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Identification of Ozone Areas Attaining the 1-Hour Standard and to Which the 1-Hour Standard Is No Longer Applicable

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[Federal Register: June 5, 1998 (Volume 63, Number 108)]
[Rules and Regulations]
[Page 31013-31096]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr05jn98-29]


[[Page 31013]]

_______________________________________________________________________

Part III





Environmental Protection Agency





_______________________________________________________________________



40 CFR Part 81



Identification of Ozone Areas Attaining the 1-Hour Standard and to
Which the     1-Hour Standard Is No Longer Applicable; Final Rule


[[Page 31014]]



ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 81

[FRL-6105-6]


Identification of Ozone Areas Attaining the 1-Hour Standard and
to Which the 1-Hour Standard Is No Longer Applicable

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: On January 16, 1998, the EPA published a direct final rule to
identify ozone areas where the 1-hour standard is no longer applicable.
The 60-day comment period concluded on March 17, 1998. A total of ten
adverse comment letters were received in response to this direct final
rule. Therefore, on March 16, 1998, the Agency published a withdrawal
of the direct final rule, thus converting the direct final rule to a
proposal. Independent of the comments received, the EPA identified
typographical errors of certain areas listed in its regulations on
designation of areas for air quality planning purposes. This final rule
summarizes all of the comments and EPA's responses, corrects the
typographical errors of certain areas, and finalizes the determination
that the 1-hour standard no longer applies for specific areas
identified in this final action.

EFFECTIVE DATE: This action will be effective June 5, 1998.

ADDRESSES: Copies of the public comments and EPA's responses are
available for inspection at the following address: Air and Radiation
Docket and Information Center (6101), Attention: Docket No. A-97-42,
U.S. Environmental Protection Agency, 401 M Street SW, Room M-1500,
Washington, DC 20460, telephone (202) 260-7548, between 8:00 a.m. and
4:00 p.m., Monday through Friday, excluding legal holidays.

FOR FURTHER INFORMATION CONTACT: Annie Nikbakht (policy) or Barry
Gilbert (air quality data), Office of Air Quality Planning and
Standards, Air Quality Strategies and Standards Division, Ozone Policy
and Strategies Group, MD-15, Research Triangle Park, NC 27711,
telephone (919) 541-5246/5238. In addition, the following Regional
contacts may be called for individual information regarding monitoring
data and policy matters specific for each Regional Office's geographic
area:

    Region I--Richard P. Burkhart, (617) 565-3578
    Region II--Ray Werner, (212) 637-3706
    Region III--Marcia Spink, (215) 566-2104
    Region IV--Kay Prince, (404) 562-9026
    Region V--Todd Nettesheim, (312) 353-9153
    Region VI--Lt. Mick Cote, (214) 665-7219
    Region VII--Royan Teter, (913) 551-7609
    Region VIII--Tim Russ, (303) 312-6479
    Region IX--Morris Goldberg, (415) 744-1296
    Region X--William Puckett, (206) 553-1702.

SUPPLEMENTARY INFORMATION:

Table of Contents

I. Public Comments and EPA Responses
II. Discovered Errors in 40 CFR Part 81 Ozone Table
III. Final Rulemaking Action
IV. Other Regulatory Requirements

I. Public Comments and EPA Responses

    The following discussion summarizes and responds to the comments
received on the direct final rule published on January 16, 1998 (63 FR
2726), which was withdrawn due to adverse comments by a document
published on March 16, 1998 (63 FR 12652), thus converting the direct
final rule to a proposal (63 FR 2804, January 16, 1998).
    General Comment: The commenter voiced four major concerns: (1) the
rule contradicts the requirements of the Clean Air Act (Act), (2) the
rule uses an arbitrary and inconsistent methodology to determine where
the 1-hour standard should be determined not to apply, (3) the rule
discriminates against downwind areas affected by transported ozone and
nitrogen oxides (NOX), and (4) the rule imposes uncertain
and unfair burdens on small entities and others in southwestern
Pennsylvania. The EPA should revoke the 1-hour standard everywhere, for
the entire country.
    Comment: The Act does not give EPA the authority to establish
different standards for different areas of the country, nor does it
give EPA the authority to selectively revoke previously established
standards in some areas of the country but not others.
    Response: The procedure for determining that the ozone national
ambient air quality standards (NAAQS) no longer applies was established
in the NAAQS rulemaking promulgated in July 1997. Since the rule for
the new ozone NAAQS has been promulgated, effective September 16, 1997,
(62 FR 38856, July 18, 1997), it is too late to raise issues in this
rulemaking concerning the continued applicability of the 1-hour ozone
standard to areas not attaining that standard.
    Comment: Although southwestern Pennsylvania attained the 1-hour
standard for 6 straight years from 1989 through 1994, EPA refused to
redesignate the region because of a dispute with the Commonwealth of
Pennsylvania over whether the other requirements for redesignation had
been met. When the Growth Alliance challenged EPA's illegal delay in
acting on Pennsylvania's request to redesignate the region and its
inappropriate consideration of 1995 emission data, EPA asserted that it
would refuse to redesignate the region regardless of the decision about
the appropriate air quality data to use because of the other
requirements for redesignation. By revoking the standard in areas that
may not have met the requirements for redesignation, EPA is now
attempting to circumvent the same requirements of the Act that it has
previously been so adamant to enforce in southwestern Pennsylvania.
    Response: On May 1, 1996, EPA disapproved the Commonwealth of
Pennsylvania's request that EPA redesignate the Pittsburgh
nonattainment area to attainment for ozone because the area violated
the 1-hour ozone NAAQS and did not meet other Act requirements for
redesignation (61 FR 19193). This decision was challenged. In an
opinion filed on July 28, 1997, the U.S. Court of Appeals for the Third
Circuit denied the Southwestern Pennsylvania Growth Alliance's petition
for review and upheld EPA's decisions to disapprove Pennsylvania's
redesignation request for the Pittsburgh area. Furthermore, the
Pittsburgh area was not in attainment for 6 straight years. Compliance
with the ozone NAAQS is determined using 3 consecutive years of data to
account for year-to-year variations in emissions and meteorological
conditions. The area first had air quality data that met the NAAQS in
1992, considering the years 1990-1992, and continued to meet the
standard in 1993 and 1994. Then, in 1995, the area once again violated
the NAAQS. The area continues to be out of compliance with the 1-hour
ozone NAAQS.
    As this action is not a redesignation, but rather a determination
that the 1-hour NAAQS no longer applies to certain areas, pursuant to
the regulations promulgated in July 1997 as part of the rulemaking
regarding the ozone NAAQS, the redesignation requirements of section
107(d)(3)(E) do not apply to this action. This action is

