-in                                        emission
                                                                      HC+NOX            CO            limits
                                                                                                 ---------------
                                                                                                      HC+NOX
----------------------------------------------------------------------------------------------------------------
<225 cc.......................  2006............             50%            16.1             400            32.2
                                2007 and later..             100            16.1             400            32.2
>=225 cc......................  2006............              50            13.4             400            26.8
                                2007 and later..             100            13.4             400            26.8
----------------------------------------------------------------------------------------------------------------

    (2) Measure emissions by testing the engine on a dynamometer with
the steady-state duty cycle described in Table 2 of this section.
    (i) During idle mode, hold the speed within your specifications,
keep the throttle fully closed, and keep engine torque under 5 percent
of the peak torque value at maximum test speed.
    (ii) For the full-load operating mode, operate the engine at its
maximum fueling rate.
    (iii) See part 1065 of this chapter for detailed specifications of
tolerances and calculations.
    (iv) Table 2 follows:

[[Page 59248]]

                     Table 2 of Sec.   1051.145--6-Mode Duty Cycle for Recreational Engines
----------------------------------------------------------------------------------------------------------------
                                                                      Torque
                                        Engine speed (percent of    (percent of    Minimum time      Weighting
               Mode No.                    maximum test speed)    maximum torque      in mode         factors
                                                                  at test speed)     (minutes)
----------------------------------------------------------------------------------------------------------------
1.....................................  85......................             100             5.0            0.09
2.....................................  85......................              75             5.0            0.20
3.....................................  85......................              50             5.0            0.29
4.....................................  85......................              25             5.0            0.30
5.....................................  85......................              10             5.0            0.07
6.....................................  Idle....................               0             5.0            0.05
----------------------------------------------------------------------------------------------------------------

    (3) For ATVs certified to the standards in this paragraph (b), use
the following equations to determine the normalized emission rate
required by Sec.  1051.137:

    (i) For engines at or above 225 cc, use the following equation:

NER = 9.898 x log (HC+NOX) -4.898

Where:

HC + NOX is the sum of the cycle-weighted emission rates
for hydrocarbons and oxides of nitrogen in g/kW-hr.

    (ii) For engines below 225 cc, use the following equation:

NER = 9.898 x log [(HC+NOX) x 0.83] -4.898

Where:

HC + NOX is the sum of the cycle-weighted emission rates
for hydrocarbons and oxides of nitrogen in g/kW-hr.
* * * * *
    (e) * * *
    (1) Snowmobile. You may use the raw sampling procedures described
in 40 CFR part 90 or 91 for snowmobiles subject to Phase 1 or Phase 2
standards.
* * * * *
    (i) Delayed compliance with labeling requirements. Before the 2010
model year, you may omit the date of manufacture from the emission
control information label if you keep those records and provide them to
us upon request. Before the 2010 model year, you may also omit the
label information specified for evaporative emission controls.

Subpart C--[Amended]

• 170. Section 1051.201 is amended by revising paragraph (a) to read as
follows:

Sec.  1051.201  What are the general requirements for obtaining a
certificate of conformity?

    (a) You must send us a separate application for a certificate of
conformity for each engine family. A certificate of conformity is valid
starting with the indicated effective date, but it is not valid for any
production after December 31 of the model year for which it is issued.
No certificate will be issued after December 31 of the model year.
* * * * *
• 171. Section 1051.205 is amended by revising paragraphs (b), (o)(1),
(p), (t), and (w) to read as follows:

Sec.  1051.205  What must I include in my application?

* * * * *
    (b) Explain how the emission control systems operate. Describe the
evaporative emission controls. Also describe in detail all system
components for controlling exhaust emissions, including all auxiliary
emission control devices (AECDs) and all fuel-system components you
will install on any production or test vehicle or engine. Identify the
part number of each component you describe. For this paragraph (b),
treat as separate AECDs any devices that modulate or activate
differently from each other. Include sufficient detail to allow us to
evaluate whether the AECDs are consistent with the defeat device
prohibition of Sec.  1051.115.
* * * * *
    (o) * * *
    (1) Present exhaust emission data for hydrocarbons (such as NMHC or
THCE, as applicable), NOX, and CO on an emission-data
vehicle to show your vehicles meet the exhaust emission standards as
specified in subpart B of this part. Show emission figures before and
after applying deterioration factors for each vehicle or engine. If we
specify more than one grade of any fuel type (for example, a summer
grade and winter grade of gasoline), you need to submit test data only
for one grade unless the regulations of this part specify otherwise for
your engine.
* * * * *
    (p) Report all test results, including those from invalid tests or
from any other tests, whether or not they were conducted according to
the test procedures of subpart F of this part. If you measure
CO2, report those emission levels (in g/kW-hr or g/km, as
appropriate). We may ask you to send other information to confirm that
your tests were valid under the requirements of this part and 40 CFR
part 1065.
* * * * *
    (t) Include good-faith estimates of U.S.-directed production
volumes. Include a justification for the estimated production volumes
if they are substantially different than actual production volumes in
earlier years for similar models.
* * * * *
    (w) Name an agent for service located in the United States. Service
on this agent constitutes service on you or any of your officers or
employees for any action by EPA or otherwise by the United States
related to the requirements of this part.

• 172. Section 1051.220 is amended by revising the introductory text and
paragraph (a) to read as follows:

Sec.  1051.220  How do I amend the maintenance instructions in my
application?

    You may amend your emission-related maintenance instructions after
you submit your application for certification as long as the amended
instructions remain consistent with the provisions of Sec.  1051.125.
You must send the Designated Compliance Officer a request to amend your
application for certification for an engine family if you want to
change the emission-related maintenance instructions in a way that
could affect emissions. In your request, describe the proposed changes
to the maintenance instructions. If operators follow the original
maintenance instructions rather than the newly specified maintenance,
this does not allow you to disqualify those engines from in-use testing
or deny a warranty claim.
    (a) If you are decreasing, replacing, or eliminating any specified
maintenance, you may distribute the new maintenance instructions to
your customers 30 days after we receive your request, unless we
disapprove your request. This would generally include

[[Page 59249]]

replacing one maintenance step with another. We may approve a shorter
time or waive this requirement.
* * * * *
• 173. Section 1051.225 is revised to read as follows:

Sec.  1051.225  How do I amend my application for certification to
include new or modified vehicle configurations or to change an FEL?

    Before we issue you a certificate of conformity, you may amend your
application to include new or modified vehicle configurations, subject
to the provisions of this section. After we have issued your
certificate of conformity, you may send us an amended application
requesting that we include new or modified vehicle configurations
within the scope of the certificate, subject to the provisions of this
section. You must amend your application if any changes occur with
respect to any information included in your application.
    (a) You must amend your application before you take any of the
following actions:
    (1) Add a vehicle configuration to an engine family. In this case,
the vehicle configuration added must be consistent with other vehicle
configurations in the engine family with respect to the criteria listed
in Sec.  1051.230.
    (2) Change a vehicle configuration already included in an engine
family in a way that may affect emissions, or change any of the
components you described in your application for certification. This
includes production and design changes that may affect emissions any
time during the engine's lifetime.
    (3) Modify an FEL for an engine family, as described in paragraph
(f) of this section.
    (b) To amend your application for certification, send the
Designated Compliance Officer the following information:
    (1) Describe in detail the addition or change in the vehicle model
or configuration you intend to make.
    (2) Include engineering evaluations or data showing that the
amended engine family complies with all applicable requirements. You
may do this by showing that the original emission-data vehicle is still
appropriate for showing that the amended family complies with all
applicable requirements.
    (3) If the original emission-data vehicle for the engine family is
not appropriate to show compliance for the new or modified vehicle
configuration, include new test data showing that the new or modified
vehicle configuration meets the requirements of this part.
    (c) We may ask for more test data or engineering evaluations. You
must give us these within 30 days after we request them.
    (d) For engine families already covered by a certificate of
conformity, we will determine whether the existing certificate of
conformity covers your new or modified vehicle configuration. You may
ask for a hearing if we deny your request (see Sec.  1051.820).
    (e) For engine families already covered by a certificate of
conformity, you may start producing the new or modified vehicle
configuration anytime after you send us your amended application,
before we make a decision under paragraph (d) of this section. However,
if we determine that the affected vehicles do not meet applicable
requirements, we will notify you to cease production of the vehicles
and may require you to recall the vehicles at no expense to the owner.
Choosing to produce vehicles under this paragraph (e) is deemed to be
consent to recall all vehicles that we determine do not meet applicable
emission standards or other requirements and to remedy the
nonconformity at no expense to the owner. If you do not provide
information required under paragraph (c) of this section within 30 days
after we request it, you must stop producing the new or modified
vehicle configuration.
    (f) You may ask us to approve a change to your FEL in certain cases
after the start of production. The changed FEL may not apply to
vehicles you have already introduced into commerce, except as described
in this paragraph (f). If we approve a changed FEL after the start of
production, you must include the new FEL on the emission control
information label for all vehicles produced after the change. You may
ask us to approve a change to your FEL in the following cases:
    (1) You may ask to raise your FEL for your engine family at any
time. In your request, you must show that you will still be able to
meet the emission standards as specified in subparts B and H of this
part. If you amend your application by submitting new test data to
include a newly added or modified vehicle, as described in paragraph
(b)(3) of this section, use the appropriate FELs with corresponding
production volumes to calculate your average emission level for the
model year, as described in subpart H of this part. In all other
circumstances, you must use the higher FEL for the entire family to
calculate your average emission level under subpart H of this part.
    (2) You may ask to lower the FEL for your engine family only if you
have test data from production engines showing that the engines have
emissions below the proposed lower FEL. The lower FEL applies only to
engines you produce after we approve the new FEL. Use the appropriate
FELs with corresponding production volumes to calculate your average
emission level for the model year, as described in subpart H of this
part.

• 174. Section 1051.230 is amended by revising the paragraphs (a),
(b)(8), and (e)(1) to read as follows:

Sec.  1051.230  How do I select engine families?

    (a) For purposes of certification, divide your product line into
families of vehicles as described in this section. Except as specified
in paragraph (f) of this section, you must have separate engine
families for meeting exhaust and evaporative emissions. Your engine
family is limited to a single model year.
    (b) * * *
    (8) Numerical level of the emission standards that apply to the
vehicle. For example, an engine family may not include vehicles
certified to different family emission limits, though you may change
family emission limits without recertifying as specified in Sec. 
1051.225.
* * * * *
    (e) * * *
    (1) In unusual circumstances, you may group such vehicles in the
same engine family if you show that their emission characteristics
during the useful life will be similar.
* * * * *

• 175. Section 1051.235 is amended by revising paragraphs (c)(4), (d)(1)
introductory text, and (d)(1)(i) to read as follows:

Sec.  1051.235  What emission testing must I perform for my application
for a certificate of conformity?

* * * * *
    (c) * * *
    (4) Before we test one of your vehicles or engines, we may
calibrate it within normal production tolerances for anything we do not
consider an adjustable parameter. For example, this would apply where
we determine that an engine parameter is not an adjustable parameter
(as defined in Sec.  1051.801) but that it is subject to production
variability.
    (d) * * *
    (1) You may ask to use carryover emission data from a previous
model year instead of doing new tests, but only if all the following
are true:
    (i) The engine family from the previous model year differs from the
current engine family only with respect to model year or other
characteristics

[[Page 59250]]

unrelated to emissions. You may also ask to add a configuration subject
to Sec.  1051.225.
* * * * *

• 176. Section 1051.240 is amended by revising paragraphs (a), (b), and
(c)(1) to read as follows:

Sec.  1051.240  How do I demonstrate that my engine family complies
with exhaust emission standards?

    (a) For purposes of certification, your engine family is considered
in compliance with the applicable numerical exhaust emission standards
in subpart B of this part if all emission-data vehicles representing
that family have test results showing deteriorated emission levels at
or below these standards. This includes all test points over the course
of the durability demonstration. (Note: if you participate in the ABT
program in subpart H of this part, your FELs are considered to be the
applicable emission standards with which you must comply.)
    (b) Your engine family is deemed not to comply if any emission-data
vehicle representing that family has test results showing a
deteriorated emission level for any pollutant that is above an
applicable FEL or emission standard. This includes all test points over
the course of the durability demonstration.
    (c) * * *
    (1) For vehicles that use aftertreatment technology, such as
catalytic converters, use a multiplicative deterioration factor for
exhaust emissions. A multiplicative deterioration factor is the ratio
of exhaust emissions at the end of the useful life and exhaust
emissions at the low-hour test point. In these cases, adjust the
official emission results for each tested vehicle or engine at the
selected test point by multiplying the measured emissions by the
deterioration factor. If the factor is less than one, use one.
Multiplicative deterioration factors must be specified to three
significant figures.
* * * * *

• 177. Section 1051.243 is amended by revising the introductory text and
paragraphs (b)(6) and (c)(1) to read as follows:

Sec.  1051.243  How do I determine deterioration factors from exhaust
durability testing?

    This section describes how to determine deterioration factors,
either with pre-existing test data or with new emission measurements.
* * * * *
    (b) * * *
    (6) You may use other testing methods to determine deterioration
factors, consistent with good engineering judgment, as long as we
approve those methods in advance.
    (c) * * *
    (1) If you determine your deterioration factors based on test data
from a different engine family, explain why this is appropriate and
include all the emission measurements on which you base the
deterioration factor.
* * * * *

• 178. Section 1051.245 is amended by revising paragraph (e) to read as
follows:

Sec.  1051.245  How do I demonstrate that my engine family complies
with evaporative emission standards?

* * * * *
    (e) You may demonstrate for certification that your engine family
complies with the evaporative emission standards by demonstrating that
you use the following control technologies:
    (1) For certification to the standards specified in Sec. 
1051.110(a) with the control technologies shown in the following table:

    Table 1 of Sec.   1051.245--Design-certification Technologies for
                       Controlling Tank Permeation
------------------------------------------------------------------------
                                             Then you may design-certify
     If the tank permeability control        with a tank emission level
            technology is . . .                       of . . .
------------------------------------------------------------------------
(i) A metal fuel tank with no non-metal     1.5 g/m2/day.
 gaskets or with gaskets made from a low-
 permeability material.
(ii) A metal fuel tank with non-metal       1.5 g/m2/day.
 gaskets with an exposed surface area of
 1000 mm2 or less.
------------------------------------------------------------------------

    (2) For certification to the standards specified in Sec. 
1051.110(b) with the control technologies shown in the following table:

    Table 2 of Sec.   1051.245--Design-certification Technologies for
                    Controlling Fuel-line Permeation
------------------------------------------------------------------------
                                             Then you may design-certify
   If the fuel-line permeability control     with a fuel line permeation
            technology is . . .                emission level of . . .
------------------------------------------------------------------------
(i) Hose meeting the specifications for     15 g/m2/day.
 Low Emission Fuel Lines as described in
 40 CFR 1048.105.
(ii) Hose meeting the R11-A or R12          15 g/m2/day.
 permeation specifications in SAE J30 as
 described in 40 CFR 1060.810.
------------------------------------------------------------------------

• 179. Section 1051.250 is amended as follows:
• a. By removing paragraph (d).
• b. By redesignating paragraphs (a) through (c) as paragraphs (b)
through (d), respectively.
• c. By adding a new paragraph (a).
• d. By revising the newly redesignated paragraph (c).

Sec.  1051.250  What records must I keep and make available to EPA?

    (a) Send the Designated Compliance Officer information related to
your U.S.-directed production volumes as described in Sec.  1051.345.
In addition, within 45 days after the end of the model year, you must
send us a report describing information about vehicles you produced
during the model year as follows:
    (1) State the total production volume for each engine family that
is not subject to reporting under Sec.  1051.345.
    (2) State the total production volume for any engine family for
which you produce vehicles after completing the reports required in
Sec.  1051.345.
    (3) For production volumes you report under this paragraph (a),
identify whether or not the figures include California sales. Include a
separate count of production volumes for California sales if those
figures are available.
* * * * *
    (c) Keep data from routine emission tests (such as test cell
temperatures and relative humidity readings) for one year after we
issue the associated certificate of conformity. Keep all other
information specified in this section for eight years after we issue
your certificate.
* * * * *

Subpart D--[Amended]

• 180. Section 1051.301 is amended by revising paragraphs (a), (c), (d),
(e), and (h) introductory text to read as follows:

[[Page 59251]]

Sec.  1051.301  When must I test my production-line vehicles or engines?

    (a) If you produce vehicles that are subject to the requirements of
this part, you must test them as described in this subpart, except as
follows:
    (1) Small-volume manufacturers may omit testing under this subpart.
    (2) We may exempt engine families with a projected U.S.-directed
production volume below 150 units from routine testing under this
subpart. Request this exemption in your application for certification
and include your basis for projecting a production volume below 150
units. We will approve your request if we agree that you have made
good-faith estimates of your production volumes. Your exemption is
approved when we grant your certificate. You must promptly notify us if
your actual production exceeds 150 units during the model year. If you
exceed the production limit or if there is evidence of a nonconformity,
we may require you to test production-line engines under this subpart,
or under 40 CFR part 1068, subpart E, even if we have approved an
exemption under this paragraph (a)(2).
* * * * *
    (c) Other regulatory provisions authorize us to suspend, revoke, or
void your certificate of conformity, or order recalls for engine
families, without regard to whether they have passed these production-
line testing requirements. The requirements of this subpart do not
affect our ability to do selective enforcement audits, as described in
part 1068 of this chapter. Individual vehicles and engines in families
that pass these production-line testing requirements must also conform
to all applicable regulations of this part and part 1068 of this chapter.
    (d) You may use alternate programs for testing production-line
vehicles or engines in the following circumstances:
    (1) You may use analyzers and sampling systems that meet the field-
testing requirements of 40 CFR part 1065, subpart J, but not the
otherwise applicable requirements in 40 CFR part 1065 for laboratory
testing, to demonstrate compliance with emission standards if you
double the minimum sampling rate specified in Sec.  1054.310(b). Use
measured test results to determine whether vehicles or engines comply
with applicable standards without applying a measurement allowance.
This alternate program does not require prior approval but we may
disallow use of this option where we determine that use of field-grade
equipment would prevent you from being able to demonstrate that your
vehicles or engines are being produced to conform to the specifications
in your application for certification.
    (2) You may ask to use another alternate program for testing
production-line vehicles or engines. In your request, you must show us
that the alternate program gives equal assurance that your products
meet the requirements of this part. We may waive some or all of this
subpart's requirements if we approve your alternate approach. For
example, in certain circumstances you may be able to give us equal
assurance that your products meet the requirements of this part by
using less rigorous measurement methods if you offset that by
increasing the number of test vehicles or engines.
    (e) If you certify an engine family with carryover emission data,
as described in Sec.  1051.235(d), and these equivalent engine families
consistently pass the production-line testing requirements over the
preceding two-year period, you may ask for a reduced testing rate for
further production-line testing for that family. The minimum testing
rate is one vehicle or engine per engine family. If we reduce your
testing rate, we may limit our approval to any number of model years.
In determining whether to approve your request, we may consider the
number of vehicles or engines that have failed the emission tests.
* * * * *
    (h) Vehicles certified to the following standards are exempt from
the production-line testing requirements of this subpart if no engine
families in the averaging set have family emission limits that are
different than the otherwise applicable standard:
* * * * *

• 181. Section 1051.305 is amended by adding introductory text and
revising paragraphs (d) and (g) to read as follows:

Sec.  1051.305  How must I prepare and test my production-line vehicles
or engines?

    This section describes how to prepare and test production-line
vehicles or engines. Test the engine if your vehicle is certified to g/
kW-hr standards; otherwise test the vehicle. You must assemble the test
vehicle or engine in a way that represents the assembly procedures for
other vehicles or engines in the engine family. You must ask us to
approve any deviations from your normal assembly procedures for other
production vehicles or engines in the engine family.
* * * * *
    (d) Setting adjustable parameters. Before any test, we may require
you to adjust any adjustable parameter to any setting within its
physically adjustable range.
    (1) We may require you to adjust idle speed outside the physically
adjustable range as needed, but only until the vehicle or engine has
stabilized emission levels (see paragraph (e) of this section). We may
ask you for information needed to establish an alternate minimum idle
speed.
    (2) We may specify adjustments within the physically adjustable
range by considering their effect on emission levels. We may also
consider how likely it is that someone will make such an adjustment
with in-use vehicles.
    (3) We may specify an air-fuel ratio within the adjustable range
specified in Sec.  1051.115(d).
* * * * *
    (g) Retesting after invalid tests. You may retest a vehicle or
engine if you determine an emission test is invalid under subpart F of
this part. Explain in your written report reasons for invalidating any
test and the emission results from all tests. If we determine that you
improperly invalidated a test, we may require you to ask for our
approval for future testing before substituting results of the new
tests for invalid ones.

• 182. Section 1051.310 is amended by revising paragraphs (a), (b), (c)
introductory text, (c)(2), (f), (g), and (h) to read as follows:


Sec.  1051.310  How must I select vehicles or engines for production-
line testing?

    (a) Test engines from each engine family as described in this
section based on test periods, as follows:
    (1) For engine families with projected U.S.-directed production
volume of at least 1,600, the test periods are consecutive quarters (3
months). However, if your annual production period is less than 12
months long, you may take the following alternative approach to define
quarterly test periods:
    (i) If your annual production period is 120 days or less, the whole
model year constitutes a single test period.
    (ii) If your annual production period is 121 to 210 days, divide
the annual production period evenly into two test periods.
    (iii) If your annual production period is 211 to 300 days, divide
the annual production period evenly into three test periods.
    (iv) If your annual production period is 301 days or longer, divide
the annual production period evenly into four test periods.
    (2) For engine families with projected U.S.-directed production
volume below

[[Page 59252]]

1,600, the whole model year constitutes a single test period.
    (b) Early in each test period, randomly select and test an engine
from the end of the assembly line for each engine family.
    (1) In the first test period for newly certified engines, randomly
select and test one more engine. Then, calculate the required sample
size for the model year as described in paragraph (c) of this section.
    (2) In later test periods of the same model year, combine the new
test result with all previous testing in the model year. Then,
calculate the required sample size for the model year as described in
paragraph (c) of this section.
    (3) In the first test period for engine families relying on
previously submitted test data, combine the new test result with the
last test result from the previous model year. Then, calculate the
required sample size for the model year as described in paragraph (c)
of this section. Use the last test result from the previous model year
only for this first calculation. For all subsequent calculations, use
only results from the current model year.
    (c) Calculate the required sample size for each engine family.
Separately calculate this figure for HC, NOX (or HC +
NOX), and CO. The required sample size is the greater of
these calculated values. Use the following equation:
[GRAPHIC] [TIFF OMITTED] TR08OC08.093

Where:

N = Required sample size for the model year.
t95 = 95% confidence coefficient, which depends on the
number of tests completed, n, as specified in the table in paragraph
(c)(1) of this section. It defines 95% confidence intervals for a
one-tail distribution.
[sigma] = Test sample standard deviation (see paragraph (c)(2) of
this section).
x = Mean of emission test results of the sample.
STD = Emission standard (or family emission limit, if applicable).
* * * * *

    (2) Calculate the standard deviation, [sigma], for the test sample
using the following formula:
[GRAPHIC] [TIFF OMITTED] TR08OC08.094

Where:

Xi = Emission test result for an individual vehicle or
engine.
n = The number of tests completed in an engine family.
* * * * *
    (f) Distribute the remaining tests evenly throughout the rest of
the year. You may need to adjust your schedule for selecting vehicles
or engines if the required sample size changes. If your scheduled
quarterly testing for the remainder of the model year is sufficient to
meet the calculated sample size, you may wait until the next quarter to
do additional testing. Continue to randomly select vehicles or engines
from each engine family.
    (g) Continue testing until one of the following things happens:
    (1) After completing the minimum number of tests required in
paragraph (b) of this section, the number of tests completed in an
engine family, n, is greater than the required sample size, N, and the
sample mean, x, is less than or equal to the emission standard. For
example, if N = 5.1 after the fifth test, the sample-size calculation
does not allow you to stop testing.
    (2) The engine family does not comply according to Sec.  1051.315.
    (3) You test 30 vehicles or engines from the engine family.
    (4) You test one percent of your projected annual U.S.-directed
production volume for the engine family, rounded to the nearest whole
number. Do not count a vehicle or engine under this paragraph (g)(4) if
it fails to meet an applicable emission standard.
    (5) You choose to declare that the engine family does not comply
with the requirements of this subpart.
    (h) If the sample-size calculation allows you to stop testing for
one pollutant but not another, you must continue measuring emission
levels of all pollutants for any additional tests required under this
section. However, you need not continue making the calculations
specified in this subpart for the pollutant for which testing is not
required. This paragraph (h) does not affect the number of tests
required under this section, the required calculations in Sec. 
1051.315, or the remedial steps required under Sec.  1051.320.
* * * * *

• 183. Section 1051.315 is amended by revising paragraphs (a), (b), and
(g) to read as follows:

Sec.  1051.315  How do I know when my engine family fails the
production-line testing requirements?

* * * * *
    (a) Calculate your test results as follows:
    (1) Initial and final test results. Calculate and round the test
results for each vehicle or engine. If you do several tests on a
vehicle or engine, calculate the initial results for each test, then
add all the test results together and divide by the number of tests.
Round this final calculated value for the final test results on that
vehicle or engine.
    (2) Final deteriorated test results. Apply the deterioration factor
for the engine family to the final test results (see Sec.  1051.240(c)).
    (3) Round deteriorated test results. Round the results to the
number of decimal places in the emission standard expressed to one more
decimal place.
    (b) Construct the following CumSum Equation for each engine family
for HC, NOX (HC + NOX), and CO emissions:

Ci = Max [0 or Ci-1 + Xi-(STD + 0.25 x [sigma])]

Where:

Ci = The current CumSum statistic.
Ci-1 = The previous CumSum statistic. For the first test,
the CumSum statistic is 0 (i.e., C1 = 0).
Xi = The current emission test result for an individual
vehicle or engine.
STD = Emission standard (or family emission limit, if applicable).
* * * * *
    (g) If the CumSum statistic exceeds the Action Limit in two
consecutive tests, the engine family fails the production-line testing
requirements of this subpart. Tell us within ten working days if this
happens. You may request to amend the application for certification to
raise the FEL of the engine family as described in Sec.  1051.225(f).
* * * * *

• 184. Section 1051.320 is amended by revising paragraph (a)(2) to read
as follows:

Sec.  1051.320  What happens if one of my production-line vehicles or
engines fails to meet emission standards?

    (a) * * *
    (2) Include the test results and describe the remedy for each
engine in the written report required under Sec.  1051.345.
* * * * *

• 185. Section 1051.325 is amended by revising the section heading and
paragraphs (c) and (e) to read as follows:

Sec.  1051.325  What happens if an engine family fails the production-
line testing requirements?

* * * * *
    (c) Up to 15 days after we suspend the certificate for an engine
family, you may ask for a hearing (see Sec.  1051.820). If we agree
before a hearing occurs that we used erroneous information in deciding

[[Page 59253]]

to suspend the certificate, we will reinstate the certificate.
* * * * *
    (e) You may request to amend the application for certification to
raise the FEL of the engine family before or after we suspend your
certificate as described in Sec.  1051.225(f). We will approve your
request if it is clear that you used good engineering judgment in
establishing the original FEL.

• 186. Section 1051.345 is amended as follows:
• a. By removing the introductory text.
• b. By revising paragraphs (a)(4), (a)(6), and (a)(8).
• c. By revising paragraphs (b) and (c).

Sec.  1051.345  What production-line testing records must I send to EPA?

    (a) * * *
    (4) Describe each test vehicle or engine, including the engine
family's identification and the vehicle's model year, build date, model
number, identification number, and number of hours of operation before
testing.
* * * * *
    (6) Provide the test number; the date, time and duration of
testing; test procedure; all initial test results; final test results;
and final deteriorated test results for all tests. Provide the emission
results for all measured pollutants. Include information for both valid
and invalid tests and the reason for any invalidation.
* * * * *
    (8) Provide the CumSum analysis required in Sec.  1051.315 and the
sample-size calculation required in Sec.  1051.310 for each engine family.
* * * * *
    (b) We may ask you to add information to your written report, so we
can determine whether your new vehicles conform with the requirements
of this subpart. We may also ask you to send less information.
    (c) An authorized representative of your company must sign the
following statement: We submit this report under Sections 208 and 213
of the Clean Air Act. Our production-line testing conformed completely
with the requirements of 40 CFR part 1051. We have not changed
production processes or quality-control procedures for test engines (or
vehicles) in a way that might affect emission controls. All the
information in this report is true and accurate, to the best of my
knowledge. I know of the penalties for violating the Clean Air Act and
the regulations. (Authorized Company Representative)
* * * * *

• 187. Section 1051.350 is amended by revising paragraphs (b), (e), and
(f) to read as follows:

Sec.  1051.350  What records must I keep?

* * * * *
    (b) Keep paper or electronic records of your production-line
testing for eight years after you complete all the testing required for
an engine family in a model year.
* * * * *
    (e) If we ask, you must give us projected or actual production
figures for an engine family. We may ask you to divide your production
figures by maximum engine power, displacement, fuel type, or assembly
plant (if you produce vehicles or engines at more than one plant).
    (f) Keep records of the vehicle or engine identification number for
each vehicle or engine you produce under each certificate of
conformity. You may identify these numbers as a range. Give us these
records within 30 days if we ask for them.
* * * * *

Subpart F--[Amended]

• 188. Section 1051.501 is amended as follows:
• a. By revising paragraphs (c)(2) and (d).
• b. By redesignating paragraphs (e) and (f) as paragraphs (g) and (h).
• c. By adding a new paragraph (e).
• d. By reserving paragraph (f).

Sec.  1051.501  What procedures must I use to test my vehicles or engines?

* * * * *
    (c) * * *
    (2) Prior to permeation testing of fuel hose, the hose must be
preconditioned by filling the hose with the fuel specified in paragraph
(d)(3) of this section, sealing the openings, and soaking the hose for
4 weeks at 23 &plusmn; 5 [deg]C. To measure fuel-line permeation
emissions, use the equipment and procedures specified in SAE J30 as
described in 40 CFR 1060.810. The measurements must be performed at 23
&plusmn; 2 [deg]C using the fuel specified in paragraph (d)(3) of
this section.
    (d) Fuels. Use the fuels meeting the following specifications:
    (1) Exhaust. Use the fuels and lubricants specified in 40 CFR part
1065, subpart H, for all the exhaust testing we require in this part.
For service accumulation, use the test fuel or any commercially
available fuel that is representative of the fuel that in-use engines
will use. The following provisions apply for using specific fuel types:
    (i) For gasoline-fueled engines, use the grade of gasoline
specified for general testing.
    (ii) For diesel-fueled engines, use either low-sulfur diesel fuel
or ultra low-sulfur diesel fuel meeting the specifications in 40 CFR
1065.703. If you use sulfur-sensitive technology as defined in 40 CFR
1039.801 and you measure emissions using ultra low-sulfur diesel fuel,
you must add a permanent label near the fuel inlet with the following
statement: ``ULTRA LOW SULFUR FUEL ONLY''.
    (2) Fuel Tank Permeation. (i) For the preconditioning soak
described in Sec.  1051.515(a)(1) and fuel slosh durability test
described in Sec.  1051.515(d)(3), use the fuel specified in Table 1 of
40 CFR 1065.710 blended with 10 percent ethanol by volume. As an
alternative, you may use Fuel CE10, which is Fuel C as specified in
ASTM D 471-98 (see 40 CFR 1060.810) blended with 10 percent ethanol by
volume.
    (ii) For the permeation measurement test in Sec.  1051.515(b), use
the fuel specified in Table 1 of 40 CFR 1065.710. As an alternative,
you may use the fuel specified in paragraph (d)(2)(i) of this section.
    (3) Fuel Hose Permeation. Use the fuel specified in Table 1 of 40
CFR 1065.710 blended with 10 percent ethanol by volume for permeation
testing of fuel lines. As an alternative, you may use Fuel CE10, which
is Fuel C as specified in ASTM D 471-98 (see 40 CFR 1060.810) blended
with 10 percent ethanol by volume.
    (e) Engine stabilization. Instead of the provisions of 40 CFR
1065.405, you may consider emission levels stable without measurement
after 12 hours of engine operation.
    (f) [Reserved]
* * * * *

• 189. Section 1051.505 is amended by revising paragraphs (a) and (b) to
read as follows:

Sec.  1051.505  What special provisions apply for testing snowmobiles?

* * * * *
    (a) You may perform steady-state testing with either discrete-mode
or ramped-modal cycles. You must use the type of testing you select in
your application for certification for all testing you perform for that
engine family. If we test your engines to confirm that they meet
emission standards, we will do testing the same way. If you submit
certification test data collected with both discrete-mode and ramped-
modal testing (either in your original application or in an amendment
to your application), either method may

[[Page 59254]]

be used for subsequent testing. We may also perform other testing as
allowed by the Clean Air Act. Measure steady-state emissions as
follows:
    (1) For discrete-mode testing, sample emissions separately for each
mode, then calculate an average emission level for the whole cycle
using the weighting factors specified for each mode. In each mode,
operate the engine for at least 5 minutes, then sample emissions for at
least 1 minute. Calculate cycle statistics and compare with the
established criteria as specified in 40 CFR 1065.514 to confirm that
the test is valid.
    (2) For ramped-modal testing, start sampling at the beginning of
the first mode and continue sampling until the end of the last mode.
Calculate emissions and cycle statistics the same as for transient
testing as specified in 40 CFR part 1065, subpart G.
    (3) Measure emissions by testing the engine on a dynamometer with
one or more of the following sets of duty cycles to determine whether
it meets the steady-state emission standards in Sec.  1051.103:
    (i) The following duty cycle applies for discrete-mode testing:

                          Table 1 of Sec.   1051.505--5-Mode Duty Cycle for Snowmobiles
----------------------------------------------------------------------------------------------------------------
                                                                                          Minimum
                                                                 Speed        Torque      time in     Weighting
                          Mode No.                             (percent)    (percent)       mode       factors
                                                                  \1\          \2\       (minutes)
----------------------------------------------------------------------------------------------------------------
1...........................................................          100          100          3.0         0.12
2...........................................................           85           51          3.0         0.27
3...........................................................           75           33          3.0         0.25
4...........................................................           65           19          3.0         0.31
5...........................................................         Idle            0          3.0        0.05
----------------------------------------------------------------------------------------------------------------
\1\ Percent speed is percent of maximum test speed.
\2\ Percent torque is percent of maximum torque at maximum test speed.

    (ii) The following duty cycle applies for ramped-modal testing:

                     Table 2 of Sec.   1051.505--Ramped-modal Cycle for Testing Snowmobiles
----------------------------------------------------------------------------------------------------------------
                                             Time in
                 RMC mode                      mode         Speed (percent) \1\       Torque (percent) \2,\ \3\
----------------------------------------------------------------------------------------------------------------
1a Steady-state..........................           27  Warm Idle..................  0
1b Transition............................           20  Linear Transition..........  Linear Transition
2a Steady-state..........................          121  100........................  100
2b Transition............................           20  Linear Transition..........  Linear Transition
3a Steady-state..........................          347  65.........................  19
3b Transition............................           20  Linear Transition..........  Linear Transition
4a Steady-state..........................          305  85.........................  51
4b Transition............................           20  Linear Transition..........  Linear Transition
5a Steady-state..........................          272  75.........................  33
5b Transition............................           20  Linear Transition..........  Linear Transition
6 Steady-state...........................           28  Warm Idle..................  0
----------------------------------------------------------------------------------------------------------------
\1\ Percent speed is percent of maximum test speed.
\2\ Advance from one mode to the next within a 20-second transition phase. During the transition phase, command
  a linear progression from the torque setting of the current mode to the torque setting of the next mode.
\3\ Percent torque is percent of maximum torque at maximum test speed.

    (b) During idle mode, operate the engine at its warm idle speed as
described in 40 CFR 1065.510.
* * * * *

Subpart G--[Amended]

• 190. Section 1051.605 is amended by revising the section heading and
paragraph (d)(7)(ii) to read as follows:

Sec.  1051.605  What provisions apply to engines already certified
under the motor vehicle program or the Large Spark-ignition program?

* * * * *
    (d) * * *
    (7) * * *
    (ii) List the engine or vehicle models you expect to produce under
this exemption in the coming year and describe your basis for meeting
the sales restrictions of paragraph (d)(3) of this section.
* * * * *

• 191. Section 1051.610 is amended by revising the section heading and
paragraphs (d)(7)(ii) and (g) to read as follows:

Sec.  1051.610  What provisions apply to vehicles already certified
under the motor vehicle program?

* * * * *
    (d) * * *
    (7) * * *
    (ii) List the vehicle models you expect to produce under this
exemption in the coming year and describe your basis for meeting the
sales restrictions of paragraph (d)(3) of this section.
* * * * *
    (g) Participation in averaging, banking and trading. Vehicles
adapted for recreational use under this section may not generate or use
emission credits under this part 1051. These vehicles may generate
credits under the ABT provisions in 40 CFR part 86. These vehicles must
use emission credits under 40 CFR part 86 if they are certified to an
FEL that exceeds an emission standard that applies.

• 192. Section 1051.615 is amended by revising paragraphs (d)
introductory text, (d)(3), and (d)(4) to read as follows:

[[Page 59255]]

Sec.  1051.615  What are the special provisions for certifying small
recreational engines?

* * * * *
    (d) Measure steady-state emissions by testing the engine on an
engine dynamometer using the equipment and procedures of 40 CFR part
1065 with either discrete-mode or ramped-modal cycles. You must use the
type of testing you select in your application for certification for
all testing you perform for that engine family. If we test your engines
to confirm that they meet emission standards, we will do testing the
same way. If you submit certification test data collected with both
discrete-mode and ramped-modal testing (either in your original
application or in an amendment to your application), either method may
be used for subsequent testing. We may also perform other testing as
allowed by the Clean Air Act. Measure steady-state emissions as follows:
* * * * *
    (3) Measure emissions by testing the engine on a dynamometer with
one or more of the following sets of duty cycles to determine whether
it meets applicable emission standards:
    (i) The following duty cycle applies for discrete-mode testing:

                     Table 1 of Sec.   1051.615--6-Mode Duty Cycle for Recreational Engines
----------------------------------------------------------------------------------------------------------------
                                                                 Engine                   Minimum
                                                                 speed        Torque      time in     Weighting
                          Mode No.                             (percent)    (percent)       mode       factors
                                                                  \1\          \2\       (minutes)
----------------------------------------------------------------------------------------------------------------
1...........................................................           85          100          5.0         0.09
2...........................................................           85           75          5.0         0.20
3...........................................................           85           50          5.0         0.29
4...........................................................           85           25          5.0         0.30
5...........................................................           85           10          5.0         0.07
6...........................................................         Idle            0          5.0         0.05
----------------------------------------------------------------------------------------------------------------
\1\ Percent speed is percent of maximum test speed.
\2\ Percent torque is percent of maximum torque at the commanded test speed.

    (ii) The following duty cycle applies for ramped-modal testing:

                 Table 2 of Sec.   1051.615--Ramped-modal Cycle for Testing Recreational Engines
----------------------------------------------------------------------------------------------------------------
                 RMC mode                      Time       Speed (percent) \1,\ \2\    Torque (percent) \2,\ \3\
----------------------------------------------------------------------------------------------------------------
1a Steady-state..........................           41  Warm Idle..................  0.
1b Transition............................           20  Linear Transition..........  Linear Transition.
2a Steady-state..........................          135  85.........................  100.
2b Transition............................           20  85.........................  Linear Transition.
3a Steady-state..........................          112  85.........................  10.
3b Transition............................           20  85.........................  Linear Transition.
4a Steady-state..........................          337  85.........................  75.
4b Transition............................           20  85.........................  Linear Transition.
5a Steady-state..........................          518  85.........................  25.
5b Transition............................           20  85.........................  Linear Transition.
6a Steady-state..........................          494  85.........................  50.
6b Transition............................           20  Linear Transition..........  Linear Transition.
7 Steady-state...........................           43  Warm Idle..................  0.
----------------------------------------------------------------------------------------------------------------
\1\ Percent speed is percent of maximum test speed.
\2\ Advance from one mode to the next within a 20-second transition phase. During the transition phase, command
  a linear progression from the torque setting of the current mode to the torque setting of the next mode.
\3\ Percent torque is percent of maximum torque at the commanded test speed.

    (4) During idle mode, operate the engine at its warm idle speed as
described in 40 CFR 1065.510.
* * * * *

• 193. Section 1051.635 is amended by revising paragraph (a) to read as
follows:

Sec.  1051.635  What provisions apply to new manufacturers that are
small businesses?

    (a) If you are a small business (as defined by the Small Business
Administration at 13 CFR 121.201) that manufactures recreational
vehicles, but does not otherwise qualify for the small-volume
manufacturer provisions of this part, you may ask us to designate you
to be a small-volume manufacturer. You may do this whether you began
manufacturing recreational vehicles before, during, or after 2002.
* * * * *

• 194. Section 1051.645 is amended by revising paragraph (b) to read as
follows:

Sec.  1051.645  What special provisions apply to branded engines?

* * * * *
    (b) In your application for certification, identify the company
whose trademark you will use.
* * * * *

• 195. A new Sec.  1051.650 is added to subpart G to read as follows:

Sec.  1051.650  What special provisions apply for converting a vehicle
to use an alternate fuel?

    A certificate of conformity is no longer valid for a vehicle if the
vehicle is modified such that it is not in a configuration covered by
the certificate. This section applies if such modifications are done to
convert the vehicle to run on a different fuel type. Such vehicles may
be recertified as specified in this section if the original

[[Page 59256]]

certificate is no longer valid for that vehicle.
    (a) Converting a certified new vehicle to run on a different fuel
type violates 40 CFR 1068.101(a)(1) if the modified vehicle is not
covered by a certificate of conformity.
    (b) Converting a certified vehicle that is not new to run on a
different fuel type violates 40 CFR 1068.101(b)(1) if the modified
vehicle is not covered by a certificate of conformity. We may specify
alternate certification provisions consistent with the requirements of
this part. For example, you may certify the modified vehicle for a
partial useful life. For example, if the vehicle is modified halfway
through its original useful life period, you may generally certify the
vehicle based on completing the original useful life period; or if the
vehicle is modified after the original useful life period is past, you
may generally certify the vehicle based on testing that does not
involve further durability demonstration.
    (c) Vehicles (or engines) may be certified using the certification
procedures for new vehicles (or engines) as specified in this part or
using the certification procedures for aftermarket parts as specified
in 40 CFR part 85, subpart V. Unless the original vehicle manufacturer
continues to be responsible for the vehicle as specified in paragraph
(d) of this section, you must remove the original manufacturer's
emission control information label if you recertify the vehicle.
    (d) The original vehicle manufacturer is not responsible for
operation of modified vehicles in configurations resulting from
modifications performed by others. In cases where the modification
allows a vehicle to be operated in either its original configuration or
a modified configuration, the original vehicle manufacturer remains
responsible for operation of the modified vehicle in its original
configuration.
    (e) Entities producing conversion kits may obtain certificates of
conformity for the converted vehicles. Such entities are vehicle
manufacturers for purposes of this part.

Subpart H--[Amended]

• 196. Section 1051.701 is amended by revising paragraph (a) to read as
follows:

Sec.  1051.701  General provisions.

    (a) You may average, bank, and trade emission credits for purposes
of certification as described in this subpart to show compliance with
the standards of this part. To do this you must certify your engines to
Family Emission Limits (FELs) and show that your average emission
levels for all your engine families together are below the emission
standards in subpart B of this part, or that you have sufficient
credits to offset a credit deficit for the model year (as calculated in
Sec.  1051.720).
* * * * *

• 197. Section 1051.710 is amended by revising paragraphs (d) and (e) and
removing paragraph (f) to read as follows:

Sec.  1051.710  How do I generate and bank emission credits?

* * * * *
    (d) You may designate any emission credits you plan to bank in the
reports you submit under Sec.  1051.730. During the model year and
before the due date for the final report, you may designate your
reserved emission credits for averaging or trading.
    (e) Reserved credits become actual emission credits when you submit
your final report. However, we may revoke these emission credits if we
are unable to verify them after reviewing your reports or auditing your
records.

• 198. Section 1051.715 is amended by revising paragraph (b) and removing
and reserving paragraph (c) to read as follows:

Sec.  1051.715  How do I trade emission credits?

* * * * *
    (b) You may trade actual emission credits as described in this
subpart. You may also trade reserved emission credits, but we may
revoke these emission credits based on our review of your records or
reports or those of the company with which you traded emission credits.
You may trade banked credits within an averaging set to any certifying
manufacturer.
    (c) [Reserved]
* * * * *

• 199. Section 1051.720 is amended by revising paragraph (a)(2) to read
as follows:

Sec.  1051.720  How do I calculate my average emission level or
emission credits?

    (a) * * *
    (2) For vehicles that have standards expressed as g/kW-hr and a
useful life in kilometers, convert the useful life to kW-hr based on
the maximum engine power and an assumed vehicle speed of 30 km/hr as
follows: UL (kW-hr) = UL (km) x Maximum Engine Power (kW) / 30 km/hr.
(Note: It is not necessary to include a load factor, since credit
exchange is not allowed between vehicles certified to g/kW-hr standards
and vehicles certified to g/km standards.)
* * * * *

• 200. Section 1051.725 is amended by revising paragraph (b)(2) to read
as follows:

Sec.  1051.725  What must I include in my applications for
certification?

* * * * *
    (b) * * *
    (2) Detailed calculations of projected emission credits (positive
or negative) based on projected production volumes. We may require you
to include similar calculations from your other engine families to
demonstrate that you will be able to avoid a negative credit balance
for the model year. If you project negative emission credits for an
engine family, state the source of positive emission credits you expect
to use to offset the negative emission credits.

• 201. Section 1051.730 is amended by revising paragraphs (b)(3), (b)(4),
(b)(5), (c)(2), and (f) to read as follows:

Sec.  1051.730  What ABT reports must I send to EPA?

* * * * *
    (b) * * *
    (3) The FEL for each pollutant. If you change the FEL after the
start of production, identify the date that you started using the new
FEL and/or give the vehicle identification number for the first vehicle
covered by the new FEL. In this case, identify each applicable FEL and
calculate the positive or negative emission credits under each FEL.
    (4) The projected and actual production volumes for the model year
with a point of retail sale in the United States, as described in Sec. 
1051.701(d). For fuel tanks, state the production volume in terms of
surface area and production volume for each tank configuration and
state the total surface area for the emission family. If you changed an
FEL during the model year, identify the actual production volume
associated with each FEL.
    (5) For vehicles that have standards expressed as g/kW-hr, maximum
engine power for each vehicle configuration, and the average engine
power weighted by U.S.-directed production volumes for the engine family.
* * * * *
    (c) * * *
    (2) State whether you will retain any emission credits for banking.
* * * * *
    (f) Correct errors in your end-of-year report or final report as
follows:
    (1) You may correct any errors in your end-of-year report when you
prepare the final report as long as you send us the final report by the
time it is due.

[[Page 59257]]

    (2) If you or we determine within 270 days after the end of the
model year that errors mistakenly decreased your balance of emission
credits, you may correct the errors and recalculate the balance of
emission credits. You may not make these corrections for errors that
are determined more than 270 days after the end of the model year. If
you report a negative balance of emission credits, we may disallow
corrections under this paragraph (f)(2).
    (3) If you or we determine anytime that errors mistakenly increased
your balance of emission credits, you must correct the errors and
recalculate the balance of emission credits.

• 202. Section 1051.735 is amended by revising paragraphs (b), (d), and
(e) to read as follows:

Sec.  1051.735  What records must I keep?