[[Page 31015]]

not an attempt to circumvent the requirements of redesignation, but
instead simply follows the regulations previously adopted by EPA.
    Comment: There is a pending suit which challenges EPA's ability to
redesignate upwind areas to attainment when their States have not
complied with the requirements of section 110(a)(2)(D) of the Act,
which requires that every State impose emission controls sufficient to
prevent negative impacts on downwind areas. By revoking the 1-hour
standard in areas that have attained it, but not requiring that the
other requirements for redesignation be met, EPA appears to be
attempting to escape a potentially adverse ruling.
    Response: The Agency views the process of determining where the 1-
hour standard no longer applies as not being subject to the
requirements for redesignation. The regulations adopted by EPA that
govern this process set forth only one criterion--attainment of the 1-
hour standard. Section 110(a)(2)(D) continues to apply to upwind States
regardless of the applicability of the 1-hour standard to areas in
those States. Therefore, a determination that the 1-hour standard does
not apply in an upwind State has no bearing on the obligation of such a
State to satisfy the requirements of section 110(a)(2)(D) as to any
significant contribution from sources in that State to a downwind area
that is not attaining the 1-hour NAAQS. This action is not an attempt
to avoid any potentially adverse court ruling but is simply the
carrying out of the regulations promulgated in July 1997.
    Comment: This method arbitrarily selects the 1994-1996 period of
time to determine where the 1-hour standard will be revoked; an area
that happens to experience meteorological conditions that were
favorable for ozone during 1996 or early 1997 would be doomed to remain
subject to the 1-hour standard, while an area that experienced the same
meteorological conditions a year later would not. This arbitrariness is
particularly unfair because a violation can occur at a particular time,
not because of an inappropriate level of emissions, but because of
variations in weather and temperature.
    Response: The 1994-1996 period was chosen because it was the most
recent 3-year period that existed at the time of this rule for which
EPA and the States had complete data. Attainment of the ozone NAAQS is
determined using 3 consecutive years of data to account for variations
in meteorological conditions, as well as variations in volatile organic
compounds (VOC) and NOX emissions. The Ozone NAAQS is
designed to take into account such variations. Since EPA cannot control
the weather, it must control levels of ozone in the breathable air by
controlling the concentration of NOX and VOC in the air.
EPA's goal is to ensure that everyone is breathing healthy air,
regardless of the weather. Later periods will be used in future
actions. For instance, on May 18, 1998, the Agency proposed that the 1-
hour standard would no longer apply in 6 additional ozone areas based
upon 1995-1997 air quality data (63 FR 27247).
    Comment: The EPA is removing the standard in some areas, not
because there are no violations of the ozone standard, but because
there are no ozone monitors to measure ozone. This discriminates
against areas that have more ozone monitors.
    Response: The Agency has in place procedures to review all past
monitoring and sources that contribute to violations, thus enabling the
Agency to locate monitors in areas that are likely to violate. The EPA
believes that the monitoring network in place for the 1-hour ozone
standard adequately represents the Nation's air quality. Using past air
quality monitoring and modeling data, EPA has located monitors in areas
where violations of the 1-hour standard are likely to occur and has not
located monitors in areas where the likelihood of violation is low. The
design of the ozone network can be found in 40 CFR part 58.
    Comment: The EPA is proposing to revoke the 1-hour standard in
upwind areas, while leaving it in place in downwind areas, despite the
fact that it has been proven to be impossible for downwind areas to
attain the 1-hour standard without additional emission controls in
upwind areas. The EPA has failed to enforce section 110(a)(2)(D) which
requires that every State impose emission controls sufficient to
prevent negative impacts on downwind areas.
    Response: The EPA is addressing this issue in the Eastern United
States through the NOX State implementation call (SIP) call,
which EPA has proposed (62 FR 60318, November 7, 1997). The proposal
would place uniform controls for NOX emissions in large
geographic upwind areas that contain both attainment and nonattainment
areas. The controls would reduce NOX emissions and, as a
result, ozone levels. The EPA has also been petitioned, under section
126(b) of the Act, to place controls on upwind stationary sources of
NOX emissions. More generally, it should be noted that
upwind sources are subject to section 110(a)(2)(D) regardless of
whether the 1-hour standard continues to apply to them. Accordingly, a
determination that the 1-hour standard does not apply to upwind areas
does not preclude additional reductions in the upwind areas.
    Comment: The NOX SIP call will not be in effect until,
at the earliest, 2002; southwestern Pennsylvania will continue to
suffer from the effects of transported pollution for at least 5
additional years. As a result, under the methodology that EPA has
proposed, it is unlikely that the 1-hour standard could be revoked for
southwestern Pennsylvania or other areas of the country that are
affected by transport until well into the 21st century.
    Response: The Agency acknowledges that some areas will remain in
nonattainment and subject to the 1-hour standard. Under the Act, areas
are designated nonattainment as long as their air quality fails to meet
the NAAQS, even if they are the victims of transport from upwind areas
that may be designated attainment. The EPA is continuing this approach
even when the 1-hour standard ceases to apply for areas that are
attaining, but EPA is not thereby creating any inequities.
    Comment: Photochemical modeling conducted for southwestern
Pennsylvania and approved by EPA demonstrated that even if all manmade
emissions in southwestern Pennsylvania were eliminated the Pittsburgh
area would still experience exceedances of the 1-hour standard.
    Response: The EPA has completed a preliminary review of the
submitted modeling but has not issued any formal approval or
disapproval. The modeling for Pittsburgh suggests that the area's air
quality is affected by transport, but that manmade emissions from the
Pittsburgh area also contribute to the area's nonattainment problem.
    Comment: The continuation of the standard in southwestern
Pennsylvania means that this region will be bumped up to a serious
nonattainment designation and be subject to additional controls during
1998.
    Response: According to section 181(b)(2), if a nonattainment area
fails to meet it attainment date, then the nonattainment area is
subject to bump-up to the next higher classification. The Agency is
considering administrative mechanisms to soften the regulatory burden
that may be imposed on areas affected by overwhelming transport.
    Comment: It is impossible to determine exactly how the rule will
affect any area or entity because EPA has not stated what the
implications of the rule will be. In other words, even EPA does not yet
know what the implications of its rule are, so it is impossible for it
to certify that the rule

[[Page 31016]]

will not have a significant impact on a substantial number of small
entities.
    Response: The Regulatory Flexibility Act (RFA), 5 U.S.C. 601(a),
provides that whenever an agency is required to publish a general
notice of rulemaking, it must prepare and make available a RFA. An RFA
is required only for small entities that are directly regulated by the
rule (see Mid-Tex Electric Cooperative, Inc. v. FERC, 773 F.2d 327
(D.C. Cir. 1985)). Determining that the 1-hour standard ceases to apply
does not subject any entities to additional requirements. Accordingly,
the Administrator is justified in certifying that the rule will not
have a significant economic impact on a substantial number of small
entities.
    Comment: This new regulation will arbitrarily and inappropriately
harm southwestern Pennsylvania by imposing a stricter ozone standard in
our region than in any other community within 200 miles and by forcing
southwestern Pennsylvania businesses to unnecessarily suffer higher
regulatory costs than businesses in areas to our south and west. The
rule will have potentially serious negative impacts on both air quality
and economic development in our region.
    Response: The Agency acknowledges that some areas will remain in
nonattainment and subject to the 1-hour standard regardless of the
determination that the 1-hour standard ceases to apply elsewhere. Under
the Act, areas are designated nonattainment as long as their air
quality fails to meet the NAAQS. The goal of the Act, and the goal of
EPA in implementing it, is to ensure that everyone is breathing healthy
air. The Agency is examining administrative ways of reducing the
regulatory burden that may be imposed on areas affected by overwhelming
transport. It should also be noted that southwestern Pennsylvania would
remain subject to controls under section 184 as part of the Ozone
Transport Region (OTR) even if the 1-hour standard ceased to apply for
the area.
    Comment: The commenter believes that the 1994-1996 data set used
for purposes of revoking the 1-hour NAAQS is appropriate because the
revisions to the NAAQS occurred in July 1997, and all moderate and
lower classified areas should have recorded no violations for the 1994-
1996 timeframe. Thus, the commenter urges EPA not to revoke the 1-hour
NAAQS based on a data set that includes 1997.
    Response: The EPA intends to determine that the 1-hour standard
ceases to apply for areas that attain the 1-hour NAAQS on an annual
basis in an effort to transition from the 1-hour standard to the new 8-
hour standard. Consequently, on May 18, 1998, EPA published a proposal
to determine that the 1-hour NAAQS no longer applies to a number of
areas based on complete, quality-assured air monitoring data for the
timeframe 1995-1997 (63 FR 27247). Subsequently, such determinations
will be based on the most recent 3 years of complete, quality-assured
monitoring data, i.e., 1999 determinations will be based on 1996-1998
monitoring data, etc. The commenters' rationale for limiting
determinations to 1994-1996 monitoring data is unclear given the
purpose of this and similar subsequent actions in transitioning to the
new 8-hour ozone standard.
    Comment: The EPA has failed to consider data collected from earlier
periods which is ``most recent'' for some areas. During 1991, data
which were collected as part of the Lake Michigan Ozone Study support
maintaining applicability of the 1-hour standard for several counties
in Michigan, namely Benzie, Delta and Oceana. The commenter provides
1991 data from these three counties: Benzie County--3 exceedances in
1991; Delta County--2 exceedances in 1991; and Oceana County--4
exceedances in 1991.
    Response: The EPA is making these determinations based on areas
having air quality meeting the 1-hour standard. The 1994-96 average
expected exceedance in Benzie County was 0.3 with 3 years of complete
data. Therefore, Benzie County is clearly measuring attainment and for
this reason, EPA is determining that the 1-hour standard no longer
applies.
    Delta County had 2 exceedances in 1991 and no data at that monitor
since. Since the monitor recorded less than 3.2 total number of
estimated exceedances over a 3 year period, there is no violation.
Furthermore, another monitor in the county had 2 years of data in 1992
and 1993 with no exceedances. Therefore, the 1-hour standard no longer
applies to Delta County.
    Oceana County had 4 exceedances of the 1-hour ozone standard in
1991 and has collected no data since. This was a clear violation of the
1-hour standard. In addition, the two monitors immediately to the south
and north of Oceana County--Muskegon County and Mason County,
respectively, currently monitor violations of the 1-hour standard. For
these reasons, EPA believes that there is a strong likelihood that the
air quality in Oceana County continues to violate the one-hour
standard. Thus, the 1-hour standard will still apply in Oceana County.
    Comment: The commenter states that air quality data alone are
insufficient to determine attainment since Congress mandated
redesignation requirements in section 107(d)(3)(E) of the Act. It is
imperative that areas designated nonattainment meet these requirements
before revocation of the 1-hour NAAQS, including an attainment
demonstration with fully implemented rules and section 110(k)(5) issues
addressed.
    Response: The criteria used to redesignate areas from nonattainment
to attainment mandated by Congress are in section 107(d)(3)(E) of the
Act. The first criteria is to demonstrate attainment of the NAAQS. For
ozone, ambient air quality data have been used exclusively to
demonstrate actual attainment of the ozone standard to meet the first
criteria for redesignation. The other redesignation requirements of
section 107(d)(3)(E) are to ensure that the measures that contributed
to attainment of the NAAQS remain in place, that a level of emissions
is established that would ensure continued maintenance of the NAAQS,
and that a contingency plan is in place in the event the NAAQS is
violated in the future. A determination that the 1-hour standard no
longer applies is intended, in part, to be a process to transition to
the newly promulgated 8-hour ozone standard for which EPA will
designate areas in 2000. Thus, requiring areas to satisfy the other
redesignation requirements in light of a new standard is not practical
since their purpose is to continue maintenance of the 1-hour standard.
    Comment: Any areas covered by EPA's NOX SIP call need to
take action to mitigate interstate transport of ozone. Consequently,
the commenter urges EPA to withdraw dropping the 1-hour NAAQS in these
States. Furthermore, EPA should withdraw dropping the 1-hour NAAQS in
States that have been shown to contribute to ozone transport such as
Texas, Louisiana, and Arkansas.
    Response: The EPA believes it is not a question as to whether or
not the 1-hour standard applies, but that areas significantly
contributing to transport must take action to mitigate such effects.
The EPA proposed to apply the NOX SIP call (62 FR 60318,
November 7, 1997) to the appropriate States regardless of designations
with respect to the 1-hour standard within these States. The SIP call
is based on one of the general provisions of the Act, section
110(a)(2)(D)(I), which requires that a SIP be designed so that
emissions from a State do not contribute significantly to nonattainment
or interfere with maintenance of any primary or secondary NAAQS.
Therefore, whether or not to continue the 1-hour standard in these
States will have no effect on the impact of the NOX SIP
call. Determining

[[Page 31017]]