* * * * *
    (b) Keep the records required by this section for at least eight
years after the due date for the end-of-year report. You may not use
emission credits on any engines if you do not keep all the records
required under this section. You must therefore keep these records to
continue to bank valid credits. Store these records in any format and
on any media as long as you can promptly send us organized, written
records in English if we ask for them. You must keep these records
readily available. We may review them at any time.
* * * * *
    (d) Keep records of the identification number for each vehicle or
engine or piece of equipment you produce that generates or uses
emission credits under the ABT program. You may identify these numbers
as a range.
    (e) We may require you to keep additional records or to send us
relevant information not required by this section in accordance with
the Clean Air Act.

• 203. Section 1051.740 is amended by revising paragraph (b)(4)(ii) to
read as follows:

Sec.  1051.740  Are there special averaging provisions for snowmobiles?

* * * * *
    (b) * * *
    (4) * * *
    (ii) HC and CO credits for Phase 3 are calculated relative to 75 g/
kW-hr and 200 g/kW-hr values, respectively.
* * * * *

Subpart I--[Amended]

• 204. Section 1051.801 is amended as follows:
• a. By removing the definitions for ``Maximum test power'' and ``Maximum
test torque''.
• b. By revising the definitions for ``Aftertreatment'', ``Designated
Compliance Officer'', ``Emission-control system'', ``Engine
configuration'', ``Maximum engine power'', ``Model year'', ``New'',
``Nonmethane hydrocarbon'', ``Official emission result'', ``Owners
manual'', ``Recreational'', ``Total hydrocarbon'', and ``Total
hydrocarbon equivalent''.
• c. By adding definitions for ``Alcohol-fueled'', ``Days'', ``Low-
permeability material'', and ``Volatile liquid fuel'' in alphabetical order.

Sec.  1051.801  What definitions apply to this part?

* * * * *
    Aftertreatment means relating to a catalytic converter, particulate
filter, or any other system, component, or technology mounted
downstream of the exhaust valve (or exhaust port) whose design function
is to decrease emissions in the engine exhaust before it is exhausted
to the environment. Exhaust-gas recirculation (EGR), turbochargers, and
oxygen sensors are not aftertreatment.
    Alcohol-fueled means relating to a vehicle with an engine that is
designed to run using an alcohol fuel. For purposes of this definition,
alcohol fuels do not include fuels with a nominal alcohol content below
25 percent by volume.
* * * * *
    Days means calendar days unless otherwise specified. For example,
where we specify working days, we mean calendar days excluding weekends
and U.S. national holidays.
    Designated Compliance Officer means the Manager, Light-Duty Engine
Group, U.S. Environmental Protection Agency, 2000 Traverwood Drive, Ann
Arbor, MI 48105.
* * * * *
    Emission-control system means any device, system, or element of
design that controls or reduces the emissions of regulated pollutants
from an engine.
* * * * *
    Engine configuration means a unique combination of engine hardware
and calibration within an engine family. Engines within a single engine
configuration differ only with respect to normal production variability
or factors unrelated to emissions.
* * * * *
    Low-permeability material has the meaning given in 40 CFR 1060.801.
* * * * *
    Maximum engine power has the meaning given in 40 CFR 90.3 for 2010
and earlier model years and in Sec.  1051.140 for 2011 and later model
years. Note that maximum engine power is based on the engine alone,
without regard to any governing or other restrictions from the vehicle
installation.
* * * * *
    Model year means one of the following things:
    (1) For freshly manufactured vehicles (see definition of ``new,''
paragraph (1)), model year means one of the following:
    (i) Calendar year.
    (ii) Your annual new model production period if it is different
than the calendar year. This must include January 1 of the calendar
year for which the model year is named. It may not begin before January
2 of the previous calendar year and it must end by December 31 of the
named calendar year. For seasonal production periods not including
January 1, model year means the calendar year in which the production
occurs, unless you choose to certify the applicable emission family
with the following model year. For example, if your production period
is June 1, 2010, through November 30, 2010, your model year would be
2010 unless you choose to certify the emission family for model year
2011.
    (2) For an engine originally certified and manufactured as a motor
vehicle engine or a stationary engine that is later used or intended to
be used in a vehicle subject to the standards and requirements of this
part 1051, model year means the calendar year in which the engine was
originally produced. For an engine originally manufactured as a motor
vehicle engine or a stationary engine without having been certified
that is later used or intended to be used in a vehicle subject to the
standards and requirements of this part 1051, model year means the
calendar year in which the engine becomes subject to this part 1051.
(See definition of ``new,'' paragraph (2)).
    (3) For a nonroad engine that has been previously placed into
service in an application covered by 40 CFR part 90, 91, 1048, or 1054,
where that engine is installed in a piece of equipment that is covered
by this part 1051, model year means the calendar year in which the
engine was originally produced (see definition of ``new,'' paragraph
(3)).
    (4) For engines that are not freshly manufactured but are installed
in new recreational vehicles, model year means the calendar year in
which the engine is installed in the recreational vehicle (see
definition of ``new,'' paragraph (4)).
    (5) For imported engines:
    (i) For imported engines described in paragraph (5)(i) of the
definition of ``new,'' model year has the meaning

[[Page 59258]]

given in paragraphs (1) through (4) of this definition.
    (ii) For imported engines described in paragraph (5)(ii) of the
definition of ``new,'' model year means the calendar year in which the
vehicle is modified.
    (iii) For imported engines described in paragraph (5)(iii) of the
definition of ``new'' model year means the calendar year in which the
engine is assembled in its imported configuration, unless specified
otherwise in this part or in 40 CFR part 1068.
* * * * *
    New means relating to any of the following things:
    (1) A freshly manufactured vehicle for which the ultimate purchaser
has never received the equitable or legal title. This kind of vehicle
might commonly be thought of as ``brand new.''
    In the case of this paragraph (1), the vehicle is new from the time
it is produced until the ultimate purchaser receives the title or the
product is placed into service, whichever comes first.
    (2) An engine originally manufactured as a motor vehicle engine or
a stationary engine that is later used or intended to be used in a
vehicle subject to the standards and requirements of this part 1051. In
this case, the engine is no longer a motor vehicle or stationary engine
and becomes new. The engine is no longer new when it is placed into
service as a recreational vehicle covered by this part 1051.
    (3) A nonroad engine that has been previously placed into service
in an application covered by 40 CFR part 90, 91, 1048, or 1054, when
that engine is installed in a piece of equipment that is covered by
this part 1051. The engine is no longer new when it is placed into
service in a recreational vehicle covered by this part 1051. For
example, this would apply to a marine propulsion engine that is no
longer used in a marine vessel.
    (4) An engine not covered by paragraphs (1) through (3) of this
definition that is intended to be installed in a new vehicle covered by
this part 1051. This generally includes installation of used engines in
new recreational vehicles. The engine is no longer new when the
ultimate purchaser receives a title for the vehicle or it is placed
into service, whichever comes first.
    (5) An imported vehicle or engine, subject to the following provisions:
    (i) An imported recreational vehicle or recreational-vehicle engine
covered by a certificate of conformity issued under this part that
meets the criteria of one or more of paragraphs (1) through (4) of this
definition, where the original manufacturer holds the certificate, is
new as defined by those applicable paragraphs.
    (ii) An imported vehicle or engine covered by a certificate of
conformity issued under this part, where someone other than the
original manufacturer holds the certificate (such as when the engine is
modified after its initial assembly), is new when it is imported. It is
no longer new when the ultimate purchaser receives a title for the
vehicle or engine or it is placed into service, whichever comes first.
    (iii) An imported recreational vehicle or recreational-vehicle
engine that is not covered by a certificate of conformity issued under
this part at the time of importation is new. This addresses uncertified
vehicles and engines initially placed into service that someone seeks
to import into the United States. Importation of this kind of vehicle
or engine is generally prohibited by 40 CFR part 1068. However, the
importation of such a vehicle or engine is not prohibited if it has a
model year before 2006, since it is not subject to standards.
* * * * *
    Nonmethane hydrocarbon has the meaning given in 40 CFR 1065.1001.
* * * * *
    Official emission result means the measured emission rate for an
emission-data vehicle on a given duty cycle before the application of
any deterioration factor.
* * * * *
    Owners manual means a document or collection of documents prepared
by the engine manufacturer for the owner or operator to describe
appropriate engine maintenance, applicable warranties, and any other
information related to operating or keeping the engine. The owners
manual is typically provided to the ultimate purchaser at the time of
sale. The owners manual may be in paper or electronic format.
* * * * *
    Recreational means, for purposes of this part, relating to
snowmobiles, all-terrain vehicles, off-highway motorcycles, and other
vehicles that we regulate under this part. Note that 40 CFR parts 90
and 1054 apply to engines used in other recreational vehicles.
* * * * *
    Total hydrocarbon has the meaning given in 40 CFR 1065.1001. This
generally means the combined mass of organic compounds measured by the
specified procedure for measuring total hydrocarbon, expressed as a
hydrocarbon with a hydrogen-to-carbon mass ratio of 1.85:1.
    Total hydrocarbon equivalent has the meaning given in 40 CFR 1065.1001.
* * * * *
    Volatile liquid fuel means any fuel other than diesel or biodiesel
that is a liquid at atmospheric pressure and has a Reid Vapor Pressure
higher than 2.0 pounds per square inch.
* * * * *

Sec.  1051.810  [Removed]

• 205. Section 1051.810 is removed.

• 206. A new Sec.  1051.825 is added to subpart I to read as follows:

Sec.  1051.825  What reporting and recordkeeping requirements apply
under this part?

    Under the Paperwork Reduction Act (44 U.S.C. 3501 et seq.), the
Office of Management and Budget approves the reporting and
recordkeeping specified in the applicable regulations. The following
items illustrate the kind of reporting and recordkeeping we require for
vehicles regulated under this part:
    (a) We specify the following requirements related to certification
in this part 1051:
    (1) In Sec. Sec.  1051.20 and 1051.25 we describe special provisions
for manufacturers to certify recreational engines instead of vehicles.
    (2) [Reserved]
    (3) In Sec.  1051.145 we include various reporting and
recordkeeping requirements related to interim provisions.
    (4) In subpart C of this part we identify a wide range of
information required to certify vehicles.
    (5) In Sec. Sec.  1051.345 and 1051.350 we specify certain records
related to production-line testing.
    (6) [Reserved]
    (7) In Sec.  1051.501 we specify information needs for establishing
various changes to published vehicle-based test procedures.
    (8) In subpart G of this part we identify several reporting and
recordkeeping items for making demonstrations and getting approval
related to various special compliance provisions.
    (9) In Sec. Sec.  1051.725, 1051.730, and 1051.735 we specify
certain records related to averaging, banking, and trading.
    (b) [Reserved]
    (c) We specify the following requirements related to testing in 40
CFR part 1065:
    (1) In 40 CFR 1065.2 we give an overview of principles for
reporting information.
    (2) In 40 CFR 1065.10 and 1065.12 we specify information needs for

[[Page 59259]]

establishing various changes to published engine-based test procedures.
    (3) In 40 CFR 1065.25 we establish basic guidelines for storing
test information.
    (4) In 40 CFR 1065.695 we identify data that may be appropriate for
collecting during testing of in-use engines or vehicles using portable
analyzers.
    (d) We specify the following requirements related to the general
compliance provisions in 40 CFR part 1068:
    (1) In 40 CFR 1068.5 we establish a process for evaluating good
engineering judgment related to testing and certification.
    (2) In 40 CFR 1068.25 we describe general provisions related to
sending and keeping information
    (3) In 40 CFR 1068.27 we require manufacturers to make engines or
vehicles available for our testing or inspection if we make such a request.
    (4) In 40 CFR 1068.105 we require manufacturers to keep certain
records related to duplicate labels from engine manufacturers.
    (5) In 40 CFR 1068.120 we specify recordkeeping related to
rebuilding engines.
    (6) In 40 CFR part 1068, subpart C, we identify several reporting
and recordkeeping items for making demonstrations and getting approval
related to various exemptions.
    (7) In 40 CFR part 1068, subpart D, we identify several reporting
and recordkeeping items for making demonstrations and getting approval
related to importing engines or vehicles.
    (8) In 40 CFR 1068.450 and 1068.455 we specify certain records
related to testing production-line engines in a selective enforcement audit.
    (9) In 40 CFR 1068.501 we specify certain records related to
investigating and reporting emission-related defects.
    (10) In 40 CFR 1068.525 and 1068.530 we specify certain records
related to recalling nonconforming vehicles.

• 207 A new part 1054 is added to subchapter U of chapter I to read as
follows:

PART 1054--CONTROL OF EMISSIONS FROM NEW, SMALL NONROAD SPARK-
IGNITION ENGINES AND EQUIPMENT

Subpart A--Overview and Applicability
Sec.
1054.1 Does this part apply for my engines and equipment?
1054.2 Who is responsible for compliance?
1054.5 Which nonroad engines are excluded from this part's
requirements?
1054.10 How is this part organized?
1054.15 Do any other CFR parts apply to me?
1054.20 What requirements apply to my equipment?
1054.30 Submission of information.
Subpart B--Emission Standards and Related Requirements
1054.101 What emission standards and requirements must my engines meet?
1054.103 What exhaust emission standards must my handheld engines meet?
1054.105 What exhaust emission standards must my nonhandheld engines meet?
1054.107 What is the useful life period for meeting exhaust emission
standards?
1054.110 What evaporative emission standards must my handheld
equipment meet?
1054.112 What evaporative emission standards must my nonhandheld
equipment meet?
1054.115 What other requirements apply?
1054.120 What emission-related warranty requirements apply to me?
1054.125 What maintenance instructions must I give to buyers?
1054.130 What installation instructions must I give to equipment
manufacturers?
1054.135 How must I label and identify the engines I produce?
1054.140 What is my engine's maximum engine power and displacement?
1054.145 Are there interim provisions that apply only for a limited time?
Subpart C--Certifying Emission Families
1054.201 What are the general requirements for obtaining a
certificate of conformity?
1054.205 What must I include in my application?
1054.210 May I get preliminary approval before I complete my application?
1054.220 How do I amend the maintenance instructions in my application?
1054.225 How do I amend my application for certification to include
new or modified engines or fuel systems or change an FEL?
1054.230 How do I select emission families?
1054.235 What exhaust emission testing must I perform for my
application for a certificate of conformity?
1054.240 How do I demonstrate that my emission family complies with
exhaust emission standards?
1054.245 How do I determine deterioration factors from exhaust
durability testing?
1054.250 What records must I keep and what reports must I send to EPA?
1054.255 What decisions may EPA make regarding my certificate of conformity?
Subpart D--Production-line Testing
1054.300 Applicability.
1054.301 When must I test my production-line engines?
1054.305 How must I prepare and test my production-line engines?
1054.310 How must I select engines for production-line testing?
1054.315 How do I know when my engine family fails the production-
line testing requirements?
1054.320 What happens if one of my production-line engines fails to
meet emission standards?
1054.325 What happens if an engine family fails the production-line
testing requirements?
1054.330 May I sell engines from an engine family with a suspended
certificate of conformity?
1054.335 How do I ask EPA to reinstate my suspended certificate?
1054.340 When may EPA revoke my certificate under this subpart and
how may I sell these engines again?
1054.345 What production-line testing records must I send to EPA?
1054.350 What records must I keep?
Subpart E--In-use Testing
1054.401 General provisions.
Subpart F--Test Procedures
1054.501 How do I run a valid emission test?
1054.505 How do I test engines?
1054.520 What testing must I perform to establish deterioration factors?
Subpart G--Special Compliance Provisions
1054.601 What compliance provisions apply to these engines?
1054.610 What is the exemption for delegated final assembly?
1054.612 What special provisions apply for equipment manufacturers
modifying certified nonhandheld engines?
1054.615 What is the exemption for engines certified to standards
for Large SI engines?
1054.620 What are the provisions for exempting engines used solely
for competition?
1054.625 What requirements apply under the Transition Program for
Equipment Manufacturers?
1054.626 What special provisions apply to equipment imported under
the Transition Program for Equipment Manufacturers?
1054.630 What provisions apply for importation of individual items
for personal use?
1054.635 What special provisions apply for small-volume engine and
equipment manufacturers?
1054.640 What special provisions apply to branded engines?
1054.645 What special provisions apply for converting an engine to
use an alternate fuel?
1054.650 What special provisions apply for adding or changing governors?
1054.655 What special provisions apply for installing and removing
altitude kits?
1054.660 What are the provisions for exempting emergency rescue equipment?
1054.690 What bond requirements apply for certified engines?
Subpart H--Averaging, Banking, and Trading for Certification
1054.701 General provisions.
1054.705 How do I generate and calculate exhaust emission credits?
1054.706 How do I generate and calculate evaporative emission credits?

[[Page 59260]]

1054.710 How do I average emission credits?
1054.715 How do I bank emission credits?
1054.720 How do I trade emission credits?
1054.725 What must I include in my application for certification?
1054.730 What ABT reports must I send to EPA?
1054.735 What records must I keep?
1054.740 What special provisions apply for generating and using
emission credits?
1054.745 What can happen if I do not comply with the provisions of
this subpart?
Subpart I--Definitions and Other Reference Information
1054.801 What definitions apply to this part?
1054.805 What symbols, acronyms, and abbreviations does this part use?
1054.815 What provisions apply to confidential information?
1054.820 How do I request a hearing?
1054.825 What reporting and recordkeeping requirements apply under
this part?

Appendix I to Part 1054--Summary of Previous Emission Standards

Appendix II to Part 1054--Duty Cycles for Laboratory Testing

    Authority: 42 U.S.C. 7401-7671q.

Subpart A--Overview and Applicability

Sec.  1054.1  Does this part apply for my engines and equipment?

    (a) Except as provided in Sec.  1054.5, the regulations in this
part 1054 apply as follows:
    (1) The requirements of this part related to exhaust emissions
apply to new, spark-ignition engines with maximum engine power at or
below 19 kW. This includes auxiliary marine spark-ignition engines.
    (2) The requirements of this part related to evaporative emissions
apply as specified in Sec. Sec.  1054.110 and 1054.112 to fuel systems
used with engines subject to exhaust emission standards in this part if
the engines use a volatile liquid fuel (such as gasoline).
    (3) This part 1054 applies starting with the model years noted in
the following table:

     Table 1 to Sec.   1054.1--Part 1054 Applicability by Model Year

------------------------------------------------------------------------
            Engine type               Engine  displacement    Model year
------------------------------------------------------------------------
 Handheld..........................  all...................         2010
Nonhandheld........................  displacement < 225 cc.         2012
Nonhandheld........................  displacement >= 225 cc         2011
------------------------------------------------------------------------

    (4) This part 1054 applies for other spark-ignition engines as follows:
    (i) The provisions of Sec. Sec.  1054.620 and 1054.801 apply for
engines used solely for competition beginning January 1, 2010.
    (ii) The provisions of Sec. Sec.  1054.660 and 1054.801 apply for
engines used in emergency rescue equipment beginning January 1, 2010.
    (5) We specify provisions in Sec.  1054.145(e) and (f) and in Sec. 
1054.740 that allow for meeting the requirements of this part before
the dates shown in Table 1 to this section. Engines, fuel-system
components, or equipment certified to these standards are subject to
all the requirements of this part as if these optional standards were
mandatory.
    (b) Although the definition of nonroad engine in 40 CFR 1068.30
excludes certain engines used in stationary applications, stationary
engines are required under 40 CFR part 60, subpart JJJJ, to comply with
this part starting with the model years shown in Table 1 to this section.
    (c) See 40 CFR part 90 for requirements that apply to engines not
yet subject to the requirements of this part 1054.
    (d) In certain cases, the regulations in this part 1054 apply to
engines with maximum engine power above 19 kW that would otherwise be
covered by 40 CFR part 1048 or 1051. See 40 CFR 1048.615 and
1051.145(a)(3) for provisions related to these allowances.
    (e) In certain cases, the regulations in this part 1054 apply to
propulsion marine engines that would otherwise be covered by 40 CFR
part 1045. See 40 CFR 1045.610 for provisions related to these allowances.

Sec.  1054.2  Who is responsible for compliance?

    The requirements and prohibitions of this part apply to
manufacturers of engines and equipment, as described in Sec.  1054.1.
The requirements of this part are generally addressed to manufacturers
subject to this part's requirements. The term ``you'' generally means
the certifying manufacturer. For provisions related to exhaust
emissions, this generally means the engine manufacturer, especially for
issues related to certification (including production-line testing,
reporting, etc.). For provisions related to certification with respect
to evaporative emissions, this generally means the equipment
manufacturer. Equipment manufacturers must meet applicable requirements
as described in Sec.  1054.20. Engine manufacturers that assemble an
engine's complete fuel system are considered to be the equipment
manufacturer with respect to evaporative emissions (see 40 CFR 1060.5).
Note that certification requirements for component manufacturers are
described in 40 CFR part 1060.

Sec.  1054.5  Which nonroad engines are excluded from this part's
requirements?

    This part does not apply to the following nonroad engines:
    (a) Engines that are certified to meet the requirements of 40 CFR
part 1051 (for example, engines used in snowmobiles and all-terrain
vehicles). Engines that are otherwise subject to 40 CFR part 1051 but
not required to be certified (such as engines exempted under 40 CFR
part 1051) are also excluded from this part 1054, unless the
regulations in 40 CFR part 1051 specifically require them to comply
with the requirements of this part 1054.
    (b) Engines that are certified to meet the requirements of 40 CFR
part 1048, subject to the provisions of Sec.  1054.615.
    (c) Propulsion marine engines. See 40 CFR parts 91 and 1045. Note
that the evaporative emission standards of this part also do not apply
with respect to auxiliary marine engines as described in Sec.  1054.20.
    (d) Engines used in reduced-scale models of vehicles that are not
capable of transporting a person.

Sec.  1054.10  How is this part organized?

    This part 1054 is divided into the following subparts:
    (a) Subpart A of this part defines the applicability of this part
1054 and gives an overview of regulatory requirements.
    (b) Subpart B of this part describes the emission standards and
other requirements that must be met to certify engines under this part.
Note that Sec.  1054.145 discusses certain interim requirements and
compliance provisions that apply only for a limited time.
    (c) Subpart C of this part describes how to apply for a certificate
of conformity.
    (d) Subpart D of this part describes general provisions for testing
production-line engines.
    (e) Subpart E of this part describes general provisions for testing
in-use engines.
    (f) Subpart F of this part describes how to test your engines
(including references to other parts of the Code of Federal
Regulations).
    (g) Subpart G of this part and 40 CFR part 1068 describe
requirements, prohibitions, and other provisions that apply to engine
manufacturers, equipment manufacturers, owners, operators, rebuilders,
and all others.
    (h) Subpart H of this part describes how you may generate and use
exhaust

[[Page 59261]]

and evaporative emission credits to certify your engines and equipment.
    (i) Subpart I of this part contains definitions and other reference
information.

Sec.  1054.15  Do any other CFR parts apply to me?

    (a) Part 1060 of this chapter describes standards and procedures
that apply for controlling evaporative emissions from engines fueled by
gasoline or other volatile liquid fuels and the associated fuel
systems. See Sec. Sec.  1054.110 and 1054.112 for information about how
that part applies.
    (b) Part 1065 of this chapter describes procedures and equipment
specifications for testing engines to measure exhaust emissions.
Subpart F of this part 1054 describes how to apply the provisions of
part 1065 of this chapter to determine whether engines meet the exhaust
emission standards in this part.
    (c) The requirements and prohibitions of part 1068 of this chapter
apply to everyone, including anyone who manufactures, imports,
installs, owns, operates, or rebuilds any of the engines subject to
this part 1054, or equipment containing these engines. Part 1068 of
this chapter describes general provisions, including these seven areas:
    (1) Prohibited acts and penalties for engine manufacturers,
equipment manufacturers, and others.
    (2) Rebuilding and other aftermarket changes.
    (3) Exclusions and exemptions for certain engines.
    (4) Importing engines.
    (5) Selective enforcement audits of your production.
    (6) Defect reporting and recall.
    (7) Procedures for hearings.
    (d) Other parts of this chapter apply if referenced in this part.

Sec.  1054.20  What requirements apply to my equipment?