that the 1-hour NAAQS does not apply for a State subject to the
proposed NOX SIP call has no effect on that State's
responsibility to respond to the SIP call. The November 7, 1997,
proposal indicates that the NOX reductions will reduce ozone
transport and, consequently, contribute toward attainment of the 1- and
8-hour standards. It should also be noted that in the proposed
NOX SIP call, EPA proposed to determine that Louisiana,
Arkansas and Texas do not contribute significantly to nonattainment or
maintenance problems downwind.
    Comment: The commenter objects to the EPA's proposal to revoke the
1-hour NAAQS in portions of the Consolidated Metropolitan Statistical
Areas (CMSAs) of Evansville-Henderson, Indiana-Kentucky, Grand Rapids-
Muskegon-Holland, Michigan, and Longview, Texas. Since EPA has
determined that the 1-hour NAAQS remains applicable in other portions
of these CMSAs (Warrick, Indiana; Muskegon, Michigan; and Gregg,
Texas), the NAAQS should remain applicable to the entire CMSA. The
CMSAs are identified as follows: Posey, Warrick, Henderson and
Vanderburgh Counties in the Evansville-Henderson, Indiana-Kentucky
CMSA; Ottawa, Muskegon, Kent and Allegan Counties in the Grand Rapids-
Muskegon-Holland, Michigan CMSA; and Gregg, Harrison and Upshur County
in the Longview, Texas CMSA.
    Response: The geographic boundaries of the area for which the 1-
hour standard no longer applies is based upon the established
nonattainment/attainment area boundaries. Default CMSA boundaries are
not mandatory for moderate and lower-classified areas for SIP planning
purposes, but instead are discretionary and based upon many factors.
With respect to the Evansville-Henderson, Indiana-Kentucky area, at the
time of the 1991 designations, the EPA agreed with the State of Indiana
to limit the nonattainment area to Vanderburgh County due to the lack
of valid ambient monitoring data showing violations of the 1-hour
standard.
    The EPA is not determining that the 1-hour standard no longer
applies for the Grand Rapids-Muskegon-Holland area in today's action.
Furthermore, when the current designations were promulgated in 1991,
the EPA based them on the most recent MSA-CMSA information available
from the Census Bureau at that time. As a result, the Grand Rapids
area, Muskegon area and Allegan County (Holland) were designated as
separate areas. More recent census information merges these three areas
into one. However, EPA believes that it is neither appropriate nor
necessary to change its treatment of these areas at this time.
Nonattainment area boundaries may be redefined with designations based
on the new 8-hour ozone NAAQS. Therefore, when Grand Rapids (Kent and
Ottawa Counties), Muskegon County or Allegan County have air quality
meeting the 1-hour ozone NAAQS, then they will qualify separately for a
determination that the 1-hour standard no longer applies.
    The Tyler/Longview area presents a unique situation to the Agency.
Although the Gregg County ozone monitor recorded a violation of the
ozone standard in 1995, EPA did not take action to designate the area
nonattainment. Instead, a Flexible Attainment Region Memorandum of
Agreement (MOA) was developed for five counties in the Tyler/Longview
area. This MOA requires that additional ozone control strategies be put
in place to reduce ambient ozone levels. The only ozone monitor present
in this region operates in Gregg County. Since the Tyler/Longview CMSA
is considered to be in attainment with respect to the 1-hour ozone
standard, the 1-hour ozone standard will only apply to the county with
the monitored violation. However, even though Upshur, Harrison, Smith
and Rusk Counties are no longer required to meet the 1-hour standard
under this approach, these counties must continue to meet the ozone
control strategy outlined in the MOA.
    Comment: The commenter is troubled by EPA's labeling of areas as
attainment for the 1-hour standard where the 1-hour standard is still
applicable. Instead, areas such as Grand Rapids-Muskegon-Holland and
Detroit-Ann Arbor should be bumped-up to serious. LaPorte, Indiana
should be included in the Chicago-Gary nonattainment area and
designated severe-17.
    Response: Again, the purpose of today's notice is not to designate,
reclassify or bump-up areas for the 1-hour standard but to transition
into the new 8-hour NAAQS by determining the nonapplicability of the 1-
hour NAAQS in areas that have air quality meeting the 1-hour standard
in recent years. The Detroit-Ann Arbor area (Livingston, Macomb,
Monroe, Oakland, St. Clair, Washtenaw, and Wayne Counties) and the
Grand Rapids area (Kent and Ottawa Counties) satisfied the section
107(d)(3)(E) requirements and were redesignated to attainment by
notices dated March 7, 1995 and June 21, 1996, respectively. One of the
redesignation requirements is that the area demonstrate attainment of
the 1-hour standard. Furthermore, as previously discussed, the Grand
Rapids area consists of Kent and Ottawa Counties and does not include
Muskegon and Allegan Counties. Moreover based on 1995-1997 data showing
attainment of the 1-hour standard, EPA has proposed a determination
that the 1-hour standard should no longer apply to the Grand Rapids and
Detroit areas (63 FR 27247, May 18, 1998). Finally, LaPorte, Indiana,
was not designated with the original 1991 designations since it did not
have data showing a violation of the 1-hour standard and the area was
and is not part of the Chicago CMSA.
    Comment: The commenters requested that eastern Kern County be
included in the list of areas attaining the 1-hour ozone standard and
to which the 1-hour standard is no longer applicable. They contend
that, in 1991, EPA erroneously included eastern Kern County in the San
Joaquin Valley serious nonattainment area when it should have been
excluded as a rural portion of the Metropolitan Statistical Area (MSA);
that eastern Kern County is now under the jurisdiction of the Kern
County Air Pollution Control District while western Kern County and the
rest of the San Joaquin Valley nonattainment area is under the
jurisdiction of the San Joaquin Valley Unified Air Pollution Control
District; and that ambient air quality monitoring data show that
eastern Kern County meets the 1-hour ozone standard.
    Response: This comment involves two issues: a change to the
nonattainment area boundary originally established in 1991, and a
finding that eastern Kern County is not violating the 1-hour ozone
standard. Both issues are outside the scope of this rulemaking.
    Furthermore, with respect to the question of whether or not eastern
Kern County is violating the 1-hour ozone standard, there are
monitoring data indicating that eastern Kern County is in fact
violating the 1-hour ozone standard. In EPA's review of Aerometric
Information Retrieval System data, we found that two exceedances of the
1-hour standard were registered at the Tehachapi monitoring station
which operated only during 1995. These exceedances indicate that
eastern Kern County is in violation of the 1-hour standard. The
California Air Resources Board, in a March 9, 1998 letter to the
Department of the Navy, confirmed that these ``exceedances indicate
that [eastern Kern County] has not demonstrated compliance with the
one-hour ozone standard.''
    Comment: The commenters urged EPA to revise its proposal so that
the 1-hour standard either is retained for the entire Nation or revoked
in all designated attainment and maintenance

[[Page 31018]]