    (a) If you manufacture equipment using engines certified under this
part, your equipment must meet all applicable emission standards with
the engine and fuel system installed.
    (b) Except as specified in paragraph (f) of this section, all
equipment subject to the exhaust standards of this part must meet the
evaporative emission standards of 40 CFR part 1060, as described in
Sec. Sec.  1054.110 and 1054.112.
    (c) Except as specified in paragraph (f) of this section, you must
identify and label equipment you produce under this section consistent
with the requirements of 40 CFR 1060.135.
    (d) You may need to certify your equipment or fuel systems as
described in 40 CFR 1060.1 and 1060.601.
    (e) You must follow all emission-related installation instructions
from the certifying manufacturers as described in Sec.  1054.130, 40
CFR 1060.130, and 40 CFR 1068.105. Failure to follow these instructions
subjects you to civil penalties as described in 40 CFR part 1068,
subpart B.
    (f) Motor vehicles and marine vessels may contain engines subject
to the exhaust emission standards in this part 1054. Evaporative
emission standards apply to these products as follows:
    (1) Marine vessels using spark-ignition engines are subject to the
requirements of 40 CFR part 1045. The vessels are not required to
comply with the evaporative emission standards and related requirements
of this part 1054.
    (2) Motor vehicles are subject to the requirements of 40 CFR part
86. They are not required to comply with the evaporative emission
standards and related requirements of this part 1054.

Sec.  1054.30  Submission of information.

    (a) This part includes various requirements to record data or other
information. Refer to Sec.  1054.825 and 40 CFR 1068.25 regarding
recordkeeping requirements. If recordkeeping requirements are not
specified, store these records in any format and on any media and keep
them readily available for one year after you send an associated
application for certification, or one year after you generate the data
if they do not support an application for certification. You must
promptly send us organized, written records in English if we ask for
them. We may review them at any time.
    (b) The regulations in Sec.  1054.255 and 40 CFR 1068.101 describe
your obligation to report truthful and complete information and the
consequences of failing to meet this obligation. This includes
information not related to certification.
    (c) Send all reports and requests for approval to the Designated
Compliance Officer (see Sec.  1054.801).
    (d) Any written information we require you to send to or receive
from another company is deemed to be a required record under this
section. Such records are also deemed to be submissions to EPA. We may
require you to send us these records whether or not you are a
certificate holder.

Subpart B--Emission Standards and Related Requirements

Sec.  1054.101  What emission standards and requirements must my
engines meet?

    (a) Exhaust emissions. You must show that your engines meet the
following exhaust emission standards, except as specified in paragraphs
(b) through (d) of this section:
    (1) Handheld engines must meet the exhaust emission standards in
Sec.  1054.103.
    (2) Nonhandheld engines must meet the exhaust emission standards in
Sec.  1054.105.
    (3) All engines must meet the requirements in Sec.  1054.115.
    (b) Evaporative emissions. Except as specified in Sec.  1054.20,
new equipment using engines that run on a volatile liquid fuel (such as
gasoline) must meet the evaporative emission requirements of 40 CFR
part 1060. The requirements of 40 CFR part 1060 that apply are
considered also to be requirements of this part 1054. Marine vessels
using auxiliary marine engines subject to this part must meet the
evaporative emission requirements in 40 CFR 1045.112 instead of the
evaporative emission requirements in this part. We specify evaporative
emission requirements for handheld and nonhandheld equipment separately
in Sec. Sec.  1054.110 and 1054.112.
    (c) Wintertime engines. Emission standards regulating HC and
NOX exhaust emissions are optional for wintertime engines.
However, if you certify an emission family to such standards, those
engines are subject to all the requirements of this part as if these
optional standards were mandatory.
    (d) Two-stroke snowthrower engines. Two-stroke snowthrower engines
may meet exhaust emission standards that apply to handheld engines with
the same engine displacement instead of the nonhandheld standards that
would otherwise apply.
    (e) Relationship between handheld and nonhandheld engines. Any
engines certified to the nonhandheld emission standards in Sec. 
1054.105 may be used in either handheld or nonhandheld equipment.
Engines above 80 cc certified to the handheld emission standards in
Sec.  1054.103 may not be used in nonhandheld equipment. For purposes
of the requirements of this part, engines at or below 80 cc are
considered handheld engines, but may be installed in either handheld or
nonhandheld equipment. These engines are subject to handheld exhaust
emission standards; the equipment in which they are installed are
subject to handheld evaporative emission standards starting with the
model years specified in this part 1054. See Sec.  1054.701(c) for
special provisions related to emission credits for engine families with
displacement at or below 80 cc where those engines are installed in
nonhandheld equipment.
    (f) Interim provisions. It is important that you read Sec. 
1054.145 to determine if there are other interim requirements or

[[Page 59262]]

interim compliance provisions that apply for a limited time.

Sec.  1054.103  What exhaust emission standards must my handheld
engines meet?

    (a) Emission standards. Exhaust emissions from your handheld
engines may not exceed the emission standards in Table 1 to this
section. Measure emissions using the applicable steady-state test
procedures described in subpart F of this part.

   Table 1 to Sec.   1054.103--Phase 3 Emission Standards for Handheld
                            Engines (g/kW-hr)
------------------------------------------------------------------------
               Engine displacement class                 HC+NOX     CO
------------------------------------------------------------------------
Class III.............................................       50      805
Class IV..............................................       50      805
Class V...............................................       72      603
------------------------------------------------------------------------

    (b) Averaging, banking, and trading. You may generate or use
emission credits under the averaging, banking, and trading (ABT)
program for HC+NOX emissions as described in subpart H of
this part. You may not generate or use emission credits for CO
emissions. To generate or use emission credits, you must specify a
family emission limit for each engine family you include in the ABT
program. These family emission limits serve as the emission standards
for the engine family with respect to all required testing instead of
the standards specified in this section. An engine family meets
emission standards even if its family emission limit is higher than the
standard, as long as you show that the whole averaging set of
applicable engine families meets the emission standards using emission
credits and the engines within the family meet the family emission
limit. The following FEL caps are the maximum values you may specify
for family emission limits:
    (1) 336 g/kW-hr for Class III engines.
    (2) 275 g/kW-hr for Class IV engines.
    (3) 186 g/kW-hr for Class V engines.
    (c) Fuel types. The exhaust emission standards in this section
apply for engines using the fuel type on which the engines in the
emission family are designed to operate. You must meet the numerical
emission standards for hydrocarbons in this section based on the
following types of hydrocarbon emissions for engines powered by the
following fuels:
    (1) Alcohol-fueled engines: THCE emissions.
    (2) Natural gas-fueled engines: NMHC emissions.
    (3) Other engines: THC emissions.
    (d) Useful life. Your engines must meet the exhaust emission
standards in paragraph (a) of this section over their full useful life
as described in Sec.  1054.107.
    (e) Applicability for testing. The emission standards in this
subpart apply to all testing, including certification, production-line,
and in-use testing.

Sec.  1054.105  What exhaust emission standards must my nonhandheld
engines meet?

    (a) Emission standards. Exhaust emissions from your engines may not
exceed the emission standards in Table 1 to this section. Measure
emissions using the applicable steady-state test procedures described
in subpart F of this part.

 Table 1 to Sec.   1054.105--Phase 3 Emission Standards for Nonhandheld
                            Engines (g/kW-hr)
------------------------------------------------------------------------
                                                                  CO
                                                               standard
    Engine displacement class         HC+NOX     Primary CO   for marine
                                                  standard    generator
                                                               engines
------------------------------------------------------------------------
Class I..........................         10.0          610          5.0
Class II.........................          8.0          610          5.0
------------------------------------------------------------------------

    (b) Averaging, banking, and trading. You may generate or use
emission credits under the averaging, banking, and trading (ABT)
program for HC+NOX emissions as described in subpart H of
this part. You may not generate or use emission credits for CO
emissions. To generate or use emission credits, you must specify a
family emission limit for each engine family you include in the ABT
program. These family emission limits serve as the emission standards
for the engine family with respect to all required testing instead of
the standards specified in this section. An engine family meets
emission standards even if its family emission limit is higher than the
standard, as long as you show that the whole averaging set of
applicable engine families meets the emission standards using emission
credits, and the engines within the family meet the family emission
limit. The following FEL caps are the maximum values you may specify
for family emission limits:
    (1) 40.0 g/kW-hr for Class I engines with displacement below 100 cc.
    (2) 16.1 g/kW-hr for Class I engines with displacement at or above
100 cc.
    (3) 12.1 for Class II engines.
    (c) Fuel types. The exhaust emission standards in this section
apply for engines using the fuel type on which the engines in the
emission family are designed to operate. You must meet the numerical
emission standards for hydrocarbons in this section based on the
following types of hydrocarbon emissions for engines powered by the
following fuels:
    (1) Alcohol-fueled engines: THCE emissions.
    (2) Natural gas-fueled engines: NMHC emissions.
    (3) Other engines: THC emissions.
    (d) Useful life. Your engines must meet the exhaust emission
standards in paragraph (a) of this section over their full useful life
as described in Sec.  1054.107.
    (e) Applicability for testing. The emission standards in this
subpart apply to all testing, including certification, production-line,
and in-use testing.

Sec.  1054.107  What is the useful life period for meeting exhaust
emission standards?

    This section describes an engine family's useful life, which is the
period during which engines are required to comply with all emission
standards that apply. The useful life period is five years or a number
of hours of operation, whichever comes first, as described in this section.
    (a) Determine the useful life period for exhaust requirements as
follows:
    (1) Except as specified in paragraphs (a)(2) and (3) of this
section, the useful life period for exhaust requirements is the number
of engine operating hours from Table 1 to this section that most
closely matches the expected median in-use life of your engines. The
median in-use life of your engine is the shorter of the following
values:
    (i) The median in-use life of equipment into which the engine is
expected to be installed.
    (ii) The median in-use life of the engine without being scrapped or
rebuilt.

[[Page 59263]]

                             Table 1 to Sec.   1054.107--Nominal Useful Life Periods
----------------------------------------------------------------------------------------------------------------
                                                   Nonhandheld
-----------------------------------------------------------------------------------------------------------------
                                                                                   Extended life
                                                                    Residential     residential     Commercial
                                                                                        \1\
----------------------------------------------------------------------------------------------------------------
Class I.........................................................             125             250             500
Class II........................................................             250             500           1,000
----------------------------------------------------------------------------------------------------------------



                                                    Handheld
-----------------------------------------------------------------------------------------------------------------
                                                                     Light use      Medium use       Heavy use
----------------------------------------------------------------------------------------------------------------
Class III--V....................................................              50             125             300
----------------------------------------------------------------------------------------------------------------
\1\ Or ``General Purpose.''

    (2) You may select a longer useful life for nonhandheld engines
than that specified in paragraph (a)(1) of this section in 100-hour
increments not to exceed 3,000 hours for Class I engines or 5,000 hours
for Class II engines. For engine families generating emission credits,
you may do this only with our approval. These are considered ``Heavy
Commercial'' engines.
    (3) The minimum useful life period for engines with maximum engine
power above 19 kW is 1,000 hours (see Sec.  1054.1(d)).
    (b) Keep any available information to support your selection and
make it available to us if we ask for it. We may require you to certify
to a different useful life value from the table if we determine that
the selected useful life value is not justified by the data. We may
consider any relevant information, including your product warranty
statements and marketing materials regarding engine life, in making
this determination. We may void your certificate if we determine that
you intentionally selected an incorrect value. Support your selection
based on any of the following information:
    (1) Surveys of the life spans of the equipment in which the subject
engines are installed.
    (2) Engineering evaluations of field aged engines to ascertain when
engine performance deteriorates to the point where usefulness and/or
reliability is impacted to a degree sufficient to necessitate overhaul
or replacement.
    (3) Failure reports from engine customers.
    (4) Engineering evaluations of the durability, in hours, of
specific engine technologies, engine materials, or engine designs.

Sec.  1054.110  What evaporative emission standards must my handheld
equipment meet?

    The following evaporative emission requirements apply for handheld
equipment over a useful life of five years:
    (a) Fuel line permeation. Nonmetal fuel lines must meet the
permeation requirements for EPA Nonroad Fuel Lines or EPA Cold-Weather
Fuel Lines as specified in 40 CFR 1060.102. These requirements apply
starting in the 2012 model year, except that they apply starting in the
2013 model year for emission families involving small-volume emission
families that are not used in cold-weather equipment. For fuel lines
used in cold-weather equipment, you may generate or use emission
credits to show compliance with these permeation standards through 2015
as described in Sec.  1054.145(h).
    (b) Tank permeation. Fuel tanks must meet the permeation
requirements specified in 40 CFR 1060.103. These requirements apply for
handheld equipment starting in the 2010 model year, except that they
apply starting in the 2011 model year for structurally integrated nylon
fuel tanks, in the 2012 model year for handheld equipment using
nonhandheld engines, and in the 2013 model year for all small-volume
emission families. For nonhandheld equipment using engines at or below
80 cc, the requirements of this paragraph (b) apply starting in the
2012 model year. (Note: 40 CFR 90.129 specifies emission standards for
certain 2009 model year engines and equipment.) You may generate or use
emission credits to show compliance with the requirements of this
paragraph (b) under the averaging, banking, and trading program as
described in subpart H of this part. FEL caps apply as specified in
Sec.  1054.112(b)(1) through (3) starting in the 2015 model year.
    (c) Running loss. The running loss requirements specified in 40 CFR
part 1060 do not apply for handheld equipment.
    (d) Other requirements. The provisions of 40 CFR 1060.101(e) and
(f) include general requirements that apply to all nonroad equipment
subject to evaporative emission standards.
    (e) Engine manufacturers. To the extent that engine manufacturers
produce engines with fuel lines or fuel tanks, those fuel-system
components must meet the requirements specified in this section. The
timing of new standards is based on the date of manufacture of the engine.

Sec.  1054.112  What evaporative emission standards must my nonhandheld
equipment meet?

    The evaporative emission requirements of this section apply
starting in the 2011 model year for equipment using Class II engines
and in the 2012 model year for equipment using Class I engines over a
useful life of five years. See Sec.  1054.110 for requirements that
apply for nonhandheld equipment using engines at or below 80 cc.
    (a) Fuel line permeation. Nonmetal fuel lines must meet the
permeation requirements for EPA Nonroad Fuel Lines as specified in 40
CFR 1060.102.
    (b) Tank permeation. Fuel tanks must meet the permeation
requirements specified in 40 CFR 1060.103. Equipment manufacturers may
generate or use emission credits to show compliance with the
requirements of this paragraph (b) under the averaging, banking, and
trading program as described in subpart H of this part. Starting in the
2014 model year for Class II equipment and in the 2015 model year for
Class I equipment, the following FEL caps represent the maximum values
for family emission limits that you may use for your fuel tanks:
    (1) Except as specified in paragraphs (b)(2) of this section, you
may not use fuel tanks with a family emission limit that exceeds 5.0 g/
m2/day for testing at a nominal temperature of 28 [deg]C, or
8.3 g/m2/day for testing at a nominal temperature of 40 [deg]C.
    (2) For small-volume emission families, you may not use fuel tanks
with a family emission limit that exceeds 8.0 g/m2/day for
testing at a nominal temperature of 28 [deg]C, or 13.3 g/

[[Page 59264]]

m2/day for testing at a nominal temperature of 40 [deg]C.
    (3) FEL caps do not apply to fuel caps that are certified
separately to meet permeation standards.
    (c) Running loss. Running loss requirements apply as specified in
40 CFR 1060.104.
    (d) Diurnal emissions. Nonhandheld equipment may optionally be
certified to the diurnal emission standards specified in 40 CFR
1060.105, in which case the permeation standards specified in
paragraphs (a) and (b) of this section do not apply.
    (e) Other requirements. The provisions of 40 CFR 1060.101(e) and
(f) include general requirements that apply to all nonroad equipment
subject to evaporative emission standards.
    (f) Engine manufacturers. To the extent that engine manufacturers
produce engines with fuel lines or fuel tanks, those fuel-system
components must meet the requirements specified in this section. The
timing of new standards is based on the date of manufacture of the engine.

Sec.  1054.115  What other requirements apply?

    The following requirements apply with respect to engines that are
required to meet the emission standards of this part:
    (a) Crankcase emissions. Crankcase emissions may not be discharged
directly into the ambient atmosphere from any engine throughout its
useful life, except as follows:
    (1) Snowthrower engines may discharge crankcase emissions to the
ambient atmosphere if the emissions are added to the exhaust emissions
(either physically or mathematically) during all emission testing. If
you take advantage of this exception, you must do the following things:
    (i) Manufacture the engines so that all crankcase emissions can be
routed into the applicable sampling systems specified in 40 CFR part 1065.
    (ii) Account for deterioration in crankcase emissions when
determining exhaust deterioration factors.
    (2) For purposes of this paragraph (a), crankcase emissions that
are routed to the exhaust upstream of exhaust aftertreatment during all
operation are not considered to be discharged directly into the ambient
atmosphere.
    (b) Adjustable parameters. Engines that have adjustable parameters
must meet all the requirements of this part for any adjustment in the
physically adjustable range. An operating parameter is not considered
adjustable if you permanently seal it or if it is not normally
accessible using ordinary tools. We may require that you set adjustable
parameters to any specification within the adjustable range during any
testing, including certification testing, production-line testing, or
in-use testing. You may ask us to limit idle-speed or carburetor
adjustments to a smaller range than the physically adjustable range if
you show us that the engine will not be adjusted outside of this
smaller range during in-use operation without significantly degrading
engine performance.
    (c) Altitude adjustments. Engines must meet applicable emission
standards for valid tests conducted under the ambient conditions
specified in 40 CFR 1065.520. Except as specified in Sec.  1054.145(c),
engines must meet applicable emission standards at all specified
atmospheric pressures, except that for atmospheric pressures below 94.0
kPa you may rely on an altitude kit for all testing if you meet the
requirements specified in Sec.  1054.205(r). If you rely on an altitude
kit for certification, you must identify in the owners manual the
altitude range for which you expect proper engine performance and
emission control with and without the altitude kit; you must also state
in the owners manual that operating the engine with the wrong engine
configuration at a given altitude may increase its emissions and
decrease fuel efficiency and performance. See Sec.  1054.145(c) for
special provisions that apply for handheld engines.
    (d) Prohibited controls. You may not design your engines with
emission-control devices, systems, or elements of design that cause or
contribute to an unreasonable risk to public health, welfare, or safety
while operating. For example, this would apply if the engine emits a
noxious or toxic substance it would otherwise not emit that contributes
to such an unreasonable risk.
    (e) Defeat devices. You may not equip your engines with a defeat
device. A defeat device is an auxiliary emission control device that
reduces the effectiveness of emission controls under conditions that
the engine may reasonably be expected to encounter during normal
operation and use. This does not apply for altitude kits installed or
removed consistent with Sec.  1054.655. This also does not apply to
auxiliary emission control devices you identify in your application for
certification if any of the following is true:
    (1) The conditions of concern were substantially included in the
applicable duty-cycle test procedures described in subpart F of this part.
    (2) You show your design is necessary to prevent engine (or
equipment) damage or accidents.
    (3) The reduced effectiveness applies only to starting the engine.

Sec.  1054.120  What emission-related warranty requirements apply to me?

    The requirements of this section apply to the manufacturer
certifying with respect to exhaust emissions. See 40 CFR part 1060 for
the warranty requirements related to evaporative emissions.
    (a) General requirements. You must warrant to the ultimate
purchaser and each subsequent purchaser that the new engine, including
all parts of its emission control system, meets two conditions:
    (1) It is designed, built, and equipped so it conforms at the time
of sale to the ultimate purchaser with the requirements of this part.
    (2) It is free from defects in materials and workmanship that may
keep it from meeting these requirements.
    (b) Warranty period. Your emission-related warranty must be valid
during the periods specified in this paragraph (b). You may offer an
emission-related warranty more generous than we require. The emission-
related warranty for the engine may not be shorter than any published
warranty you offer without charge for the engine. Similarly, the
emission-related warranty for any component may not be shorter than any
published warranty you offer without charge for that component. If an
engine has no hour meter, we base the warranty periods in this
paragraph (b) only on the engine's age (in years). The warranty period
begins on the date of sale to the ultimate purchaser. The minimum
warranty periods are as follows:
    (1) The minimum warranty period is two years except as allowed
under paragraph (b)(2) or (3) of this section.
    (2) We may establish a shorter warranty period for handheld engines
subject to severe service in seasonal equipment if we determine that
these engines are likely to operate for a number of hours greater than
the applicable useful life within 24 months. You must request this
shorter warranty period in your application for certification or in an
earlier submission.
    (3) For engines equipped with hour meters, you may deny warranty
claims for engines that have accumulated a number of hours greater than
50 percent of the applicable useful life.
    (c) Components covered. The emission-related warranty covers all
components whose failure would increase an engine's emissions of any
regulated pollutant, including

[[Page 59265]]

components listed in 40 CFR part 1068, Appendix I, and components from
any other system you develop to control emissions. The emission-related
warranty covers these components even if another company produces the
component. Your emission-related warranty does not cover components
whose failure would not increase an engine's emissions of any regulated
pollutant.
    (d) Limited applicability. You may deny warranty claims under this
section if the operator caused the problem through improper maintenance
or use, as described in 40 CFR 1068.115.
    (e) Owners manual. Describe in the owners manual the emission-
related warranty provisions from this section that apply to the engine.
Include instructions for obtaining warranty service consistent with the
requirements of paragraph (f) of this section.
    (f) Requirements related to warranty claims. You are required at a
minimum to meet the following conditions to ensure that owners will be
able to promptly obtain warranty repairs:
    (1) You must provide and monitor a toll-free telephone number and
an e-mail address for owners to receive information about how to make a
warranty claim, and how to make arrangements for authorized repairs.
    (2) You must provide a source of replacement parts within the
United States. For parts that you import, this requires you to have at
least one distributor within the United States.
    (3) You must use one of the following methods to show that you will
generally be able to honor warranty claims:
    (i) If you have authorized service centers in all U.S. population
centers with a population of 100,000 or more based on the 2000 census,
you may limit warranty repairs to these service providers.
    (ii) You may limit warranty repairs to authorized service centers
for owners located within 100 miles of an authorized service center.
For owners located more than 100 miles from an authorized service
center, you must state in your warranty that you will either pay for
shipping costs to and from an authorized service center, provide for a
service technician to come to the owner to make the warranty repair, or
pay for the repair to be made at a local nonauthorized service center.
The provisions of this paragraph (f)(3)(ii) apply only for the
contiguous states, excluding the states with high-altitude areas
identified in 40 CFR part 1068, Appendix III.
    (iii) You may use the approach described in paragraphs (f)(3)(i) of
this section for some states and the approach described in paragraph
(f)(3)(ii) of this section for other states. However, you must have at
least one authorized service center in each state unless the whole
state is within 100 miles of authorized service centers in other states.
    (4) If your plan for meeting the requirements of this paragraph (f)
does not include at least 100 authorized repair facilities in the
United States or at least one such facility for each 5,000 engines you
sell in the United States, you must also post a bond as described in
Sec.  1054.690 to ensure that you will fulfill your warranty-repair
responsibilities even if you are not obligated to post a bond under
that section. Note that you may post a single bond to meet the
requirements of this section and Sec.  1054.690.

Sec.  1054.125  What maintenance instructions must I give to buyers?

    Give the ultimate purchaser of each new engine written instructions
for properly maintaining and using the engine, including the emission
control system as described in this section. The maintenance
instructions also apply to service accumulation on your emission-data
engines as described in Sec.  1054.245 and in 40 CFR part 1065. Note
that for handheld engines subject to Phase 3 standards you may perform
maintenance on emission-data engines during service accumulation as
described in 40 CFR part 90.
    (a) Critical emission-related maintenance. Critical emission-
related maintenance includes any adjustment, cleaning, repair, or
replacement of critical emission-related components. This may also
include additional emission-related maintenance that you determine is
critical if we approve it in advance. You may schedule critical
emission-related maintenance on these components if you meet the
following conditions:
    (1) You demonstrate that the maintenance is reasonably likely to be
done at the recommended intervals on in-use engines. We will accept
scheduled maintenance as reasonably likely to occur if you satisfy any
of the following conditions:
    (i) You present data showing that any lack of maintenance that
increases emissions also unacceptably degrades the engine's performance.
    (ii) You present survey data showing that at least 80 percent of
engines in the field get the maintenance you specify at the recommended
intervals. If the survey data show that 60 to 80 percent of engines in
the field get the maintenance you specify at the recommended intervals,
you may ask us to consider additional factors such as the effect on
performance and emissions. For example, we may allow you to schedule
fuel-injector replacement as critical emission-related maintenance if
you have survey data showing this is done at the recommended interval
for 65 percent of engines and you demonstrate that performance
degradation is roughly proportional to the degradation in emission
control for engines that do not have their fuel injectors replaced.
    (iii) You provide the maintenance free of charge and clearly say so
in your maintenance instructions.
    (iv) You otherwise show us that the maintenance is reasonably
likely to be done at the recommended intervals.
    (2) You may schedule cleaning or changing air filters or changing
spark plugs at the least frequent interval described in the owners
manual. See Sec.  1054.245 for testing requirements related to these
maintenance steps.
    (3) You may not schedule critical emission-related maintenance
within the useful life period for aftertreatment devices, pulse-air
valves, fuel injectors, oxygen sensors, electronic control units,
superchargers, or turbochargers, except as specified in paragraph (b)
or (c) of this section.
    (b) Recommended additional maintenance. You may recommend any
additional amount of maintenance on the components listed in paragraph
(a) of this section, as long as you state clearly that these
maintenance steps are not necessary to keep the emission-related
warranty valid. If operators do the maintenance specified in paragraph
(a) of this section, but not the recommended additional maintenance,
this does not allow you to disqualify those engines from in-use testing
or deny a warranty claim. Do not take these maintenance steps during
service accumulation on your emission-data engines.
    (c) Special maintenance. You may specify more frequent maintenance
to address problems related to special situations, such as atypical
engine operation. You must clearly state that this additional
maintenance is associated with the special situation you are addressing.
    (d) Noncritical emission-related maintenance. Subject to the
provisions of this paragraph (d), you may schedule any amount of
emission-related inspection or maintenance that is not covered by
paragraph (a) of this section (i.e., maintenance that is neither
explicitly identified as critical emission-related maintenance, nor
that we approve as critical emission-related maintenance). Noncritical
emission-

[[Page 59266]]

related maintenance generally includes re-seating valves, removing
combustion chamber deposits, or any other emission-related maintenance
on the components we specify in 40 CFR part 1068, Appendix I that is
not covered in paragraph (a) of this section. You must state in the
owners manual that these steps are not necessary to keep the emission-
related warranty valid. If operators fail to do this maintenance, this
does not allow you to disqualify those engines from in-use testing or
deny a warranty claim. Do not take these inspection or maintenance
steps during service accumulation on your emission-data engines.
    (e) Maintenance that is not emission-related. For maintenance
unrelated to emission controls, you may schedule any amount of
inspection or maintenance. You may also take these inspection or
maintenance steps during service accumulation on your emission-data
engines, as long as they are reasonable and technologically necessary.
This might include adding engine oil, changing fuel or oil filters,
servicing engine-cooling systems, and adjusting idle speed, governor,
engine bolt torque, valve lash, or injector lash. You may perform this
nonemission-related maintenance on emission-data engines at the least
frequent intervals that you recommend to the ultimate purchaser (but
not the intervals recommended for severe service).
    (f) Source of parts and repairs. State clearly on the first page of
your written maintenance instructions that a repair shop or person of
the owner's choosing may maintain, replace, or repair emission control
devices and systems. Your instructions may not require components or
service identified by brand, trade, or corporate name. Also, do not
directly or indirectly condition your warranty on a requirement that
the engine be serviced by your franchised dealers or any other service
establishments with which you have a commercial relationship. You may
disregard the requirements in this paragraph (f) if you do one of two
things:
    (1) Provide a component or service without charge under the
purchase agreement.
    (2) Get us to waive this prohibition in the public's interest by
convincing us the engine will work properly only with the identified
component or service.
    (g) Payment for scheduled maintenance. Owners are responsible for
properly maintaining their engines. This generally includes paying for
scheduled maintenance. However, manufacturers must pay for scheduled
maintenance during the useful life if it meets all the following criteria:
    (1) Each affected component was not in general use on similar
engines before 1997.
    (2) The primary function of each affected component is to reduce
emissions.
    (3) Failure to perform the maintenance would not cause clear
problems that would significantly degrade the engine's performance.
    (h) Owners manual. Explain the owner's responsibility for proper
maintenance in the owners manual.

Sec.  1054.130  What installation instructions must I give to equipment
manufacturers?

    (a) If you sell an engine for someone else to install in a piece of
equipment, give the engine installer instructions for installing it
consistent with the requirements of this part. Include all information
necessary to ensure that an engine will be installed in its certified
configuration.
    (b) Make sure the instructions have the following information:
    (1) Include the heading: ``Emission-related installation instructions''.
    (2) State: ``Failing to follow these instructions when installing a
certified engine in nonroad equipment violates federal law (40 CFR
1068.105(b)), subject to fines or other penalties as described in the
Clean Air Act.''
    (3) Describe the instructions needed to properly install the
exhaust system and any other components. Include instructions consistent
with the requirements of Sec.  1054.655 related to altitude kits.
    (4) Describe the steps needed to control evaporative emissions in
accordance with certificates of conformity that you hold. Include
instructions for connecting fuel lines as needed to prevent running
loss emissions, if applicable. Such instructions must include
sufficient detail to ensure that running loss control will not cause
the engine to exceed exhaust emission standards. For example, you may
specify a maximum vapor flow rate under normal operating conditions.
Also include notification that the installer must meet the requirements
of Sec.  1054.112 and 40 CFR part 1060.
    (5) Describe any limits on the range of applications needed to
ensure that the engine remains in its certified configuration after
installation. For example, if you certify engines only for rated-speed
applications tell equipment manufacturers that the engine must not be
installed in equipment involving intermediate-speed operation. Also, if
your wintertime engines are not certified to the otherwise applicable
HC+NOX standards, tell equipment manufacturers that the
engines must be installed in equipment that is used only in wintertime.
    (6) Describe any other instructions to make sure the installed
engine will operate according to design specifications in your
application for certification. For example, this may include specified
limits for catalyst systems, such as exhaust backpressure, catalyst
location, and temperature profiles during engine operation.
    (7) State: ``If you install the engine in a way that makes the
engine's emission control information label hard to read during normal
engine maintenance, you must place a duplicate label on the equipment,
as described in 40 CFR 1068.105.''
    (c) You do not need installation instructions for engines you
install in your own equipment.
    (d) Provide instructions in writing or in an equivalent format. For
example, you may post instructions on a publicly available Web site for
downloading or printing. If you do not provide the instructions in
writing, explain in your application for certification how you will
ensure that each installer is informed of the installation requirements.

Sec.  1054.135  How must I label and identify the engines I produce?

    The provisions of this section apply to engine manufacturers.
    (a) Assign each engine a unique identification number and
permanently affix, engrave, or stamp it on the engine in a legible way.
    (b) At the time of manufacture, affix a permanent and legible label
identifying each engine. The label must be--
    (1) Attached in one piece so it is not removable without being
destroyed or defaced.
    (2) Secured to a part of the engine needed for normal operation and
not normally requiring replacement.
    (3) Durable and readable for the engine's entire life.
    (4) Written in English.
    (c) The label must conform to the following specifications without
exception:
    (1) Include the heading ``EMISSION CONTROL INFORMATION''.
    (2) Include your full corporate name and trademark. You may
identify another company and use its trademark instead of yours if you
comply with the provisions of Sec.  1054.640.
    (3) Include EPA's standardized designation for the emission family
(and subfamily, where applicable).

[[Page 59267]]

    (4) State the following based on the useful life requirements in
Sec.  1054.107: ``EMISSION COMPLIANCE PERIOD = [identify applicable
useful life period] HOURS''. In addition to specifying the hours, you
may optionally add the descriptive terms specified in Sec.  1054.107(a)
to characterize the useful life. You may use the term Heavy Commercial
for nonhandheld engines if you establish a longer useful life under
Sec.  1054.107(a)(2).
    (5) State the engine's displacement (in cubic centimeters);
however, you may omit this from the label if all the engines in the
emission family have the same per-cylinder displacement and total
displacement.
    (6) State the date of manufacture [DAY (optional), MONTH, and
YEAR]; however, you may omit this from the label if you stamp, engrave,
or otherwise permanently identify it elsewhere on the engine, in which
case you must also describe in your application for certification where
you will identify the date on the engine.
    (7) Identify the emission control system. Use terms and
abbreviations as described in 40 CFR 1068.45. You may omit this
information from the label if there is not enough room for it and you
put it in the owners manual instead.
    (8) Include one of the following statements:
    (i) If you certify the engine only with respect to exhaust
emissions, state--

``THIS ENGINE MEETS U.S. EPA EXH REGS FOR [MODEL YEAR].''

    (ii) If you certify the engine with respect to exhaust emissions
and the equipment with respect to evaporative emissions, state--

``THIS ENGINE MEETS U.S. EPA EXH/EVP REGS FOR [MODEL YEAR].''

    (d) The following information may be included on the label or in
the owners manual:
    (1) List specifications and adjustments for engine tuneups.
    (2) Identify the altitude at which an altitude kit should be
installed if you specify an altitude kit under Sec.  1054.115(c).
    (3) Identify the fuel type and any requirements for fuel and lubricants.
    (4) If your nonhandheld engines are certified for use only at rated
speed or only at intermediate speed, add the statement: ``CERTIFIED FOR
[rated-speed or intermediate-speed] APPLICATIONS ONLY'' or ``CERTIFIED
FOR [identify nominal engine speed or range of speeds for testing]
OPERATION ONLY''.
    (e) You may add information to the emission control information
label as follows:
    (1) You may identify other emission standards that the engine meets
or does not meet (such as California standards). You may include this
information by adding it to the statement we specify or by including a
separate statement.
    (2) You may add other information to ensure that the engine will be
properly maintained and used.
    (3) You may add appropriate features to prevent counterfeit labels.
For example, you may include the engine's unique identification number
on the label.
    (f) Except for the labeling requirements specified in paragraph (c)
of this section, you may ask us to approve modified labeling
requirements in this part 1054 if you show that it is necessary or
appropriate. We will approve your request if your alternate label is
consistent with the requirements of this part.
    (g) If others install your engine in their equipment in a way that
obscures the engine label such that the label cannot be read during
normal maintenance, we require them to add a duplicate label on the
equipment (see 40 CFR 1068.105). If equipment manufacturers request it,
send them labels that include all the information from the original
label and that are clearly identified as duplicate labels. You may omit
the date of manufacture from the duplicate label. Keep a written record
of each request for five years after it is no longer needed for ongoing
production.
    (h) Integrated equipment manufacturers certifying their engines and
equipment with respect to both exhaust and evaporative emission
standards may meet labeling requirements with a single label that has
all the required information specified in this section and in 40 CFR
1060.135.

Sec.  1054.140  What is my engine's maximum engine power and displacement?

    This section describes how to quantify your engine's maximum engine
power and displacement for the purposes of this part.
    (a) An engine configuration's maximum engine power is the maximum
brake power point on the nominal power curve for the engine
configuration, as defined in this section. Round the power value to the
nearest 0.1 kilowatts for nonhandheld engines and to the nearest 0.01
kilowatts for handheld engines. The nominal power curve of an engine
configuration is the relationship between maximum available engine
brake power and engine speed for an engine, using the mapping
procedures of 40 CFR part 1065, based on the manufacturer's design and
production specifications for the engine. For handheld engines, we may
allow manufacturers to base the nominal power curve on other mapping
procedures, consistent with good engineering judgment. This information
may also be expressed by a torque curve that relates maximum available
engine torque with engine speed. Note that maximum engine power is
based on engines and installed engine governors; equipment designs that
further limit engine operation do not change maximum engine power.
    (b) An engine configuration's displacement is the intended swept
volume of all the engine's cylinders. The swept volume of the engine is
the product of the internal cross-section area of the cylinders, the
stroke length, and the number of cylinders. Calculate the engine's
intended swept volume from the design specifications for the cylinders
using enough significant figures to allow determination of the
displacement to the nearest 0.1 cc. Determine the final value by
rounding to the nearest cubic centimeter. For example, for a one-
cylinder engine with circular cylinders having an internal diameter of
6.00 cm and a 6.25 cm stroke length, the rounded displacement would be:
(1) x (6.00/2) 2 x ([pi]) x (6.25) = 177 cc.
    (c) The nominal power curve and intended swept volume must be
within the range of the actual power curves and swept volumes of
production engines considering normal production variability. If after
production begins it is determined that either your nominal power curve
or your intended swept volume does not represent production engines, we
may require you to amend your application for certification under Sec. 
1054.225.

Sec.  1054.145  Are there interim provisions that apply only for a
limited time?

    The provisions in this section apply instead of other provisions in
this part. This section describes how and when these interim provisions
apply.
    (a) Delayed Phase 3 implementation for engine manufacturers. Small-
volume engine manufacturers may delay complying with the Phase 3
exhaust emission standards and requirements that would otherwise apply,
subject to the following conditions:
    (1) You may delay meeting the Phase 3 exhaust emission standards
until 2013 for Class II engines and until 2014 for Class I engines. The
running loss standards in Sec.  1054.112 also do not apply to engines
exempted under this paragraph (a), or to equipment using these engines.

[[Page 59268]]

    (2) You must certify your engines exempted under this section to
the Phase 2 standards and requirements specified in 40 CFR 90.103 and
summarized in Appendix I of this part. You must meet the labeling
requirements in 40 CFR 90.114, but use the following compliance
statement instead of the compliance statement in 40 CFR 90.114(c)(7):
``THIS ENGINE COMPLIES WITH U.S. EPA REGULATIONS FOR [CURRENT MODEL
YEAR] NONROAD ENGINES UNDER 40 CFR 1054.145(a).''
    (3) After the delays indicated in paragraph (a)(1) of this section,
you must comply with the same standards and requirements as all other
manufacturers except as noted elsewhere in this section.
    (4) The provisions of this paragraph (a) may not be used to
circumvent the requirements of this part.
    (5) You may continue to generate early credits during this two-year
period as described under Sec.  1054.740 as if the Phase 3 emission
standards applied starting in the 2013 model year for Class II engines
and in the 2014 model year for Class I engines.
    (b) Delayed Phase 3 implementation for equipment manufacturers. The
provisions of Sec.  1054.625 describe how manufacturers may produce
certain numbers of equipment using Class II engines that meet Phase 2
standards during the first four years that the Phase 3 standards apply.
    (c) Special provisions for handheld engines. The following
provisions apply for handheld engines:
    (1) You may use the provisions in 40 CFR 90.104(g) to rely on
assigned deterioration factors for small-volume engine manufacturers
and for small-volume engine families.
    (2) You may perform maintenance on emission-data engines during
service accumulation as described in 40 CFR part 90. If your scheduled
emission-related maintenance falls within 10 hours of a test point,
delay the maintenance until the engine reaches the test point. Measure
emissions before and after peforming the maintenance. Use the average
values from these two measurements to calculate deterioration factors.
The emission-data engine must meet applicable emission standards before
and after maintenance to be considered in compliance, as described in
Sec.  1054.240(a) and (b).
    (3) Engines subject to Phase 3 emission standards must meet the
standards at or above barometric pressures of 96.0 kPa in the standard
configuration and are not required to meet emission standards at lower
barometric pressures. This is intended to allow testing under most
weather conditions at all altitudes up to 1,100 feet above sea level.
In your application for certification, identify the altitude above
which you rely on an altitude kit to meet emission standards and
describe your plan for making information and parts available such that
you would reasonably expect that altitude kits would be widely used at
all such altitudes.
    (d) Alignment of model years for exhaust and evaporative standards.
Evaporative emission standards generally apply based on the model year
of the equipment, which is determined by the equipment's date of final
assembly. However, in the first year of new emission standards,
equipment manufacturers may apply evaporative emission standards based
on the model year of the engine as shown on the engine's emission
control information label. For example, for the fuel line permeation
standards starting in 2012, equipment manufacturers may order a batch
of 2011 model year engines for installation in 2012 model year
equipment, subject to the anti-stockpiling provisions of 40 CFR
1068.105(a). The equipment with the 2011 model year engines would not
need to meet fuel line permeation standards, as long as the equipment
is fully assembled by December 31, 2012.
    (e) Early compliance with evaporative emission standards--
nonhandheld equipment manufacturers. You may produce nonhandheld
equipment that does not meet the otherwise applicable evaporative
emission standards without violating the prohibition in 40 CFR
1068.101(a)(1) if you earn evaporative emission allowances, as follows:
    (1) You may earn an evaporative emission allowance from each piece
of equipment certified to California's evaporative emission standards
by producing it before the requirements of this part start to apply and
selling it outside of California. You may use an evaporative emission
allowance by selling one piece of equipment that does not meet any EPA
evaporative emission standards even though it is subject to the EPA
standards. The early-compliant equipment must be covered by an EPA
certificate of conformity (see 40 CFR 1060.105(e)).
    (2) You may earn an evaporative emission allowance with respect to
fuel tank permeation from each piece of equipment certified to EPA's
evaporative emission standards by selling it outside of California or
in an application that is preempted from California's standards before
EPA's fuel tank permeation standards start to apply. The early-
compliant fuel tanks must be covered by an EPA certificate of
conformity, though you may demonstrate compliance based on the
specifications and procedures adopted by the California Air Resources
Board. You may use an evaporative emission allowance by selling one
piece of equipment with a fuel tank that does not meet the EPA emission
standards that would otherwise apply. For example, you can earn an
evaporative emission allowance by selling a low-permeation fuel tank
for Class II equipment before the 2011 model year, in which case you
could sell a piece of Class II equipment in 2011 with a high-permeation
fuel tank. You may not generate allowances under this paragraph (e)(2)
based on your sales of metal fuel tanks.
    (3) Evaporative emission allowances you earn under this paragraph
(e) from equipment with Class I engines may be used only for other
equipment with Class I engines. Similarly, evaporative emission
allowances you earn under this paragraph (e) from equipment with Class
II engines may be used only for other equipment with Class II engines.
    (4) You must label any equipment using allowances under this
paragraph (e) with the following statement: ``EXEMPT FROM EVAPORATIVE
STANDARDS UNDER 40 CFR 1054.145(e)''.
    (5) You may not use the allowances you generate under this
paragraph (e) for 2014 and later model year equipment with Class II
engines or for 2015 and later model year equipment with Class I engines.
    (6) Send the Designated Compliance Officer the following
information for each year in which you use the provisions of this
paragraph (e):
    (i) Send us a report within 45 days after the end of the model year
describing how many pieces of equipment you produced in the preceding
model year that generate allowances. You may combine this with the
reports specified in Sec.  1054.250(a) if applicable.
    (ii) Describe the number of equipment using allowances under this
paragraph (e) in your end-of-year reports and final reports after the
end of the model year as described in Sec.  1054.730(a). If you do not
participate in the averaging, banking, and trading program, send this
information separately within 90 days after the end of the model year.
    (f) Early banking for evaporative emission standards--handheld
equipment manufacturers. You may earn emission credits for handheld
equipment you produce before the evaporative emission standards of
Sec.  1054.110 apply. To do this, your equipment must use fuel tanks with a

[[Page 59269]]

family emission limit below 1.5 g/m2/day (or 2.5 g/
m2/day for testing at 40 [deg]C). Calculate your credits as
described in Sec.  1054.706 based on the difference between the family
emission limit and 1.5 g/m2/day (or 2.5 g/m2/day
for testing at 40 [deg]C).
    (g) Useful life for evaporative emission standards. (1) A useful
life period of two years applies for fuel tanks or fuel caps certified
to meet permeation emission standards in 2013 and earlier model years.
However, for fuel tanks with a family emission limit above or below the
specified emission standard, calculate emission credits under Sec. 
1054.706 based on a useful life of five years.
    (2) A useful life period of two years applies for cold-weather fuel
lines certified to meet permeation emission standards in 2012 and 2013.
However, for fuel lines with a family emission limit above or below the
specified emission standard, calculate emission credits under Sec. 
1054.706 based on a useful life of five years.
    (h) Emission credit program for cold-weather fuel lines. In the
2012 through 2015 model years, certifying equipment manufacturers may
generate or use emission credits for averaging to show compliance with
the permeation standards for cold-weather fuel lines, but not for
banking or trading, as follows:
    (1) To generate or use emission credits, apply the provisions of
subpart H of this part as they apply for fuel tanks except as specified
in this paragraph (h). For example, calculate emission credits based on
the internal surface area of the fuel lines and a five-year useful
life, even if the standards apply temporarily over a shorter useful life.
    (2) Establish an FEL for each emission family based on emission
measurements as specified in 40 CFR 1060.515. The FEL may not exceed
400 g/m2/day for any emission family.
    (3) Use an adjustment factor (AF) of 1.0 for calculating credits.
    (4) Cold-weather fuel lines are in a separate averaging set, which
means you may not exchange emission credits between fuel tanks and fuel
lines.
    (i) Use of California data for handheld fuel tank permeation. If
you certified handheld fuel tanks to the permeation standards in 40 CFR
90.129 based on emission measurements for demonstrating compliance with
emission standards for California, you may continue to comply with the
provisions of 40 CFR 90.129 instead of the provisions of Sec. 
1054.110(b) for the 2010 and 2011 model years, provided that we allow
you to use carryover emission data under 40 CFR 1060.235(e) for your
emission family.
    (j) Continued use of 40 CFR part 90 test procedures. You may use
the test procedures for measuring exhaust emissions in 40 CFR part 90
instead of those in subpart F of this part for 2010 through 2012 model
years. This applies for certification, production-line, and in-use
testing. You may continue to use data based on the test procedures in
40 CFR part 90 for engine families in 2013 and later model years,
provided that we allow you to use carryover emission data under 40 CFR
1054.235(d) for your emission family. You may also use the test
procedures for measuring exhaust emissions in 40 CFR part 90 for
production-line testing with any engine family whose certification is
based on testing with those procedures.
    (k) Carryover of exhaust emission data from Californa ARB
procedures. You may certify your engines through the 2012 model year
based on exhaust emission data you previously submitted to California
ARB. This applies for certification and production-line testing. This
paragraph (k) no longer applies starting with the 2013 model year. Note
that other regulatory provisions may allow you to use data from
California ARB for EPA certification in certain circumstances.
    (l) [Reserved]
    (m) Delayed compliance for rotation-molded fuel tanks. (1) You may
produce limited numbers of 2011 and 2012 model year equipment with
rotation-molded fuel tanks that do not meet permeation emission
standards specified in Sec.  1054.112(b) and 40 CFR 1060.103, subject
to the following provisions:
    (i) You may use allowances under this paragraph (m) only for Class
II equipment models using identical fuel tanks such that the production
volumes of the fuel tank design used in such equipment is no more than
5,000 units in the 2011 and 2012 model years, with a total corporate
allowance of 10,000 units in 2012. If production volumes are greater
than 5,000 for a given fuel tank design (or greater than 10,000
corporate-wide in the 2012 model year), all those tanks must comply
with emission standards. Tanks are generally considered identical if
they are produced under a single part number to conform to a single
design or blueprint. Tanks should be considered identical if they
differ only with respect to production variability, post-production
changes (such as different fittings or grommets), supplier, color, or
other extraneous design variables. The limit of 5,000 units for a given
fuel tank design applies together for the total production from any
parent or subsidiary companies.
    (ii) Include the following statement on the emission label
specified in 40 CFR 1060.135: ``EXEMPT FROM TANK PERMEATION STANDARDS
UNDER 40 CFR 1054.145''.
    (iii) You must keep records to demonstrate that you do not exceed
the specified production volumes. Identify the number of exempted
equipment you produced from each model and from each production facility.
    (iv) You may not apply the provisions of this paragraph (m) for
fuel tanks that are not rotation-molded or for equipment that is not
powered by a Class II engine.
    (2) Fuel tank manufacturers may produce exempted fuel tanks as
needed for equipment manufacturers under this paragraph (m) without our
prior approval. Fuel tank manufacturers must keep records of the number
of exempted fuel tanks sold to each equipment manufacturer.
    (3) Equipment you produce under this paragraph (m) are exempt from
the prohibitions in 40 CFR 1068.101(a)(1) with respect to fuel tank
permeation emissions, subject to the provisions of this paragraph (m).
However, producing more exempted equipment than we allow under this
paragraph (m) violates the prohibitions in 40 CFR 1068.101(a)(1).
Equipment manufacturers and fuel tank manufacturers must keep the
records we require under this paragraph (m) until at least December 31,
2016 and give them to us if we ask for them (see 40 CFR 1068.101(a)(2)).
    (n) Ethanol-blended test fuel for nonhandheld engines. During the
first two years of the Phase 3 standards, if you use an ethanol-blended
test fuel for certifying a given engine family as described in Sec. 
1054.501(b)(2), we will also use the blended fuel for testing engines
from that engine family, whether or not you use the blended fuel for
certifying all your Class I (or Class II) engine families in that model year.