areas. They believe that EPA's proposal leads to unfair treatment of
the San Francisco Bay Area, a maintenance area that is currently
proposed for redesignation to nonattainment of the 1-hour ozone
standard. They contend that the EPA incorrectly interpreted the
President's ``Implementation Plan for Revised Air Quality Standards''
(Plan) with regard to identification of areas to which the 1-hour ozone
standard will cease to apply. They believe that the President directed
EPA to revoke the one-hour standard for all existing maintenance areas
and nonattainment areas that have attained the standard, emphasizing
that the revocation should apply, regardless of current air quality, if
at some point in the past EPA determined the area to be attaining and
redesignated the area to attainment. They interpret the Plan's
requirement that areas be ``not violating'' or ``meeting'' the standard
(in the present tense) as referring only to designated nonattainment
areas.
    Response: The EPA is following the clear language of 40 CFR
50.9(b), which provides that the 1-hour standard no longer applies
``once EPA determines that the area has air quality meeting the 1-hour
standard.'' This language clearly states that an area is to have air
quality meeting the standard at the time of the determination. Second,
EPA disagrees that the memorandum called for EPA to determine the
nonapplicability of the 1-hour ozone standard for all areas currently
designated as maintenance or attainment areas. The Memorandum clearly
indicates that current air quality should be the basis of EPA's
determination in all areas, not just designated nonattainment areas.
The introductory paragraph of the section in the Memorandum labeled
``Phase-out of 1-hour standard'' states that ``the 1-hour standard will
continue to apply to areas not attaining it'' (62 FR 38424). The use of
the term ``attaining'' refers to an area's air quality relative to the
standard and not to an area's current designation under the Act section
107. This is clarified later when the Memorandum states that ``for
areas where the air quality does not currently attain the 1-hour
standard, the 1-hour standard will continue in effect'' (62 FR 38424).
The EPA's action to determine the nonapplicability of the 1-hour
standard only in areas whose air quality shows that they are not
currently violating the standard is consistent with the Memorandum and
follows the language of 40 CFR 50.9(b), which EPA must do. Because the
San Francisco Bay Area monitoring data show that the area is currently
violating the 1-hour ozone standard, it is not eligible to be included
in the list of areas to which the 1-hour standard no longer applies.
    Comment: Retention of the 1-hour standard in maintenance and
attainment areas will not promote early attainment of the new 8-hour
standard.
    Response: The Agency is retaining the 1-hour NAAQS for the San
Francisco Bay Area, not because it may facilitate attainment of the 8-
hour NAAQS, but because the area is currently violating the 1-hour
NAAQS. The Agency believes that progress toward meeting the 1-hour
NAAQS will contribute to attainment of the 8-hour NAAQS prior to the
due date of the SIP for the 8-hour NAAQS. The decision to retain the 1-
hour standard was explained when the Agency promulgated the ozone NAAQS
on July 18, 1997 and issued guidance for implementing the 1-hour ozone
and pre-existing particulate matter (PM-10) NAAQS on December 29, 1997.
    Comment: A number of commenters, contend that EPA does not have the
legal authority to determine that the 1-hour ozone NAAQS no longer
applies to an area without satisfying the requirements of section
107(d)(3)(E) for redesignation to attainment, including the requirement
of an approved maintenance plan under section 175A. The commenters
further contend that even if EPA had the legal authority to remove the
nonattainment designation of areas as it has proposed, its action would
be unlawful since it is arbitrary and capricious, an abuse of
discretion and is procedurally flawed.
    Response: The EPA's authority for this action is based on the
regulatory provisions adopted when it promulgated the 8-hour ozone
NAAQS in July 1997 (62 FR 38856 (July 18, 1997)). Those regulations, in
40 CFR 50.9(b), provide that the ``1-hour standard set forth in this
section will no longer apply to an area once EPA determines that the
area has air quality meeting the 1-hour standard.'' Those regulations
specify a single criterion for the revocation of the standard--the
determination by EPA that an area has air quality meeting the 1-hour
standard. The EPA believes that is the only criterion that may be
applied in this rulemaking, and that it has been satisfied in the case
of all the areas covered by this action. This view is made clear by the
memorandum from President Clinton to the Administrator outlining a
strategy for implementing the revised PM and ozone NAAQS that was
published on the same day as the revised NAAQS (62 FR 38421 (July 18,
1997)). That memorandum stated that ``to streamline the process and
minimize the burden on existing nonattainment areas, the 1-hour
standard will cease to apply to an area upon a determination by the EPA
that an area has attained air quality that meets the 1-hour standard.
In light of the implementation of the new 8-hour standard, which is
more stringent than the existing 1-hour standard, States will not have
to prepare maintenance plans for those areas that attain the 1-hour
standard'' (62 FR 38424 (July 18, 1997)). Thus, it was abundantly clear
when EPA promulgated the regulation, on which today's action is based,
that it would not be requiring maintenance plans as a prerequisite to
its determination that the 1-hour standard no longer applies. In
essence, the commenters' complaint, properly viewed, is not with the
action being taken at this time, but with the regulatory provision on
which this action is based. That regulation was promulgated in July
1997, however, and the commenters' attempt to raise these issues at
this point is simply too late. Moreover, EPA is not bound to follow the
provisions of section 107(d)(3)(E) when a NAAQS has been revised and
the NAAQS on which a nonattainment designation was based has been
replaced by a new NAAQS, whose implementation will supersede the
implementation of the old NAAQS. As for the fact that certain areas
will still be subject to conformity, while others will not, that is
simply a consequence of the conformity provisions of the statute, which
make it applicable only to areas that are designated nonattainment or
that have maintenance plans approved under section 175A. Such a result
is not arbitrary or capricious nor an abuse of discretion. Any areas
that do violate the new ozone NAAQS will be designated nonattainment
for that NAAQS and subjected to conformity requirements at that time.
    Similarly, the commenters' contention that this action is
procedurally flawed because it does not conform to a proposed policy
published in the Federal Register in December 1996 is erroneous. The
rule finalized in this action is being taken pursuant to 40 CFR
50.9(b), which was promulgated after the proposed policy referred to by
the commenters was published. That proposed policy was not the proposal
on which this final action is based, and the reason it is not being
followed here was evident in the proposal that did underlie this
action--the existence of 40 CFR 50.9(b).
    Comment: The commenters questioned the Agency's authority and the
basis for retaining the 1-hour standard. They oppose the imposition of
two ozone standards.

[[Page 31019]]

    Response: These issues were dealt with in the final promulgation of
the ozone NAAQS (62 FR 38856) on July 18, 1997. Specifically, EPA
discussed its basis for retaining the one-hour standard at (62 FR
38885). Consequently, the commenters' attempt to raise these issues in
this rulemaking, which simply carries out the provisions of 40 CFR
50.9(b), is too late.
    Comment: The commenters question whether the Act provides EPA the
authority to reclassify areas from ``nonattainment'' to ``not
applicable'' when section 107(d)(1) of the Act only provides for
designations of ``nonattainment,'' ``attainment,'' and
``unclassifiable.''
    Response: The Agency is not altering designations, per se, rather
the Agency is determining the nonapplicability of the 1-hour standard
in areas attaining the 1-hour NAAQS and is applying the term ``Not
Applicable'' to so indicate.

II. Discovered Errors in 40 CFR Part 81 Ozone Table

Alabama

    The EPA recognized that the county of ``Cherokee'' was
inadvertently omitted from the January 16, 1998 document. Therefore,
part 81 for ozone has been amended to reflect this correction.

Alaska

    The EPA recognized that the Boroughs of ``Denali'' and ``Lake and
Peninsula'' were inadvertently omitted from the January 16, 1998
document, under AQCR 9 and AQCR 10, respectively. Therefore, part 81
for ozone has been amended to reflect these corrections.

California

    The EPA recognized that the county of ``Santa Clara'' was
incorrectly spelled as ``San Clara'' in the January 16, 1998 document.
In addition, the description for Sonoma County (part) was inadvertedly
omitted and has been added. Therefore, part 81 for ozone has been
amended to reflect these corrections.

Mississippi

    The EPA recognized that the county of ``De Soto'' was incorrectly
spelled as ``DeSota'' in the January 16, 1998 document. Therefore, part
81 for ozone has been amended to reflect this correction.

Puerto Rico

    The EPA recognized that four municipios in Puerto Rico listed in
the January 16, 1998 document were incorrectly spelled. Specifically,
``Caba Rojo Municipio'' should be corrected to read ``Cabo Rojo
Municipio''; ``Coama Municipio'' should be corrected to read ``Coamo
Municipio''; ``Comeria Municipio'' should be corrected to read
``Comerio Municipio''; ``Trujilla Alto Municipio'' should be corrected
to read ``Trujillo Alto Municipio.'' Therefore, part 81 for ozone has
been amended to reflect these corrections.