Subpart C--Certifying Emission Families

Sec.  1054.201  What are the general requirements for obtaining a
certificate of conformity?

    Engine manufacturers must certify their engines with respect to the
exhaust emission standards in this part. Manufacturers of engines,
equipment, or fuel-system components may need to certify their products
with respect to evaporative emission standards as described in 40 CFR
1060.1 and 1060.601. The following general

[[Page 59270]]

requirements apply for obtaining a certificate of conformity:
    (a) You must send us a separate application for a certificate of
conformity for each engine family. A certificate of conformity is valid
starting with the indicated effective date but it is not valid for any
production after December 31 of the model year for which it is issued.
No certificate will be issued after December 31 of the model year. If
you certify with respect to both exhaust and evaporative emissions, you
must submit separate applications.
    (b) The application must contain all the information required by
this part and must not include false or incomplete statements or
information (see Sec.  1054.255).
    (c) We may ask you to include less information than we specify in
this subpart as long as you maintain all the information required by
Sec.  1054.250.
    (d) You must use good engineering judgment for all decisions
related to your application (see 40 CFR 1068.5).
    (e) An authorized representative of your company must approve and
sign the application.
    (f) See Sec.  1054.255 for provisions describing how we will
process your application.
    (g) We may require you to deliver your test engines to a facility
we designate for our testing (see Sec.  1054.235(c)).

Sec.  1054.205  What must I include in my application?

    This section specifies the information that must be in your
application, unless we ask you to include less information under Sec. 
1054.201(c). We may require you to provide additional information to
evaluate your application. The provisions of this section apply to
integrated equipment manufacturers and engine manufacturers selling
loose engines. Nonintegrated equipment manufacturers must follow the
requirements of 40 CFR part 1060.
    (a) Describe the emission family's specifications and other basic
parameters of the engine's design and emission controls. List the fuel
type on which your engines are designed to operate (for example, all-
season gasoline). List each distinguishable engine configuration in the
emission family. For each engine configuration in which the maximum
modal power of the emission-data engine is at or above 25 kW (or power
at or above 15 kW if displacement is above 1000 cc), list the maximum
engine power and the range of values for maximum engine power resulting
from production tolerances, as described in Sec.  1054.140.
    (b) Explain how the emission control systems operate. Describe the
evaporative emission controls and show how your design will prevent
running loss emissions, if applicable. Also describe in detail all
system components for controlling exhaust emissions, including all
auxiliary emission control devices (AECDs) and all fuel-system
components you will install on any production or test engine. Identify
the part number of each component you describe (or the alphanumeric
designation for catalysts described in Sec.  1054.610, if applicable).
For this paragraph (b), treat as separate AECDs any devices that
modulate or activate differently from each other. Include sufficient
detail to allow us to evaluate whether the AECDs are consistent with
the defeat device prohibition of Sec.  1054.115. For example, if your
engines will routinely experience in-use operation that differs from
the specified duty cycle for certification, describe how the fuel-
metering system responds to varying speeds and loads not represented by
the duty cycle. If you test an emission-data engine by disabling the
governor for full-load operation such that the engine operates at an
air-fuel ratio significantly different than under full-load operation
with an installed governor, explain why these differences are necessary
or appropriate. For conventional carbureted engines without electronic
fuel controls, it is sufficient to state that there is no significant
difference in air-fuel ratios.
    (c) [Reserved]
    (d) Describe the engines, equipment, and fuel system components you
selected for testing and the reasons for selecting them.
    (e) Describe the test equipment and procedures that you used,
including any special or alternate test procedures you used. For
handheld engines, describe how you selected the value for rated speed.
    (f) Describe how you operated the emission-data engine before
testing, including the duty cycle and the number of engine operating
hours used to stabilize emission levels. Explain why you selected the
method of service accumulation. Describe any scheduled maintenance you did.
    (g) List the specifications of the test fuel to show that it falls
within the required ranges we specify in 40 CFR part 1065.
    (h) Identify the emission family's useful life. Describe the basis
for selecting useful life values with respect to exhaust emissions (see
Sec.  1054.107).
    (i) Include the maintenance and warranty instructions you will give
to the ultimate purchaser of each new engine (see Sec. Sec.  1054.120
and 1054.125). Describe your basis for meeting the warranty-assurance
provisions in Sec.  1054.120(f). Describe your recall repair network if
it is different than your warranty repair network. State that you will
post a bond as specified in Sec.  1054.120(f) and 1054.690 or describe
why those requirements do not apply.
    (j) Include the emission-related installation instructions you will
provide if someone else installs your engines in nonroad equipment (see
Sec.  1054.130).
    (k) Describe your emission control information label (see Sec. 
1054.135).
    (l) Identify the emission standards or FELs for the emission family.
    (m) Identify the emission family's deterioration factors and
describe how you developed them (see Sec.  1054.245). Present any
emission test data you used for this.
    (n) State that you operated your emission-data engines as described
in the application (including the test procedures, test parameters, and
test fuels) to show you meet the requirements of this part.
    (o) Present emission data to show that you meet exhaust emission
standards, as follows:
    (1) Present emission data for hydrocarbons (such as THC, THCE, or
NMHC, as applicable), NOX, and CO on an emission-data engine
to show your engines meet the applicable exhaust emission standards as
specified in Sec.  1054.101. Show emission figures before and after
applying deterioration factors for each engine. Include test data from
each applicable duty cycle specified in Sec.  1054.505(b). If we
specify more than one grade of any fuel type (for example, low-
temperature and all-season gasoline), you need to submit test data only
for one grade, unless the regulations of this part specify otherwise
for your engine.
    (2) Note that Sec. Sec.  1054.235 and 1054.245 allow you to submit
an application in certain cases without new emission data.
    (p) Report all test results, including those from invalid tests,
whether or not they were conducted according to the test procedures of
subpart F of this part. If you measure CO2, report those
emission levels (in g/kW-hr). We may ask you to send other information
to confirm that your tests were valid under the requirements of this
part and 40 CFR parts 1060 and 1065.
    (q) Describe all adjustable operating parameters (see Sec. 
1054.115(b)), including production tolerances. Include the following in
your description of each parameter:

[[Page 59271]]

    (1) The nominal or recommended setting.
    (2) The intended physically adjustable range.
    (3) The limits or stops used to establish adjustable ranges.
    (4) Information showing why the limits, stops, or other means of
inhibiting adjustment are effective in preventing adjustment of
parameters on in-use engines to settings outside your intended
physically adjustable ranges.
    (r) Describe how your nonhandheld engines comply with emission
standards at varying atmospheric pressures. Include a description of
altitude kits you design to comply with the requirements of Sec. 
1054.115(c). Identify the part number of each component you describe.
Identify the altitude range for which you expect proper engine
performance and emission control with and without the altitude kit.
State that your engines will comply with applicable emission standards
throughout the useful life with the altitude kit installed according to
your instructions. Describe any relevant testing, engineering analysis,
or other information in sufficient detail to support your statement. In
addition, describe your plan for making information and parts available
such that you would reasonably expect that altitude kits would be
widely used in the high-altitude counties specified in 40 CFR part
1068, Appendix III. For example, engine owners should have ready access
to information describing when an altitude kit is needed and how to
obtain this service. Similarly, parts and service information should be
available to qualified service facilities in addition to authorized
service centers if that is needed for owners to have such altitude kits
installed locally.
    (s) If your engines are subject to handheld emission standards on
the basis of meeting weight limitations described in the definition of
``handheld'' in Sec.  1054.801, describe your analysis showing that you
meet the applicable weight-related restrictions.
    (t) State whether your certification is limited for certain
engines. If this is the case, describe how you will prevent use of
these engines in applications for which they are not certified. This
applies for engines such as the following:
    (1) Wintertime engines not certified to the specified
HC+NOX standard.
    (2) Two-stroke snowthrower engines using the provisions of Sec. 
1054.101(d).
    (u) Unconditionally certify that all the engines in the emission
family comply with the requirements of this part, other referenced
parts of the CFR, and the Clean Air Act.
    (v) Include good-faith estimates of U.S.-directed production
volumes. Include a justification for the estimated production volumes
if they are substantially different than actual production volumes in
earlier years for similar models. Also indicate whether you expect the
engine family to contain only nonroad engines, only stationary engines,
or both.
    (w) State that you will post a bond as specified in Sec.  1054.690
or describe why those requirements do not apply.
    (x) Include the information required by other subparts of this
part. For example, include the information required by Sec.  1054.725
if you participate in the ABT program.
    (y) Include other applicable information, such as information
specified in this part or 40 CFR part 1068 related to requests for
exemptions.
    (z) Name an agent for service located in the United States. Service
on this agent constitutes service on you or any of your officers or
employees for any action by EPA or otherwise by the United States
related to the requirements of this part.
    (aa) For imported engines or equipment, identify the following:
    (1) The port(s) at which you have imported your engines (or
equipment containing your engines) over the previous 12 months.
    (2) The names and addresses of the agents you have authorized to
import your engines or equipment.
    (3) The location of a test facility in the United States where you
can test your engines if we select them for testing under a selective
enforcement audit, as specified in 40 CFR part 1068, subpart E.

Sec.  1054.210  May I get preliminary approval before I complete my
application?

    If you send us information before you finish the application, we
will review it and make any appropriate determinations, especially for
questions related to emission family definitions, auxiliary emission
control devices, deterioration factors, useful life, testing for
service accumulation, maintenance, and delegated final assembly.
Decisions made under this section are considered to be preliminary
approval, subject to final review and approval. We will generally not
reverse a decision where we have given you preliminary approval, unless
we find new information supporting a different decision. If you request
preliminary approval related to the upcoming model year or the model
year after that, we will make the appropriate determinations as soon as
practicable. We will generally not provide preliminary approval related
to a future model year more than two years ahead of time.

Sec.  1054.220  How do I amend the maintenance instructions in my
application?

    You may amend your emission-related maintenance instructions after
you submit your application for certification as long as the amended
instructions remain consistent with the provisions of Sec.  1054.125.
You must send the Designated Compliance Officer a written request to
amend your application for certification for an engine family if you
want to change the emission-related maintenance instructions in a way
that could affect emissions. In your request, describe the proposed
changes to the maintenance instructions. If operators follow the
original maintenance instructions rather than the newly specified
maintenance, this does not allow you to disqualify those engines from
in-use testing or deny a warranty claim.
    (a) If you are decreasing, replacing, or eliminating any specified
maintenance, you may distribute the new maintenance instructions to
your customers 30 days after we receive your request, unless we
disapprove your request. This would generally include replacing one
maintenance step with another. We may approve a shorter time or waive
this requirement.
    (b) If your requested change would not decrease the specified
maintenance, you may distribute the new maintenance instructions
anytime after you send your request. For example, this paragraph (b)
would cover adding instructions to increase the frequency of filter
changes for engines in severe-duty applications.
    (c) You need not request approval if you are making only minor
corrections (such as correcting typographical mistakes), clarifying
your maintenance instructions, or changing instructions for maintenance
unrelated to emission control. We may ask you to send us copies of
maintenance instructions revised under this paragraph (c).

Sec.  1054.225  How do I amend my application for certification to
include new or modified engines or fuel systems or change an FEL?

    Before we issue you a certificate of conformity, you may amend your
application to include new or modified engine or fuel-system
configurations, subject to the provisions of this section. After we
have issued your certificate of conformity, you may send us an amended
application requesting that we include new or modified configurations
within the scope of the certificate, subject to the provisions of this
section.

[[Page 59272]]

You must amend your application if any changes occur with respect to
any information included in your application.
    (a) You must amend your application before you take any of the
following actions:
    (1) Add an engine or fuel-system configuration to an emission
family. In this case, the configuration added must be consistent with
other configurations in the emission family with respect to the
criteria listed in Sec.  1054.230.
    (2) Change a configuration already included in an emission family
in a way that may affect emissions, or change any of the components you
described in your application for certification. This includes
production and design changes that may affect emissions any time during
the engine's lifetime.
    (3) Modify an FEL for an emission family with respect to exhaust
emissions as described in paragraph (f) of this section.
    (b) To amend your application for certification, send the
Designated Compliance Officer the following information:
    (1) Describe in detail the addition or change in the model or
configuration you intend to make.
    (2) Include engineering evaluations or data showing that the
amended emission family complies with all applicable requirements. You
may do this by showing that the original emission-data engine or
emission-data equipment is still appropriate for showing that the
amended family complies with all applicable requirements.
    (3) If the original emission-data engine for the engine family is
not appropriate to show compliance for the new or modified engine
configuration, include new test data showing that the new or modified
engine configuration meets the requirements of this part.
    (c) We may ask for more test data or engineering evaluations. You
must give us these within 30 days after we request them.
    (d) For emission families already covered by a certificate of
conformity, we will determine whether the existing certificate of
conformity covers your new or modified configuration. You may ask for a
hearing if we deny your request (see Sec.  1054.820).
    (e) For emission families already covered by a certificate of
conformity, you may start producing the new or modified configuration
anytime after you send us your amended application and before we make a
decision under paragraph (d) of this section. However, if we determine
that the affected configurations do not meet applicable requirements,
we will notify you to cease production of the configurations and may
require you to recall the engine or equipment at no expense to the
owner. Choosing to produce engines under this paragraph (e) is deemed
to be consent to recall all engines or equipment that we determine do
not meet applicable emission standards or other requirements and to
remedy the nonconformity at no expense to the owner. If you do not
provide information required under paragraph (c) of this section within
30 days after we request it, you must stop producing the new or
modified engine or equipment.
    (f) You may ask us to approve a change to your FEL with respect to
exhaust emissions in certain cases after the start of production. The
changed FEL may not apply to engines you have already introduced into
U.S. commerce, except as described in this paragraph (f). If we approve
a changed FEL after the start of production, you must identify the date
or serial number for applying the new FEL. If you identify this by
month and year, we will consider that a lowered FEL applies on the last
day of the month and a raised FEL applies on the first day of the
month. You may ask us to approve a change to your FEL in the following
cases:
    (1) You may ask to raise your FEL for your emission family at any
time. In your request, you must show that you will still be able to
meet the emission standards as specified in subparts B and H of this
part. If you amend your application by submitting new test data to
include a newly added or modified engine, as described in paragraph
(b)(3) of this section, use the appropriate FELs with corresponding
production volumes to calculate emission credits for the model year, as
described in subpart H of this part. In all other circumstances, you
must use the higher FEL for the entire family to calculate emission
credits under subpart H of this part.
    (2) You may ask to lower the FEL for your emission family only if
you have test data from production engines showing that emissions are
below the proposed lower FEL. The lower FEL does not apply to engines
you produce before the new FEL starts to apply, as specified in this
paragraph (f). Use the appropriate FELs with corresponding production
volumes to calculate emission credits for the model year, as described
in subpart H of this part.

Sec.  1054.230  How do I select emission families?

    (a) For purposes of certification, divide your product line into
families of engines that are expected to have similar emission
characteristics throughout their useful life as described in this
section. Your emission family is limited to a single model year. For
evaporative emissions, group engines into emission families as
described in 40 CFR 1060.230.
    (b) Group engines into the same emission family for exhaust
emissions if they are the same in all the following aspects:
    (1) The combustion cycle and fuel. See paragraph (g) of this
section for special provisions that apply for dual-fuel engines.
    (2) The cooling system (liquid-cooled vs. air-cooled).
    (3) Valve configuration (for example, side-valve vs. overhead valve).
    (4) Method of air aspiration (for example, turbocharged vs.
naturally aspirated).
    (5) The number, location, volume, and composition of catalytic
converters.
    (6) The number and arrangement of cylinders and approximate total
displacement.
    (7) Engine class, as defined in Sec.  1054.801.
    (8) Method of control for engine operation, other than governing
(mechanical or electronic).
    (9) The numerical level of the applicable emission standards. For
example, an engine family may not include engines certified to
different family emission limits, though you may change family emission
limits without recertifying as specified in Sec.  1054.225.
    (10) Useful life.
    (c) You may subdivide a group that is identical under paragraph (b)
of this section into different emission families if you show the
expected emission characteristics are different during the useful life.
    (d) You may group engines that are not identical with respect to
the things listed in paragraph (b) of this section into the same
emission family, as follows:
    (1) In unusual circumstances, you may group such engines into the
same emission family if you show that their emission characteristics
during the useful life will be similar.
    (2) If you are a small-volume engine manufacturer, you may group
any nonhandheld engines with the same useful life that are subject to
the same emission standards into a single emission family.
    (3) The provisions of this paragraph (d) do not exempt any engines
from meeting all the applicable standards and requirements in subpart B
of this part.
    (e) Select test engines from the emission family as described in 40
CFR 1065.401.

[[Page 59273]]

    (f) You may combine engines from different classes into a single
emission family under paragraph (d)(1) of this section if you certify
the emission family to the more stringent set of standards from the two
classes in that model year.
    (g) You may certify dual-fuel or flexible-fuel engines in a single
engine family. You may include dedicated-fuel versions of this same
engine model in the same engine family, as long as they are identical
to the engine configuration with respect to that fuel type for the
dual-fuel or flexible-fuel version of the engine. For example, if you
produce an engine that can alternately run on gasoline and natural gas,
you can include the gasoline-only and natural gas-only versions of the
engine in the same engine family as the dual-fuel engine if engine
operation on each fuel type is identical with or without installation
of components for operating on the other fuel.

Sec.  1054.235  What exhaust emission testing must I perform for my
application for a certificate of conformity?

    This section describes the exhaust emission testing you must
perform to show compliance with the emission standards in Sec. Sec. 
1054.103 and 1054.105. See Sec. Sec.  1054.240 and 1054.245 and 40 CFR
part 1065, subpart E, regarding service accumulation before emission
testing.
    (a) Select an emission-data engine from each engine family for
testing as described in 40 CFR 1065.401. Select a configuration that is
most likely to exceed the HC+NOX standard, using good
engineering judgment. Configurations must be tested as they will be
produced, including installed governors, if applicable.
    (b) Test your emission-data engines using the procedures and
equipment specified in subpart F of this part. In the case of dual-fuel
engines, measure emissions when operating with each type of fuel for
which you intend to certify the engine. In the case of flexible-fuel
engines, measure emissions when operating with the fuel mixture that is
most likely to cause the engine to exceed the applicable
HC+NOX emission standard, though you may ask us to exclude
fuel mixtures that you can show are not likely to occur in use.
    (c) We may measure emissions from any of your emission-data engines
or other engines from the emission family, as follows:
    (1) We may decide to do the testing at your plant or any other
facility. If we do this, you must deliver the engine to a test facility
we designate. The engine you provide must include appropriate
manifolds, aftertreatment devices, electronic control units, and other
emission-related components not normally attached directly to the
engine block. If we do the testing at your plant, you must schedule it
as soon as possible and make available the instruments, personnel, and
equipment we need.
    (2) If we measure emissions on one of your engines, the results of
that testing become the official emission results for the engine.
    (3) We may set the adjustable parameters of your engine to any
point within the physically adjustable ranges (see Sec.  1054.115(b)).
    (4) We may calibrate your engine within normal production
tolerances for anything we do not consider an adjustable parameter. For
example, this would apply where we determine that an engine parameter
is not an adjustable parameter (as defined in Sec.  1054.801) but that
it is subject to production variability.
    (d) You may ask to use carryover emission data from a previous
model year instead of doing new tests, but only if all the following
are true:
    (1) The emission family from the previous model year differs from
the current emission family only with respect to model year or other
characteristics unrelated to emissions. You may also ask to add a
configuration subject to Sec.  1054.225.
    (2) The emission-data engine from the previous model year remains
the appropriate emission-data engine under paragraph (b) of this section.
    (3) The data show that the emission-data engine would meet all the
requirements that apply to the emission family covered by the
application for certification. For engines originally tested under the
provisions of 40 CFR part 90, you may consider those test procedures to
be equivalent to the procedures we specify in subpart F of this part.
    (e) We may require you to test another engine of the same or
different configuration in addition to the engine(s) tested under
paragraph (b) of this section.
    (f) If you use an alternate test procedure under 40 CFR 1065.10 and
later testing shows that such testing does not produce results that are
equivalent to the procedures specified in subpart F of this part, we
may reject data you generated using the alternate procedure.

Sec.  1054.240  How do I demonstrate that my emission family complies
with exhaust emission standards?

    (a) For purposes of certification, your emission family is
considered in compliance with the emission standards in Sec. 
1054.101(a) if all emission-data engines representing that family have
test results showing deteriorated emission levels at or below these
standards. This includes all test points over the course of the
durability demonstration. Note that your FELs are considered to be the
applicable emission standards with which you must comply if you
participate in the ABT program in subpart H of this part.
    (b) Your engine family is deemed not to comply if any emission-data
engine representing that family has test results showing a deteriorated
emission level for any pollutant that is above an applicable emission
standard. This includes all test points over the course of the
durability demonstration.
    (c) Determine a deterioration factor to compare emission levels
from the emission-data engine with the applicable emission standards.
Section 1054.245 specifies how to test engines to develop deterioration
factors that represent the expected deterioration in emissions over
your engines' full useful life. Calculate a multiplicative
deterioration factor as described in Sec.  1054.245(b). If the
deterioration factor is less than one, use one. Specify the
deterioration factor to one more significant figure than the emission
standard. You may use assigned deterioration factors that we establish
for up to 10,000 nonhandheld engines from small-volume emission
families in each model year, except that small-volume engine
manufacturers may use assigned deterioration factors for any or all of
their engine families.
    (d) Adjust the official emission results for each tested engine at
the low-hour test point by multiplying the measured emissions by the
deterioration factor, then rounding the adjusted figure to the same
number of decimal places as the emission standard. Compare the rounded
emission levels to the emission standard for each emission-data engine.
In the case of HC+NOX standards, add the official emission
results and apply the deterioration factor to the sum of the pollutants
before rounding. However, if your deterioration factors are based on
emission measurements that do not cover the engine's full useful life,
apply deterioration factors to each pollutant and then add the results
before rounding.
    (e) The provisions of this paragraph (e) apply only for engine
families with a useful life at or below 300 hours. To apply the
deterioration factor to engines other than the original emission-data
engine, they must be operated for the same number of hours before
starting emission measurements that you used

[[Page 59274]]

for the original emission-data engine, within one hour. For example, if
the original emission-data engine operated for 8 hours before the low-
hour emission test, operate the other test engines for 7 to 9 hours
before starting emission measurements.

Sec.  1054.245  How do I determine deterioration factors from exhaust
durability testing?

    This section describes how to determine deterioration factors,
either with pre-existing test data or with new emission measurements.
    (a) You may ask us to approve deterioration factors for an emission
family based on emission measurements from similar engines if you have
already given us these data for certifying other engines in the same or
earlier model years. Use good engineering judgment to decide whether
the two engines are similar.
    (b) If you are unable to determine deterioration factors for an
emission family under paragraph (a) of this section, select engines,
subsystems, or components for testing. Determine deterioration factors
based on service accumulation and related testing. Include
consideration of wear and other causes of deterioration expected under
typical consumer use. Determine deterioration factors as follows:
    (1) Measure emissions from the emission-data engine at a low-hour
test point, at the midpoint of the useful life, and at the end of the
useful life, except as specifically allowed by this paragraph (b). You
may test at additional evenly spaced intermediate points. Collect
emission data using measurements to one more decimal place than the
emission standard.
    (2) Operate the engine over a representative duty cycle for a
period at least as long as the useful life (in hours). You may operate
the engine continuously. You may also use an engine installed in
nonroad equipment to accumulate service hours instead of running the
engine only in the laboratory.
    (3) In the case of dual-fuel or flexible-fuel engines, you may
accumulate service hours on a single emission-data engine using the
type or mixture of fuel expected to have the highest combustion and
exhaust temperatures. For dual-fuel engines, you must measure emissions
on each fuel type at each test point.
    (4) You may perform maintenance on emission-data engines as
described in Sec.  1054.125 and 40 CFR part 1065, subpart E. If you
change one or more spark plugs on an emission-data engine as allowed
under Sec.  1054.125, you must measure emissions before and after this
maintenance. If you clean or change an air filter on an emission-data
engine as allowed under Sec.  1054.125, you must measure emissions
before and after every second time you perform this maintenance. Use
the average values from these two measurements to calculate
deterioration factors. The emission-data engine must meet applicable
emission standards before and after maintenance to be considered in
compliance, as described in Sec.  1054.240(a) and (b).
    (5) Calculate your deterioration factor using a linear least-
squares fit of your test data, but treat the low-hour test point as
occurring at hour zero. Your deterioration factor is the ratio of the
calculated emission level at the point representing the full useful
life to the calculated emission level at zero hours.
    (6) If you test more than one engine to establish deterioration
factors, average the deterioration factors from all the engines before
rounding.
    (7) If your durability engine fails between 80 percent and 100
percent of useful life, you may use the last emission measurement as
the test point representing the full useful life, provided it occurred
after at least 80 percent of the useful life.
    (8) If your useful life is 1,000 hours or longer, and your
durability engine fails between 50 percent and 100 percent of useful
life, you may extrapolate your emission results to determine the
emission level representing the full useful life, provided emissions
were measured at least once after 50 percent of the useful life.
    (9) Use good engineering judgment for all aspects of the effort to
establish deterioration factors under this paragraph (b).
    (10) You may use other testing methods to determine deterioration
factors, consistent with good engineering judgment, as long as we
approve those methods in advance.
    (c) Include the following information in your application for
certification:
    (1) If you determine your deterioration factors based on test data
from a different emission family, explain why this is appropriate and
include all the emission measurements on which you base the
deterioration factor.
    (2) If you do testing to determine deterioration factors, describe
the form and extent of service accumulation, including the method you
use to accumulate hours.

Sec.  1054.250  What records must I keep and what reports must I send
to EPA?

    (a) Send the Designated Compliance Officer information related to
your U.S.-directed production volumes as described in Sec.  1054.345.
In addition, within 45 days after the end of the model year, you must
send us a report describing information about engines you produced
during the model year as follows:
    (1) State the total production volume for each engine family that
is not subject to reporting under Sec.  1054.345.
    (2) State the total production volume for any engine family for
which you produce engines after completing the reports required in
Sec.  1054.345.
    (3) If you produced exempted engines under the provisions of Sec. 
1054.625(j)(1), report the number of exempted engines you produced for
each engine model and identify the buyer or shipping destination for
each exempted engine.
    (4) For production volumes you report under this paragraph (a),
identify whether or not the figures include California sales. Include a
separate count of production volumes for California sales if those
figures are available.
    (b) Organize and maintain the following records:
    (1) A copy of all applications and any summary information you send us.
    (2) Any of the information we specify in Sec.  1054.205 that you
were not required to include in your application.
    (3) A detailed history of all emission-data engines. For each
engine, describe all of the following:
    (i) The emission-data engine's construction, including its origin
and buildup, steps you took to ensure that it represents production
engines, any components you built specially for it, and all the
components you include in your application for certification.
    (ii) How you accumulated engine operating hours (service
accumulation), including the dates and the number of hours accumulated.
    (iii) All maintenance, including modifications, parts changes, and
other service, and the dates and reasons for the maintenance.
    (iv) All your emission tests, including documentation on routine
and standard tests, as specified in part 40 CFR part 1065, and the date
and purpose of each test.
    (v) All tests to diagnose engine or emission control performance,
giving the date and time of each and the reasons for the test.
    (vi) Any other significant events.
    (4) Production figures for each emission family divided by assembly
plant.

[[Page 59275]]

    (5) Keep a list of engine identification numbers for all the
engines you produce under each certificate of conformity.
    (c) Keep data from routine emission tests (such as test cell
temperatures and relative humidity readings) for one year after we
issue the associated certificate of conformity. Keep all other
information specified in this section for eight years after we issue
your certificate.
    (d) Store these records in any format and on any media as long as
you can promptly send us organized, written records in English if we
ask for them. You must keep these records readily available. We may
review them at any time.

Sec.  1054.255  What decisions may EPA make regarding my certificate of
conformity?

    (a) If we determine your application is complete and shows that the
emission family meets all the requirements of this part and the Clean
Air Act, we will issue a certificate of conformity for your emission
family for that model year. We may make the approval subject to
additional conditions.
    (b) We may deny your application for certification if we determine
that your emission family fails to comply with emission standards or
other requirements of this part or the Clean Air Act. We will base our
decision on all available information. If we deny your application, we
will explain why in writing.
    (c) In addition, we may deny your application or suspend or revoke
your certificate if you do any of the following:
    (1) Refuse to comply with any testing, reporting, or bonding
requirements.
    (2) Submit false or incomplete information (paragraph (e) of this
section applies if this is fraudulent).
    (3) Render inaccurate any test data.
    (4) Deny us from completing authorized activities (see 40 CFR
1068.20). This includes a failure to provide reasonable assistance.
    (5) Produce engines or equipment for importation into the United
States at a location where local law prohibits us from carrying out
authorized activities.
    (6) Fail to supply requested information or amend your application
to include all engines or equipment being produced.
    (7) Take any action that otherwise circumvents the intent of the
Clean Air Act or this part.
    (d) We may void your certificate if you do not keep the records we
require or do not give us information as required under this part or
the Clean Air Act.
    (e) We may void your certificate if we find that you intentionally
submitted false or incomplete information.
    (f) If we deny your application or suspend, revoke, or void your
certificate, you may ask for a hearing (see Sec.  1054.820).

Subpart D--Production-line Testing

Sec.  1054.300  Applicability.

    This subpart specifies requirements for engine manufacturers to
test their production engines for exhaust emissions to ensure that the
engines are being produced as described in the application for
certification. The production-line verification described in 40 CFR
part 1060, subpart D, applies for equipment and components for
evaporative emissions.

Sec.  1054.301  When must I test my production-line engines?

    (a) If you produce engines that are subject to the requirements of
this part, you must test them as described in this subpart, except as
follows:
    (1) Small-volume engine manufacturers may omit testing under this
subpart.
    (2) We may exempt small-volume emission families from routine
testing under this subpart. Request this exemption in your application
for certification and include your basis for projecting a production
volume below 5,000 units. We will approve your request if we agree that
you have made good-faith estimates of your production volumes. Your
exemption is approved when we grant your certificate. You must promptly
notify us if your actual production exceeds 5,000 units during the
model year. If you exceed the production limit or if there is evidence
of a nonconformity, we may require you to test production-line engines
under this subpart, or under 40 CFR part 1068, subpart E, even if we
have approved an exemption under this paragraph (a)(2).
    (b) We may suspend or revoke your certificate of conformity for
certain engine families if your production-line engines do not meet the
requirements of this part or you do not fulfill your obligations under
this subpart (see Sec. Sec.  1054.325 and 1054.340).
    (c) Other regulatory provisions authorize us to suspend, revoke, or
void your certificate of conformity, or order recalls for engine
families, without regard to whether they have passed these production-
line testing requirements. The requirements of this subpart do not
affect our ability to do selective enforcement audits, as described in
40 CFR part 1068. Individual engines in families that pass these
production-line testing requirements must also conform to all
applicable regulations of this part and 40 CFR part 1068.
    (d) You may use alternate programs for testing production-line
engines in the following circumstances:
    (1) You may use analyzers and sampling systems that meet the field-
testing requirements of 40 CFR part 1065, subpart J, but not the
otherwise applicable requirements in 40 CFR part 1065 for laboratory
testing, to demonstrate compliance with emission standards if you
double the minimum sampling rate specified in Sec.  1054.310(b). Use
measured test results to determine whether engines comply with
applicable standards without applying a measurement allowance. This
alternate program does not require prior approval but we may disallow
use of this option where we determine that use of field-grade equipment
would prevent you from being able to demonstrate that your engines are
being produced to conform to the specifications in your application for
certification.
    (2) You may ask to use another alternate program for testing
production-line engines. In your request, you must show us that the
alternate program gives equal assurance that your products meet the
requirements of this part. We may waive some or all of this subpart's
requirements if we approve your alternate approach. For example, in
certain circumstances you may be able to give us equal assurance that
your products meet the requirements of this part by using less rigorous
measurement methods if you offset that by increasing the number of test
engines.
    (e) If you certify an engine family with carryover emission data,
as described in Sec.  1054.235(d), and these equivalent engine families
consistently pass the production-line testing requirements over the
preceding two-year period, you may ask for a reduced testing rate for
further production-line testing for that family. The minimum testing
rate is one engine per engine family. If we reduce your testing rate,
we may limit our approval to any number of model years. In determining
whether to approve your request, we may consider the number of engines
that have failed the emission tests.
    (f) We may ask you to make a reasonable number of production-line
engines available for a reasonable time so we can test or inspect them
for compliance with the requirements of this part.

[[Page 59276]]

Sec.  1054.305  How must I prepare and test my production-line engines?

    This section describes how to prepare and test production-line
engines. You must assemble the test engine in a way that represents the
assembly procedures for other engines in the engine family. You must
ask us to approve any deviations from your normal assembly procedures
for other production engines in the engine family.
    (a) Test procedures. Test your production-line engines using the
applicable testing procedures in subpart F of this part to show you
meet the emission standards in subpart B of this part.
    (b) Modifying a test engine. Once an engine is selected for testing
(see Sec.  1054.310), you may adjust, repair, prepare, or modify it or
check its emissions only if one of the following is true:
    (1) You document the need for doing so in your procedures for
assembling and inspecting all your production engines and make the
action routine for all the engines in the engine family.
    (2) This subpart otherwise specifically allows your action.
    (3) We approve your action in advance.
    (c) Engine malfunction. If an engine malfunction prevents further
emission testing, ask us to approve your decision to either repair the
engine or delete it from the test sequence.
    (d) Setting adjustable parameters. Before any test, we may require
you to adjust any adjustable parameter to any setting within its
physically adjustable range.
    (1) [Reserved]
    (2) We may specify adjustments within the physically adjustable
range by considering their effect on emission levels. We may also
consider how likely it is that someone will make such an adjustment
with in-use equipment.
    (3) We may specify an air-fuel ratio within the adjustable range
specified in Sec.  1054.115(b).
    (e) Stabilizing emission levels. Use good engineering judgment to
operate your engines before testing such that deterioration factors can
be applied appropriately. Determine the stabilization period as follows:
    (1) For engine families with a useful life at or below 300 hours,
operate the engine for the same number of hours before starting
emission measurements that you used for the emission-data engine,
within one hour. For example, if the emission-data engine operated for
8 hours before the low-hour emission test, operate the test engines for
7 to 9 hours before starting emission measurements.
    (2) For engine families with a useful life above 300 hours, operate
each engine for no more than the greater of two periods:
    (i) 12 hours.
    (ii) The number of hours you operated your emission-data engine for
certifying the engine family (see 40 CFR part 1065, subpart E, or the
applicable regulations governing how you should prepare your test engine).
    (f) Damage during shipment. If shipping an engine to a remote
facility for production-line testing makes necessary an adjustment or
repair, you must wait until after the initial emission test to do this
work. We may waive this requirement if the test would be impossible or
unsafe or if it would permanently damage the engine. Report to us, in
your written report under Sec.  1054.345, all adjustments or repairs
you make on test engines before each test.
    (g) Retesting after invalid tests. You may retest an engine if you
determine an emission test is invalid under subpart F of this part.
Explain in your written report reasons for invalidating any test and
the emission results from all tests. If we determine that you
improperly invalidated a test, we may require you to ask for our
approval for future testing before substituting results of the new
tests for invalid ones.

Sec.  1054.310  How must I select engines for production-line testing?

    (a) Test engines from each engine family as described in this
section based on test periods, as follows:
    (1) For engine families with projected U.S.-directed production
volume of at least 1,600, the test periods are consecutive quarters (3
months). However, if your annual production period is less than 12
months long, you may take the following alternative approach to define
quarterly test periods:
    (i) If your annual production period is 120 days or less, the whole
model year constitutes a single test period.
    (ii) If your annual production period is 121 to 210 days, divide
the annual production period evenly into two test periods.
    (iii) If your annual production period is 211 to 300 days, divide
the annual production period evenly into three test periods.
    (iv) If your annual production period is 301 days or longer, divide
the annual production period evenly into four test periods.
    (2) For engine families with projected U.S.-directed production
volume below 1,600, the whole model year constitutes a single test period.
    (b) Early in each test period, randomly select and test an engine
from the end of the assembly line for each engine family.
    (1) In the first test period for newly certified engines, randomly
select and test one more engine. Then, calculate the required sample
size for the model year as described in paragraph (c) of this section.
    (2) In later test periods of the same model year, combine the new
test result with all previous testing in the model year. Then,
calculate the required sample size for the model year as described in
paragraph (c) of this section.
    (3) In the first test period for engine families relying on
previously submitted test data, combine the new test result with the
last test result from the previous model year. Then, calculate the
required sample size for the model year as described in paragraph (c)
of this section. Use the last test result from the previous model year
only for this first calculation. For all subsequent calculations, use
only results from the current model year.
    (c) Calculate the required sample size for each engine family.
Separately calculate this figure for HC+NOX and CO. The
required sample size is the greater of these calculated values. Use the
following equation:
[GRAPHIC] [TIFF OMITTED] TR08OC08.095

Where:

N = Required sample size for the model year.
t95 = 95% confidence coefficient, which depends on the
number of tests completed, n, as specified in the table in paragraph
(c)(1) of this section. It defines 95% confidence intervals for a
one-tail distribution.
[sigma] = Test sample standard deviation (see paragraph (c)(2) of
this section).
x = Mean of emission test results of the sample.
STD = Emission standard (or family emission limit, if applicable).

    (1) Determine the 95% confidence coefficient, t\95\, from the
following table:

--------------------------------------------------------------------------------------------------------------------------------------------------------
                                 n                                         t95               n               t95               n               t95
--------------------------------------------------------------------------------------------------------------------------------------------------------
 2.................................................................            6.31               12             1.80               22             1.72

[[Page 59277]]

 3.................................................................            2.92               13             1.78               23             1.72
 4.................................................................            2.35               14             1.77               24             1.71
 5.................................................................            2.13               15             1.76               25             1.71
 6.................................................................            2.02               16             1.75               26             1.71
 7.................................................................            1.94               17             1.75               27             1.71
 8.................................................................            1.90               18             1.74               28             1.70
 9.................................................................            1.86               19             1.73               29             1.70
10.................................................................            1.83               20             1.73               30             1.70
11.................................................................            1.81               21             1.72              31+             1.65
--------------------------------------------------------------------------------------------------------------------------------------------------------

    (2) Calculate the standard deviation, for the test sample using the
following formula:
[GRAPHIC] [TIFF OMITTED] TR08OC08.096

Where:

Xi = Emission test result for an individual engine.
n = The number of tests completed in an engine family.

    (d) Use final deteriorated test results to calculate the variables
in the equations in paragraph (c) of this section (see Sec.  1054.315(a)(2)).
    (e) After each new test, recalculate the required sample size using
the updated mean values, standard deviations, and the appropriate 95-
percent confidence coefficient.
    (f) Distribute the remaining engine tests evenly throughout the
rest of the year. You may need to adjust your schedule for selecting
engines if the required sample size changes. If your scheduled
quarterly testing for the remainder of the model year is sufficient to
meet the calculated sample size, you may wait until the next quarter to
do additional testing. Continue to randomly select engines from each
engine family.
    (g) Continue testing until one of the following things happens:
    (1) After completing the minimum number of tests required in
paragraph (b) of this section, the number of tests completed in an
engine family, n, is greater than the required sample size, N, and the
sample mean, x, is less than or equal to the emission standard. For
example, if N = 5.1 after the fifth test, the sample-size calculation
does not allow you to stop testing.
    (2) The engine family does not comply according to Sec.  1054.315.
    (3) You test 30 engines from the engine family.
    (4) You test one percent of your projected annual U.S.-directed
production volume for the engine family, rounded to the nearest whole
number. Do not count an engine under this paragraph (g)(4) if it fails
to meet an applicable emission standard.
    (5) You choose to declare that the engine family does not comply
with the requirements of this subpart.
    (h) If the sample-size calculation allows you to stop testing for
one pollutant but not another, you must continue measuring emission
levels of all pollutants for any additional tests required under this
section. However, you need not continue making the calculations
specified in this subpart for the pollutant for which testing is not
required. This paragraph (h) does not affect the number of tests
required under this section, the required calculations in Sec. 
1054.315, or the remedial steps required under Sec.  1054.320.
    (i) You may elect to test more randomly chosen engines than we
require under this section. Include these engines in the sample-size
calculations.

Sec.  1054.315  How do I know when my engine family fails the
production-line testing requirements?

    This section describes the pass-fail criteria for the production-
line testing requirements. We apply these criteria on an emission-
family basis. See Sec.  1054.320 for the requirements that apply to
individual engines that fail a production-line test.
    (a) Calculate your test results as follows:
    (1) Initial and final test results. Calculate and round the test
results for each engine. If you do several tests on an engine,
calculate the initial results for each test, then add all the test
results together and divide by the number of tests. Round this final
calculated value for the final test results on that engine.
    (2) Final deteriorated test results. Apply the deterioration factor
for the engine family to the final test results (see Sec. 
1054.240(c)).
    (3) Round deteriorated test results. Round the results to the
number of decimal places in the emission standard expressed to one more
decimal place.
    (b) Construct the following CumSum Equation for each engine family
for HC+NOX and CO emissions:

Ci = Max [0 or Ci-1 + Xi-(STD +
0.25 x [sigma])]

Where:

Ci = The current CumSum statistic.
Ci-1 = The previous CumSum statistic. For the first test,
the CumSum statistic is 0 (i.e., C1 = 0).
Xi = The current emission test result for an individual engine.
STD = Emission standard (or family emission limit, if applicable).

    (c) Use final deteriorated test results to calculate the variables
in the equation in paragraph (b) of this section (see Sec.  1054.315(a)).
    (d) After each new test, recalculate the CumSum statistic.
    (e) If you test more than the required number of engines, include
the results from these additional tests in the CumSum Equation.
    (f) After each test, compare the current CumSum statistic,
Ci, to the recalculated Action Limit, H, defined as H = 5.0
x [sigma].
    (g) If the CumSum statistic exceeds the Action Limit in two
consecutive tests, the engine family fails the production-line testing
requirements of this subpart. Tell us within ten working days if this
happens. You may request to amend the application for certification to
raise the FEL of the entire engine family as described in Sec.  1054.225(f).
    (h) If you amend the application for certification for an engine
family under Sec.  1054.225, do not change any previous calculations of
sample size or CumSum statistics for the model year.

Sec.  1054.320  What happens if one of my production-line engines fails
to meet emission standards?

    (a) If you have a production-line engine with final deteriorated
test results exceeding one or more emission standards (see Sec. 
1054.315(a)), the certificate of conformity is automatically suspended
for that failing engine. You must take the following actions before
your certificate of conformity can cover that engine:
    (1) Correct the problem and retest the engine to show it complies
with all emission standards.
    (2) Include the test results and describe the remedy for each engine in

[[Page 59278]]

the written report required under Sec.  1054.345.
    (b) You may request to amend the application for certification to
raise the FEL of the entire engine family at this point (see Sec. 
1054.225).

Sec.  1054.325  What happens if an engine family fails the production-
line testing requirements?

    (a) We may suspend your certificate of conformity for an engine
family if it fails under Sec.  1054.315. The suspension may apply to
all facilities producing engines from an engine family even if you find
noncompliant engines only at one facility.
    (b) We will tell you in writing if we suspend your certificate in
whole or in part. We will not suspend a certificate until at least 15
days after the engine family fails. The suspension is effective when
you receive our notice.
    (c) Up to 15 days after we suspend the certificate for an engine
family, you may ask for a hearing (see Sec.  1054.820). If we agree
before a hearing occurs that we used erroneous information in deciding
to suspend the certificate, we will reinstate the certificate.
    (d) Section 1054.335 specifies steps you must take to remedy the
cause of the engine family's production-line failure. All the engines
you have produced since the end of the last test period are presumed
noncompliant and should be addressed in your proposed remedy. We may
require you to apply the remedy to engines produced earlier if we
determine that the cause of the failure is likely to have affected the
earlier engines.
    (e) You may request to amend the application for certification to
raise the FEL of the engine family before or after we suspend your
certificate as described in Sec.  1054.225(f). We will approve your
request if the failure is not caused by a defect and it is clear that
you used good engineering judgment in establishing the original FEL.

Sec.  1054.330  May I sell engines from an engine family with a
suspended certificate of conformity?

    You may sell engines that you produce after we suspend the engine
family's certificate of conformity under Sec.  1054.315 only if one of
the following occurs:
    (a) You test each engine you produce and show it complies with
emission standards that apply.
    (b) We conditionally reinstate the certificate for the engine
family. We may do so if you agree to recall all the affected engines
and remedy any noncompliance at no expense to the owner if later
testing shows that the engine family still does not comply.

Sec.  1054.335  How do I ask EPA to reinstate my suspended certificate?

    (a) Send us a written report asking us to reinstate your suspended
certificate. In your report, identify the reason for noncompliance,
propose a remedy for the engine family, and commit to a date for
carrying it out. In your proposed remedy include any quality control
measures you propose to keep the problem from happening again.
    (b) Give us data from production-line testing that shows the
remedied engine family complies with all the emission standards that apply.

Sec.  1054.340  When may EPA revoke my certificate under this subpart
and how may I sell these engines again?

    (a) We may revoke your certificate for an engine family in the
following cases:
    (1) You do not meet the reporting requirements.
    (2) Your engine family fails to comply with the requirements of
this subpart and your proposed remedy to address a suspended
certificate under Sec.  1054.335 is inadequate to solve the problem or
requires you to change the engine's design or emission control system.
    (b) To sell engines from an engine family with a revoked
certificate of conformity, you must modify the engine family and then
show it complies with the requirements of this part.
    (1) If we determine your proposed design change may not control
emissions for the engine's full useful life, we will tell you within
five working days after receiving your report. In this case we will
decide whether production-line testing will be enough for us to
evaluate the change or whether you need to do more testing.
    (2) Unless we require more testing, you may show compliance by
testing production-line engines as described in this subpart.
    (3) We will issue a new or updated certificate of conformity when
you have met these requirements.

Sec.  1054.345  What production-line testing records must I send to EPA?