South Carolina

    The EPA recognized that two of the South Carolina counties listed
in the January 16, 1998 document were incorrectly spelled.
Specifically, ``Manon County'' should be corrected to read ``Marion
County'' and that ``Saloda County'' be corrected to read ``Saluda
County.'' Therefore, part 81 for ozone has been amended to reflect
these corrections.

III. Final Rulemaking Action

    The ozone tables codified in today's action are significantly
different from the ozone tables now included in 40 CFR part 81. The
current 40 CFR part 81 designation listings (revised as of November 6,
1991) include, by State and NAAQS pollutant, a brief description of
areas within the State and their respective designation. Today's action
includes completely new tables for ozone which indicate areas where the
1-hour standard no longer applies, as well as where the 1-hour standard
remains in effect. Also, the ozone tables codified today include the
corrections from the proposed rulemaking noted above in section II.
Discovered Errors in 40 CFR part 81 Ozone Table.

IV. Other Regulatory Requirements

A. Executive Order 12866

    The Office of Management and Budget has exempted this regulatory
action from Executive Order 12866 review.

B. Rule Effective Date

    The EPA finds that there is good cause for this action to become
effective immediately upon publication because a delayed effective date
is unnecessary due to the nature of this action, which is a
determination that the 1-hour ozone standard no longer applies. The
immediate effective date for this action is authorized under both 5
U.S.C. 553 (d)(1), which provides that rulemaking actions may become
effective less than 30 days after publication if the rule ``grants or
recognizes an exemption or relieves a restriction'' and section
553(d)(3), which allows an effective date less than 30 days after
publication ``as otherwise provided by the agency for good cause found
and published with the rule.''

C. Regulatory Flexibility Act

    Under the Regulatory Flexibility Act, 5 U.S.C. 601 et seq., EPA
must prepare a regulatory flexibility analysis assessing the impact of
any proposed or final rule on small entities (5 U.S.C. 603 and 604),
unless EPA certifies that the rule will not have a significant impact
on a substantial number of small entities. Small entities include small
businesses, small not-for-profit enterprises, and government entities
with jurisdiction over populations of less than 50,000. The EPA is
certifying that this rule will not have a significant impact on a
substantial number of small entities, because the determination that
the 1-hour standard ceases to apply does not subject any entities to
any additional requirements.

D. Unfunded Mandates

    Under section 202 of the Unfunded Mandates Reform Act of 1995
(UMRA), EPA must prepare a budgetary impact statement to accompany any
proposed or final rule that includes a Federal mandate that may result
in estimated costs to State, local, or tribal governments in the
aggregate; or to private sector, of $100 million or more. Under section
205, EPA must select the most cost effective and least burdensome
alternative that achieves the objectives of the rule and is consistent
with statutory requirements. Section 203 requires EPA to establish a
plan for informing and advising any small governments that may be
significantly or uniquely impacted by the rule.
    The EPA has determined that today's approval action, as
promulgated, would not include a Federal mandate that may result in
estimated costs of $100 million or more to either State, local, or
tribal governments in the aggregate or to the private sector. This
Federal action imposes no new requirements. Accordingly, no additional
costs to State, local, or tribal governments, or to the private sector,
result from this action.

E. Submission to Congress and the General Accounting Office

    Under 5 U.S.C. 801(a)(1)(A), as added by the Small Business
Regulatory enforcement Fairness Act of 1996, EPA submitted a report
containing this rule and other required information to the U.S. Senate,
the U.S. House of Representatives and the Comptroller General of the
General Accounting Office prior to publication of the rule in today's
Federal Register. This rule is not a ``major rule'' as defined by 5
U.S.C. 804(2).

[[Page 31020]]

F. Petitions for Judicial Review

    Under section 307(b)(1) of the CAA, petitions for judicial review
of this action must be filed in the United States Court of Appeals for
the appropriate circuit by August 4, 1998. Filing a petition for
reconsideration by the Administrator of this final rule does not affect
the finality of this rule for the purposes of judicial review nor does
it extend the time within which a petition for judicial review may be
filed, and shall not postpone the effectiveness of such rule or action.
This action may not be challenged later in preceedings to enforce its
requirements (see section 307(b)(2)).

G. Applicability of Executive Order (E.O.) 13045

    On April 21, 1997, the President signed an Executive Order (13045)
entitled ``Protection of Children from Environmental Health Risks and
Safety Risks.'' This is the primary directive to Federal agencies and
departments that Federal health and safety standards now must include
an evaluation of the health or safety effects of the planned regulation
on children. For rules subject to the Executive Order, agencies are
further required to issue an explanation as to why the planned
regulation is preferable to other potentially effective and reasonable
feasible alternatives considered by the Agency.
    This final rule is not subject to E.O. 13045, entitled ``Protection
of Children from Environmental Health Risks and Safety Risks'' (62 FR
19885, April 23, 1997), because this is not an economically significant
regulatory action as defined by E.O. 12866, and it does not involve
decisions on environmental health risks or safety risks that may
disproportionately affect children.

List of Subjects in 40 CFR Part 81

    Environmental protection, Air pollution control, National parks,
Wilderness areas.

    Dated: May 27, 1998.
Carol M. Browner,
Administrator.

    For the reasons set out in the preamble, title 40, chapter I of the
Code of Federal Regulations is amended as follows:


PART 81--[AMENDED]

    1. The authority citation for part 81 continues to read as follows:

    Authority: 42 U.S.C. 7401, et seq.

    2. In Sec. 81.301, the table entitled ``Alabama-Ozone'' is revised
to read as follows:


Sec. 81.301  Alabama.

* * * * *

                                                             Alabama-Ozone (1-hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date\1\                       Type                      Date\1\                       ype
--------------------------------------------------------------------------------------------------------------------------------------------------------
Birmingham Area:
    Jefferson County....................     11/15/90  Nonattainment............................     11/15/90  Marginal.
    Shelby County.......................     11/15/90  Nonattainment............................     11/15/90  Marginal.
Rest of State...........................  ...........  1 hr.std.N.A.\2\.........................
    Autauga County
    Baldwin County
    Barbour County
    Bibb County
    Blount County
    Bullock County
    Butler County
    Calhoun County
    Chambers County
    Cherokee County
    Chilton County
    Choctaw County
    Clarke County
    Clay County
    Cleburne County
    Coffee County
    Colbert County
    Conecuh County
    Coosa County
    Covington County
    Crenshaw County
    Cullman County
    Dale County
    Dallas County
    De Kalb County
    Elmore County
    Escambia County
    Etowah County
    Fayette County
    Franklin County
    Geneva County
    Greene County

[[Page 31021]]


    Hale County
    Henry County
    Houston County
    Jackson County
    Lamar County
    Lauderdale County
    Lawrence County
    Lee County
    Limestone County
    Lowndes County
    Macon County
    Madison County
    Marengo County
    Marion County
    Marshall County
    Mobile County
    Monroe County
    Montgomery County
    Morgan County
    Perry County
    Pickens County
    Pike County
    Randolph County
    Russell County
    St. Clair County
    Sumter County
    Talladega County
    Tallapoosa County
    Tuscaloosa County
    Walker County
    Washington County
    Wilcox County
    Winston County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    3. In Sec. 81.302, the table entitled ``Alaska-Ozone'' is revised
to read as follows:


Sec. 81.302  Alaska.