    (a) Within 45 days of the end of each test period, send us a report
with the following information:
    (1) Describe any facility used to test production-line engines and
state its location.
    (2) State the total U.S.-directed production volume and number of
tests for each engine family.
    (3) Describe how you randomly selected engines.
    (4) Describe each test engine, including the engine family's
identification and the engine's model year, build date, model number,
identification number, and number of hours of operation before testing.
    (5) Identify how you accumulated hours of operation on the engines
and describe the procedure and schedule you used.
    (6) Provide the test number; the date, time and duration of
testing; test procedure; all initial test results; final test results;
and final deteriorated test results for all tests. Provide the emission
results for all measured pollutants. Include information for both valid
and invalid tests and the reason for any invalidation.
    (7) Describe completely and justify any nonroutine adjustment,
modification, repair, preparation, maintenance, or test for the test
engine if you did not report it separately under this subpart. Include
the results of any emission measurements, regardless of the procedure
or type of engine.
    (8) Provide the CumSum analysis required in Sec.  1054.315 and the
sample-size calculation required in Sec.  1054.310 for each engine family.
    (9) Report on each failed engine as described in Sec.  1054.320.
    (10) State the date the test period ended for each engine family.
    (b) We may ask you to add information to your written report so we
can determine whether your new engines conform with the requirements of
this subpart. We may also ask you to send less information.
    (c) An authorized representative of your company must sign the
following statement:

    We submit this report under sections 208 and 213 of the Clean
Air Act. Our production-line testing conformed completely with the
requirements of 40 CFR part 1054. We have not changed production
processes or quality-control procedures for test engines in a way
that might affect emission controls. All the information in this
report is true and accurate to the best of my knowledge. I know of
the penalties for violating the Clean Air Act and the regulations.
(Authorized Company Representative)

    (d) Send electronic reports of production-line testing to the
Designated Compliance Officer using an approved information format. If
you want to use a different format, send us a written request with
justification for a waiver.
    (e) We will send copies of your reports to anyone from the public
who asks for them. Section 1054.815 describes how we treat information
you consider confidential.

Sec.  1054.350  What records must I keep?

    (a) Organize and maintain your records as described in this
section. We may review your records at any time.

[[Page 59279]]

    (b) Keep paper or electronic records of your production-line
testing for eight years after you complete all the testing required for
an engine family in a model year.
    (c) Keep a copy of the written reports described in Sec.  1054.345.
    (d) Keep the following additional records:
    (1) A description of all test equipment for each test cell that you
can use to test production-line engines.
    (2) The names of supervisors involved in each test.
    (3) The name of anyone who authorizes adjusting, repairing,
preparing, or modifying a test engine and the names of all supervisors
who oversee this work.
    (4) If you shipped the engine for testing, the date you shipped it,
the associated storage or port facility, and the date the engine
arrived at the testing facility.
    (5) Any records related to your production-line tests that are not
in the written report.
    (6) A brief description of any significant events during testing
not otherwise described in the written report or in this section.
    (7) Any information specified in Sec.  1054.345 that you do not
include in your written reports.
    (e) If we ask, you must give us a more detailed description of
projected or actual production figures for an engine family. We may ask
you to divide your production figures by maximum engine power,
displacement, fuel type, or assembly plant (if you produce engines at
more than one plant).
    (f) Keep records of the engine identification number for each
engine you produce under each certificate of conformity. You may
identify these numbers as a range. Give us these records within 30 days
if we ask for them.
    (g) We may ask you to keep or send other information necessary to
implement this subpart.

Subpart E--In-use Testing

Sec.  1054.401  General provisions.

    We may perform in-use testing of any engines or equipment subject
to the standards of this part. We will consult with you as needed for
information or special equipment related to testing your engines.

Subpart F--Test Procedures

Sec.  1054.501  How do I run a valid emission test?

    (a) Applicability. This subpart is addressed to you as a
manufacturer but it applies equally to anyone who does testing for you,
and to us when we perform testing to determine if your engines or
equipment meet emission standards.
    (b) General requirements. Use the equipment and procedures for
spark-ignition engines in 40 CFR part 1065 to determine whether engines
meet the exhaust emission standards, as follows:
    (1) Measure the emissions of all regulated pollutants as specified
in Sec.  1054.505 and 40 CFR part 1065. See Sec.  1054.650 for special
provisions that apply for variable-speed engines (including engines
shipped without governors).
    (2) Use the fuels and lubricants specified in 40 CFR part 1065,
subpart H, for all the testing we require in this part. Except as
specified in paragraph (d) of this section, use gasoline meeting the
specifications described in 40 CFR 1065.710 for general testing. For
service accumulation, use the test fuel or any commercially available
fuel that is representative of the fuel that in-use engines will use.
You may alternatively use gasoline blended with ethanol as follows:
    (i) For handheld engines, you may use the ethanol-blended fuel for
certifying engines under this part without our advance approval. If you
use the blended fuel for certifying a given engine family, you may also
use it for production-line testing or any other testing you perform for
that engine family under this part. If you use the blended fuel for
certifying a given engine family, we may use the blended fuel or the
specified gasoline test fuel with that engine family.
    (ii) For nonhandheld engines, you may use the blended fuel for
certifying engines under this part without our advance approval. If you
use the blended fuel for certifying a given engine family, you must
also use it for production-line testing or any other testing you
perform for that engine family under this part. If the certification of
all your Class I (or Class II) engine families in a given model year is
based on test data collected using the blended fuel, we will also use
the blended fuel for testing your Class I (or Class II) engines. If the
certification of some but not all of your Class I (or Class II) engine
families in a given model year is based on test data collected using
the blended fuel, we may use the blended fuel or the specified gasoline
test fuel for testing any of your Class I (or Class II) engines.
    (iii) The blended fuel must consist of a mix of gasoline meeting
the specifications described in 40 CFR 1065.710 for general testing and
fuel-grade ethanol meeting the specifications described in 40 CFR
1060.501(c) such that the blended fuel has 10.0&plusmn;1.0 percent
ethanol by volume. You may also use ethanol with a higher or lower
purity if you show us that it will not affect your ability to
demonstrate compliance with the applicable emission standards. You do
not need to measure the ethanol concentration of such blended fuels and
may instead calculate the blended composition by assuming that the
ethanol is pure and mixes perfectly with the base fuel.
    (iv) You may ask to use the provisions of this paragraph (b)(2) for
a blended test fuel containing less than 10 percent ethanol if your
engine is subject to emission standards from other organizations that
specify testing with that fuel. If we approve testing with such a fuel,
we may test your engines with that test fuel, with gasoline, or with a
10-percent ethanol blend.
    (3) Ambient conditions for duty-cycle testing must be within ranges
specified in 40 CFR 1065.520, subject to the provisions of Sec. 
1054.115(c).
    (i) Corrections. Emissions may not be corrected for the effects of
test temperature or pressure. You may correct emissions for humidity as
specified in 40 CFR 1065.670.
    (ii) Intake air temperature. Measure engine intake air temperature
as described in 40 CFR 1065.125, and control it if necessary,
consistent with good engineering judgment. For example, since the
purpose of this requirement is to ensure that the measured air
temperature is consistent with the intake air temperature that would
occur during in-use operation at the same ambient temperature, do not
cool the intake air and do not measure air temperature at a point where
engine heat affects the temperature measurement.
    (4) The provisions of 40 CFR 1065.405 describes how to prepare an
engine for testing. However, you may consider emission levels stable
without measurement after 12 hours of engine operation, except for the
following special provisions that apply for engine families with a
useful life of 300 hours or less:
    (i) We will not approve a stabilization period longer than 12 hours
even if you show that emissions are not yet stabilized.
    (ii) Identify the number of hours you use to stabilize engines for
low-hour emission measurements. You may consider emissions stable at
any point less than 12 hours. For example, you may choose a point at
which emission levels reach a low value before the effects of
deterioration are established.

[[Page 59280]]

    (5) Prepare your engines for testing by installing a governor that
you normally use on production engines, consistent with Sec. Sec. 
1054.235(b) and 1054.505.
    (6) During testing, supply the engine with fuel in a manner
consistent with how it will be supplied with fuel in use. If you sell
engines with complete fuel systems and your production engines will be
equipped with a vapor line that routes running loss vapors into the
engine's intake system, measure exhaust emissions using a complete fuel
system representing a production configuration that sends fuel vapors
to the test engine's intake system in a way that represents the
expected in-use operation. You may alternatively demonstrate by
engineering analysis that your engines will continue to meet emission
standards for any amount of running loss vapor that can reasonably be
expected during in-use operation.
    (7) Determine the carbon mass fraction of fuel, wc, using a
calculation based on measured fuel properties as described in 40 CFR
1065.655(d)(1). You may not use the default values specified in 40 CFR
1065.655(d)(2).
    (c) Special and alternate procedures. You may use special or
alternate procedures to the extent we allow them under 40 CFR 1065.10.
The following additional provisions apply:
    (1) If you are unable to run the test cycle specified in this part
for your engine, use an alternate test cycle that will result in a
cycle-weighted emission measurement equivalent to the expected average
in-use emissions. This cycle must be approved under 40 CFR 1065.10.
    (2) Describe in your application for certification any specially
designed fixtures or other hardware if they are needed for proper
testing of your engines. (Note: You do not need to specify the size or
performance characteristics of engine dynamometers.) You must send us
these fixtures or other hardware if we ask for them. We may waive the
requirement of Sec.  1054.205(aa) to identify a test facility in the
United States for such engine families as long as the projected U.S.-
directed production volume of all your engine families using the
provisions of this paragraph (c)(2) is less than 5 percent of your
total production volume from all engine families certified under this
part 1054.
    (d) Wintertime engines. You may test wintertime engines at the
ambient temperatures specified in 40 CFR 1065.520, even though this
does not represent in-use operation for these engines (40 CFR
1065.10(c)(1)). In this case, you may use good engineering judgment to
modify the test engine as needed to achieve intake temperatures that
are analogous to in-use conditions. You may also test wintertime
engines at reduced ambient temperatures as specified in 40 CFR
1051.505. Use the gasoline specified for low-temperature testing only
if you test your engines at ambient temperatures below 20 [deg]C.

Sec.  1054.505  How do I test engines?

    (a) This section describes how to test engines under steady-state
conditions. For handheld engines you must perform tests with discrete-
mode sampling. For nonhandheld engines we allow you to perform tests
with either discrete-mode or ramped-modal testing methods. You must use
the same modal testing method for certification and all other testing
you perform for an engine family. If we test your engines to confirm
that they meet emission standards, we will use the modal testing method
you select for your own testing. If you submit certification test data
collected with both discrete-mode and ramped-modal testing (either in
your original application or in an amendment to your application),
either method may be used for subsequent testing. We may also perform
other testing as allowed by the Clean Air Act. Conduct duty-cycle
testing as follows:
    (1) For discrete-mode testing, sample emissions separately for each
mode, then calculate an average emission level for the whole cycle
using the weighting factors specified for each mode. In each mode,
operate the engine for at least 5 minutes, then sample emissions for at
least 1 minute. Control engine speed as specified in this section. Use
one of the following methods for confirming torque values for
nonhandheld engines:
    (i) Calculate torque-related cycle statistics and compare with the
established criteria as specified in 40 CFR 1065.514 to confirm that
the test is valid.
    (ii) Evaluate each mode separately to validate the duty cycle. All
torque feedback values recorded during non-idle sampling periods must
be within &plusmn;2 percent of the reference value or within 0.27 N[middot]m of the reference value, whichever is greater.
Also, the mean torque value during non-idle sampling periods must be
within &plusmn;1 percent of the reference value or &plusmn;0.12
N[middot]m of the reference value, whichever is greater. Control torque
during idle as specified in paragraph (c) of this section.
    (2) For ramped-modal testing, start sampling at the beginning of
the first mode and continue sampling until the end of the last mode.
Calculate emissions and cycle statistics the same as for transient
testing as specified in 40 CFR part 1065. Unless we specify otherwise,
you may simulate the governor for ramped-modal testing consistent with
good engineering judgment.
    (b) Measure emissions by testing the engine on a dynamometer with
the test procedures for constant-speed engines in 40 CFR part 1065
while using one of the steady-state duty cycles identified in this
paragraph (b) to determine whether it meets the exhaust emission
standards specified in Sec.  1054.101(a). This requirement applies for
all engines, including those not meeting the definition of ``constant-
speed engine'' in 40 CFR 1065.1001.
    (1) For handheld engines, use the two-mode duty cycle described in
paragraph (a) of Appendix II of this part. Establish an engine's rated
speed as follows:
    (i) For ungoverned handheld engines used in fixed-speed
applications all having approximately the same nominal in-use operating
speed, hold engine speed within 350 rpm of the nominal speed for
testing. We may allow you to include in your engine family without
additional testing a small number engines that will be installed such
that they have a different nominal speed. If your engine family
includes a majority of engines with approximately the same nominal in-
use operating speed and a substantial number of engines with different
nominal speeds, you must test engines as specified in this paragraph
(b)(1)(i) and paragraph (b)(1)(ii) of this section.
    (ii) For ungoverned handheld engines for which there is not a
dominant value for nominal in-use operating speeds, hold engine speed
within 350 rpm of the point at which the engine generates maximum power.
    (iii) For governed handheld engines, hold engine speed at maximum
test speed, as defined in 40 CFR 1065.1001.
    (2) For nonhandheld engines, use the six-mode duty cycle or the
corresponding ramped-modal cycle described in paragraph (b) of Appendix
II of this part. Control engine speeds and torques during idle mode as
specified in paragraph (c) of this section and during full-load
operating modes as specified in paragraph (d) of this section. For all
other modes, control torque as needed to meet the cycle-validation
criteria in 40 CFR 1065.514; control the engine speed to within 5
percent of the nominal speed specified in paragraph (d) of this section
or let the installed governor (in the production configuration) control
engine speed. The governor may be adjusted before emission sampling to
target the nominal speed identified in paragraph (d) of this section,
but the installed governor must control engine speed throughout the

[[Page 59281]]

emission-sampling period whether the governor is adjusted or not. Note
that ramped-modal testing involves continuous sampling, so governor
adjustments may not occur during such a test. Note also that our
testing may involve running the engine with the governor in the
standard configuration even if you adjust the governor as described in
this paragraph (a)(2) for certification or production-line testing.
    (c) During idle mode for nonhandheld engines, operate the engine
with the following parameters:
    (1) Allow the engine to operate at the idle speed determined by the
installed governor. If any production engines from the engine family
have a user-selectable idle speed, operate the engine with an installed
governor that controls engine speed to the lowest available speed setting.
    (2) Keep engine torque under 5 percent of the nominal torque value
for Mode 1.
    (3) You must conduct testing at the idle mode even if the allowable
torque values overlap with those for another specified mode.
    (d) During full-load operation for nonhandheld engines, operate the
engine with the following parameters:
    (1) In normal circumstances, select a test speed of either 3060 rpm
or 3600 rpm that is most appropriate for the engine family. If all the
engines in the engine family are used in intermediate-speed equipment,
select a test speed of 3060 rpm. The test associated with intermediate-
speed operation is referred to as the A Cycle. If all the engines in
the engine family are used in rated-speed equipment, select a test
speed of 3600 rpm. The test associated with rated-speed operation is
referred to as the B Cycle. If an engine family includes engines used
in both intermediate-speed equipment and rated-speed equipment, select
the test speed for emission-data engines that will result in worst-case
emissions. In unusual circumstances, you may ask to use a test speed
different than that specified in this paragraph (d)(1) if it better
represents in-use operation.
    (2) Operate the engine ungoverned at wide-open throttle at the test
speed established in paragraph (d)(1) of this section until the engine
reaches thermal stability as described in 40 CFR 1065.530(a)(2)(ii).
Record the torque value after stabilization. Use this value for the
full-load torque setting and for denormalizing the rest of the duty cycle.
    (3) Control engine speed during emission sampling to stay within 5
percent of the nominal speed identified in paragraph (d)(1) of this section.
    (4) The provisions of this paragraph (d) apply instead of the
engine mapping procedures in 40 CFR 1065.510.
    (e) See 40 CFR part 1065 for detailed specifications of tolerances
and calculations.

Sec.  1054.520  What testing must I perform to establish deterioration
factors?

    Sections 1054.240 and 1054.245 describe the required methods for
testing to establish deterioration factors for an emission family.

Subpart G--Special Compliance Provisions

Sec.  1054.601  What compliance provisions apply to these engines?

    (a) Engine and equipment manufacturers, as well as owners,
operators, and rebuilders of engines subject to the requirements of
this part, and all other persons, must observe the provisions of this
part, the requirements and prohibitions in 40 CFR part 1068, and the
provisions of the Clean Air Act.
    (b) Note that the provisions of 40 CFR 1068.103(f) prohibit engine
manufacturers from deviating from normal production and inventory
practices to stockpile engines with a date of manufacture before new or
changed emission standards take effect. If your normal practice for
producing engines subject to this part 1054 includes maintaining
engines in inventory for some engine families for more than 12 months,
you must get our prior approval to continue this practice for model
years in which emission standards change. Include in your request
information showing that this is necessary and it is consistent with
your normal business practice. Unless we specify otherwise, include
relevant inventory and production records from the preceding eight
years. Note that 40 CFR 1068.103(f) applies to any engines inventoried
beyond your normal practice and authorizes us to review your records to
verify your normal practices, whether or not you maintain the engines
in inventory for more than 12 months.

Sec.  1054.610  What is the exemption for delegated final assembly?

    The provisions of 40 CFR 1068.261 related to delegated final
assembly do not apply for handheld engines certified under this part
1054. The provisions of 40 CFR 1068.261 apply for nonhandheld engines,
with the following exceptions and clarifications:
    (a) Through the 2014 model year, you may use the provisions of this
section for engines you sell to a distributor, where you establish a
contractual arrangement in which you designate the distributor to be
your agent in all matters related to compliance with the requirements
of this section. Identify each of the distributors you intend to
designate as your agent under this paragraph (a) in your application
for certification. You may continue to use the provisions of this
paragraph (a) this for later model years for specific distributors if
we approve it based on your clear and convincing demonstration that
each distributor can be expected to comply fully with the requirements
of this section and 40 CFR 1068.261. We may set additional conditions
beyond the provisions specified in this section to ensure that all
engines will be in a certified configuration when installed by the
equipment manufacturer.
    (b) If you identify distributors as your agents under paragraph (a)
of this section, you must perform or arrange for audits of all
participating distributors and equipment manufacturers based on the
following auditing rate instead of the provisions specified in 40 CFR
1068.261(d)(3)(i) and (ii):
    (1) If you sell engines to 48 or more equipment manufacturers under
the provisions of this section, you must annually perform or arrange
for audits of twelve equipment manufacturers to whom you sell engines
under this section. To select individual equipment manufacturers,
divide all the affected equipment manufacturers into quartiles based on
the number of engines they buy from you; select equal numbers of
equipment manufacturers from each quartile each model year as much as
possible. Vary the equipment manufacturers selected for auditing from
year to year, though audits may be repeated in later model years if you
find or suspect that a particular equipment manufacturer is not
properly installing aftertreatment devices.
    (2) If you sell engines to fewer than 48 equipment manufacturers
under the provisions of this section, set up a plan to perform or
arrange for audits of each equipment manufacturer on average once every
four model years.

Sec.  1054.612  What special provisions apply for equipment
manufacturers modifying certified nonhandheld engines?

    The provisions of this section apply for all emission families
through the 2014 model year; starting with the 2015 model year, these
provisions are limited to small-volume emission families.
    (a) General provisions. If you buy certified nonhandheld engines
for installation in equipment you produce, but you install the engines
such that they use intake or exhaust systems that are not part of the
originally certified

[[Page 59282]]

configuration, you become the engine manufacturer for those engines and
must certify that they will meet emission standards. We will allow you
to utilize the provisions for simplified certification specified in
paragraph (b) of this section, as long as your design stays within the
overall specifications from the original engine manufacturer (such as
exhaust backpressure) and you use a catalyst as described in the
original engine manufacturer's application for certification.
    (b) Simplified certification. You must perform testing with an
emission-data engine to show that you meet exhaust emission standards;
however, you may use the deterioration factor from the original engine
manufacturer. The production-line testing requirements in subpart D of
this part do not apply for engines certified under this section. You
must meet all the other requirements that apply to engine manufacturers
for engines subject to standards under this part. The engine family
must have the same useful life value specified by the original engine
manufacturer for that engine. In your application for certification
describe any differences between the original engine manufacturer's
design and yours and explain why the deterioration data generated by
the original engine manufacturer is appropriate for your configuration.
    (c) Engine exemption. As an engine manufacturer, you may produce
nonconforming engines for equipment manufacturers as allowed under this
section. You do not have to request this exemption for your engines,
but you must have written assurance from equipment manufacturers that
they need a certain number of exempted engines under this section. Add
a removable label to the engines as described in 40 CFR 1068.262.

Sec.  1054.615  What is the exemption for engines certified to
standards for Large SI engines?

    (a) An engine is exempt from the requirements of this part if it is
in an emission family that has a valid certificate of conformity
showing that it meets emission standards and other requirements under
40 CFR part 1048 for the appropriate model year.
    (b) The only requirements or prohibitions from this part that apply
to an engine that is exempt under this section are in this section.
    (c) If your engines do not have the certificate required in
paragraph (a) of this section, they will be subject to the provisions
of this part. Introducing these engines into U.S. commerce without a
valid exemption or certificate of conformity violates the prohibitions
in 40 CFR 1068.101(a).
    (d) Engines exempted under this section are subject to all the
requirements affecting engines under 40 CFR part 1048, including
evaporative emission standards. The requirements and restrictions of 40
CFR part 1048 apply to anyone manufacturing these engines, anyone
manufacturing equipment that uses these engines, and all other persons
in the same manner as if these were nonroad spark-ignition engines
above 19 kW.
    (e) Engines exempted under this section may not generate or use
emission credits under this part 1054.

Sec.  1054.620  What are the provisions for exempting engines used
solely for competition?

    The provisions of this section apply for new engines and equipment
built on or after January 1, 2010.
    (a) We may grant you an exemption from the standards and
requirements of this part for a new engine on the grounds that it is to
be used solely for competition. The requirements of this part, other
than those in this section, do not apply to engines that we exempt for
use solely for competition.
    (b) We will exempt engines that we determine will be used solely
for competition. The basis of our determination is described in
paragraphs (c) and (d) of this section. Exemptions granted under this
section are good for only one model year and you must request renewal
for each subsequent model year. We will not approve your renewal
request if we determine the engine will not be used solely for competition.
    (c) Engines meeting all the following criteria are considered to be
used solely for competition:
    (1) Neither the engine nor any equipment containing the engine may
be displayed for sale in any public dealership or otherwise offered for
sale to the general public. Note that this does not preclude display of
these engines as long as they are not available for sale to the general
public.
    (2) Sale of the equipment in which the engine is installed must be
limited to professional competition teams, professional competitors, or
other qualified competitors. For replacement engines, the sale of the
engine itself must be limited to professional racing teams,
professional racers, other qualified racers, or to the original
equipment manufacturer.
    (3) The engine and the equipment in which it is installed must have
performance characteristics that are substantially superior to
noncompetitive models.
    (4) The engines are intended for use only as specified in paragraph
(e) of this section.
    (d) You may ask us to approve an exemption for engines not meeting
the criteria listed in paragraph (c) of this section as long as you
have clear and convincing evidence that the engines will be used solely
for competition.
    (e) Engines are considered to be used solely for competition only
if their use is limited to competition events sanctioned by a state or
federal government agency or another widely recognized public
organization with authorizing permits for participating competitors.
Operation of such engines may include only racing events, trials to
qualify for racing events, and practice associated with racing events.
Authorized attempts to set speed records are also considered racing
events. Engines will not be considered to be used solely for
competition if they are ever used for any recreational or other
noncompetitive purpose. Any use of exempt engines in recreational
events is a violation of 40 CFR 1068.101(b)(4).
    (f) You must permanently label engines exempted under this section
to clearly indicate that they are to be used only for competition.
Failure to properly label an engine will void the exemption for that engine.
    (g) If we request it, you must provide us any information we need
to determine whether the engines are used solely for competition. This
would generally include documentation regarding the number of engines
and the ultimate purchaser of each engine as well as any documentation
showing an equipment manufacturer's request for an exempted engine.
Keep these records for five years.

Sec.  1054.625  What requirements apply under the Transition Program
for Equipment Manufacturers?

    The provisions of this section allow equipment manufacturers to
produce equipment with Class II engines that are subject to less
stringent exhaust emission standards after the Phase 3 emission
standards begin to apply. To be eligible to use these provisions, you
must follow all the instructions in this section. See Sec.  1054.626
for requirements that apply specifically to companies that manufacture
equipment outside the United States and to companies that import such
equipment without manufacturing it. Engines and equipment you produce
under this section are exempt from the prohibitions in 40 CFR
1068.101(a)(1) with respect to exhaust emissions,

[[Continued on page 59283]]

 
 


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