* * * * *

                                                             Alaska--Ozone (1-hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
AQCR 08 Cook Inlet Intrastate...........  ...........  1 hr.std.N.A.\2\                                        .........................................
    Anchorage Election District           ...........  .........................................               .........................................
    Kenai Penninsula Election District    ...........  .........................................               .........................................
    Matanuska-Susitna Election District   ...........  .........................................               .........................................
    Seward Election District              ...........  .........................................               .........................................
AQCR 09 Northern Alaska Intrastate......  ...........  1 hr.std.N.A.\2\.........................               .........................................
    Barrow Election District              ...........  .........................................               .........................................
    Denali Borough                        ...........  .........................................               .........................................
    Fairbanks Election District           ...........  .........................................               .........................................
    Kobuk Election District               ...........  .........................................               .........................................
    Nome Election District                ...........  .........................................               .........................................
    North Slope Election District         ...........  .........................................               .........................................
    Northwest Arctic Borough              ...........  .........................................               .........................................
    Southeast Fairbanks Election          ...........  .........................................               .........................................
     District
    Upper Yukon Election District         ...........  .........................................               .........................................
    Yukon-Koyukuk Election District       ...........  .........................................               .........................................
AQCR 10 South Central Alaska Intrastate.  ...........  1 hr.std.N.A.\2\.........................               .........................................
    Aleutian Islands Election District    ...........  .........................................               .........................................
    Aleutians East Borough                ...........  .........................................               .........................................
    Aleutians West Census                 ...........  .........................................               .........................................
    Bethel Election District              ...........  .........................................               .........................................
    Bristol Bay Borough Election          ...........  .........................................               .........................................
     District

[[Page 31022]]


    Bristol Bay Election District         ...........  .........................................               .........................................
    Cordova-McCarthy Election District    ...........  .........................................               .........................................
    Dillingham Election District          ...........  .........................................               .........................................
    Kodiak Island Election District       ...........  .........................................               .........................................
    Kuskokwim Election District           ...........  .........................................               .........................................
    Lake and Peninsula Borough            ...........  .........................................               .........................................
    Valdez-Cordova Election District      ...........  .........................................               .........................................
    Wade Hampton Election District        ...........  .........................................               .........................................
AQCR 11 Southeastern Alaska Intrastate..  ...........  1 hr.std.N.A.\2\.........................               .........................................
    Angoon Election District              ...........  .........................................               .........................................
    Haines Election District              ...........  .........................................               .........................................
    Juneau Election District              ...........  .........................................               .........................................
    Ketchikan Election District           ...........  .........................................               .........................................
    Outer Kethcikan Election District     ...........  .........................................               .........................................
    Prince Of Wales Election District     ...........  .........................................               .........................................
    Sitka Election District               ...........  .........................................               .........................................
    Skagway-Yakutat Election District     ...........  .........................................               .........................................
    Wrangell-Petersburg Election          ...........  .........................................               .........................................
     District
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    4. In Section 81.303, the table entitled ``Arizona-Ozone'' is
revised to read as follows:


Sec. 81.303  Arizona.

* * * * *

                                                             Arizona-Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                             Date <SUP>1                       Type                       Date <SUP>1                       Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Phoenix Area:
    Maricopa County (part)..............     11/15/90  Nonattainment............................     12/08/97  Serious.
    The Urban Planning Area of the                                                                             .........................................
     Maricopa Association of Governments
     is bounded as follows:
        1. Commencing at a point which                                                                         .........................................
         is at the intersection of the
         eastern line of Range 7 East,
         Gila and Salt River Baseline
         and Meridian, and the southern
         line of Township 2 South, said
         point is the southeastern
         corner of the Maricopa
         Association of Governments
         Urban Planning Area, which is
         the point of beginning;
        2. thence, proceed northerly                                                                           .........................................
         along the eastern line of Range
         7 East, which is the common
         boundary between Maricopa and
         Pinal Counties, as described in
         Arizona Revised Statute Section
         11-109, to a point where the
         eastern line of Range 7 East
         intersects the northern line of
         Township 1 North, said point is
         also the intersection of the
         Maricopa County Line and the
         Tonto National Forest Boundary,
         as established by Executive
         Order 869 dated July 1, 1908,
         as amended and shown on the
         U.S. Forest Service 1969
         Planimetric Maps;
        3. thence, westerly along the                                                                          .........................................
         northern line of Township 1
         North to approximately the
         southwest corner of the
         southeast quarter of Section
         35, Township 2 North, Range 7
         East, said point being the
         boundary of the Tonto National
         Forest and Usery Mountain Semi-
         Regional Park;
        4. thence, northerly along the                                                                         .........................................
         Tonto National Forest Boundary,
         which is generally the western
         line of the east half of
         Sections 26 and 35 of Township
         2 North, Range 7 East, to a
         point which is where the
         quarter section line intersects
         with the northern line of
         Section 26, Township 2 North,
         Range 7 East, said point also
         being the northeast corner of
         the Usery Mountain Semi-
         Regional Park;

[[Page 31023]]


        5. thence, westerly along the                                                                          .........................................
         Tonto National Forest Boundary,
         which is generally the south
         line of Sections 19, 20, 21 and
         22 and the southern line of the
         west half of Section 23,
         Township 2 North, Range 7 East,
         to a point which is the
         southwest corner of Section 19,
         Township 2 North, Range 7 East;
        6. thence, northerly along the
         Tonto National Forest Boundary
         to a point where the Tonto
         National Forest Boundary
         intersects with the eastern
         boundary of the Salt River
         Indian Reservation, generally
         described as the center line of
         the Salt River Channel;
        7. thence, northeasterly and                                                                           .........................................
         northerly along the common
         boundary of the Tonto National
         Forest and the Salt River
         Indian Reservation to a point
         which is the northeast corner
         of the Salt River Indian
         Reservation, and the southeast
         corner of the Fort McDowell
         Indian Reservation, as shown on
         the plat dated July 22, 1902,
         and recorded with the U.S.
         Government on June 15, 1902;
        8. thence, northeasterly along                                                                         .........................................
         the common boundary between the
         Tonto National Forest and the
         Fort McDowell Indian
         Reservation to a point which is
         the northeast corner of the
         Fort McDowell Indian
         Reservation;
        9. thence, southwesterly along                                                                         .........................................
         the northern boundary of the
         Fort McDowell Indian
         Reservation, which line is a
         common boundary with the Tonto
         National Forest, to a point
         where the boundary intersects
         with the eastern line of
         Section 12, Township 4 North,
         Range 6 East;
        10. thence, northerly along the                                                                        .........................................
         eastern line of Range 6 East to
         a point where the eastern line
         of Range 6 East intersects with
         the southern line of Township 5
         North, said line is the
         boundary between the Tonto
         National Forest and the east
         boundary of the McDowell
         Mountain Regional Park;
        11. thence, westerly along the                                                                         .........................................
         southern line of Township 5
         North to a point where the
         southern line intersects with
         the eastern line of Range 5
         East which line is the boundary
         of Tonto National Forest and
         the north boundary of McDowell
         Mountain Regional Park;
        12. thence, northerly along the                                                                        .........................................
         eastern line of Range 5 East to
         a point where the eastern line
         of Range 5 East intersects with
         the northern line of Township 5
         North, which line is the
         boundary of the Tonto National
         Forest;
        13. thence, westerly along the                                                                         .........................................
         northern line of Township 5
         North to a point where the
         northern line of Township 5
         North intersects with the
         easterly line of Range 4 East,
         said line is the boundary of
         the Tonto National Forest;
        14. thence, northerly along the                                                                        .........................................
         eastern line of Range 4 East to
         a point where the eastern line
         of Range 4 East intersects with
         the northern line of Township 6
         North, which line is the
         boundary of the Tonto National
         Forest;
        15. thence, westerly along the                                                                         .........................................
         northern line of Township 6
         North to a point of
         intersection with the Maricopa-
         Yavapai County line, which is
         generally described in Arizona
         Revised Statute Section 11-109
         as the center line of the Aqua
         Fria River (Also the north end
         of Lake Pleasant);

[[Page 31024]]


        16. thence, southwesterly and                                                                          .........................................
         southerly along the Maricopa-
         Yavapai County line to a point
         which is described by Arizona
         Revised Statute Section 11-109
         as being on the center line of
         the Aqua Fria River, two miles
         southerly and below the mouth
         of Humbug Creek;
        17. thence, southerly along the                                                                        .........................................
         center line of the Aqua Fria
         River to the intersection of
         the center line of the Aqua
         Fria River and the center line
         of Beardsley Canal, said point
         is generally in the northeast
         quarter of Section 17, Township
         5 North, Range 1 East, as shown
         on the U.S. Geological Survey's
         Baldy Mountain, Arizona
         Quadrangle Map, 7.5 Minute
         series (Topographic), dated
         1964;
        18. thence, southwesterly and                                                                          .........................................
         southerly along the center line
         of Beardsley Canal to a point
         which is the center line of the
         Beardsley Canal where it
         intersects with the center line
         of Indian School Road;
        19. thence, westerly along the                                                                         .........................................
         center line of West Indian
         School Road to a point where
         the center line of West Indian
         School Road intersects with the
         center line of North Jackrabbit
         Trail;
        20. thence, southerly along the                                                                        .........................................
         center line of Jackrabbit Trail
         approximately nine and three-
         quarter miles to a point where
         the center line of Jackrabbit
         Trail intersects with the Gila
         River, said point is generally
         on the north-south quarter
         section line of Section 8,
         Township 1 South, Range 2 West;
        21. thence, northeasterly and                                                                          .........................................
         easterly up the Gila River to a
         point where the Gila River
         intersects with the northern
         extension of the western
         boundary of Estrella Mountain
         Regional Park, which point is
         generally the quarter corner of
         the northern line of Section
         31, Township 1 North, Range 1
         West;
        22. thence, southerly along the                                                                        .........................................
         extension of the western
         boundary and along the western
         boundary of Estrella Mountain
         Regional Park to a point where
         the southern extension of the
         western boundary of Estrella
         Mountain Regional Park
         intersects with the southern
         line of Township 1 South;
        23. thence, easterly along the                                                                         .........................................
         southern line of Township 1
         South to a point where the
         south line of Township 1 South
         intersects with the western
         line of Range 1 East, which
         line is generally the southern
         boundary of Estrella Mountain
         Regional Park;
        24. thence, southerly along the                                                                        .........................................
         western line of Range 1 East to
         the southwest corner of Section
         18, Township 2 South, Range 1
         East, said line is the western
         boundary of the Gila River
         Indian Reservation;
        25. thence, easterly along the                                                                         .........................................
         southern boundary of the Gila
         River Indian Reservation, which
         is the southern line of
         Sections 13, 14, 15, 16, 17 and
         18, Township 2 South, Range 1
         East, to the boundary between
         Maricopa and Pinal Counties as
         described in Arizona Revised
         Statutes Section 11-109 and 11-
         113, which is the eastern line
         of Range 1 East;
        26. thence, northerly along the                                                                        .........................................
         eastern boundary of Range 1
         East, which is the common
         boundary between Maricopa and
         Pinal Counties, to a point
         where the eastern line of Range
         1 East intersects the Gila
         River;

[[Page 31025]]


        27. thence, southerly up the
         Gila River to a point where the
         Gila River intersects with the
         southern line of Township 2
         South; and
        28. thence, easterly along the
         southern line of Township 2
         South to the point of beginning
         which is a point where the
         southern line of Township 2
         South intersects with the
         eastern line of Range 7 East.
Tucson Area:
    Pima County (part)
        Tucson area.....................  ...........  1 hr.std.N.A.<SUP>2                                          .............<SUP>............................
    Rest of State.......................  ...........  1 hr.std.N.A.<SUP>2                                          .............<SUP>............................
        Apache County                                                                                          .............<SUP>............................
        Cochise County                                                                                         .........................................
        Coconino County                                                                                        .........................................
        Gila County                                                                                            .........................................
        Graham County                                                                                          .........................................
        Greenlee County                                                                                        .........................................
        La Paz County                                                                                          .........................................
        Maricopa County (part)                                                                                 .........................................
        area outside of Phoenix                                                                                .........................................
        Mohave County                                                                                          .........................................
        Navajo County                                                                                          .........................................
        Pima County (part)                                                                                     .........................................
        Remainder of county                                                                                    .........................................
        Pinal County                                                                                           .........................................
        Santa Cruz County                                                                                      .........................................
        Yavapai County                                                                                         .........................................
        Yuma County                                                                                            .........................................
--------------------------------------------------------------------------------------------------------------------------------------------------------
<SUP>1 This date is June 5, 1998, unless otherwise noted.
<SUP>2 1 hour standard Not Applicable.

* * * * *
    5. In Sec. 81.304, the table entitled ``Arkansas-Ozone'' is revised
to read as follows:


Sec. 81.304  Arkansas.

* * * * *

                                                            Arkansas--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                             Date<SUP>1                        Type                       Date<SUP>1                        Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
AQCR 016 Central Arkansas Intrastate      ...........  1 hr.std.N.A. <SUP>2                                         ..............<SUP>...........................
 (part).
    Pulaski County                                                                                             ..............<SUP>...........................
AQCR 016 Central Arkansas Intrastate      ...........  1 hr.std.N.A. <SUP>2                                         ..............<SUP>...........................
 (Remainder of).
    Chicot County                                                                                              ..............<SUP>...........................
    Clark County                                                                                               ..............<SUP>...........................
    Cleveland County                                                                                           .........................................
    Conway County                                                                                              .........................................
    Dallas County                                                                                              .........................................
    Desha County                                                                                               .........................................
    Drew County                                                                                                .........................................
    Faulkner County                                                                                            .........................................
    Garland County                                                                                             .........................................
    Grant County                                                                                               .........................................
    Hot Spring County                                                                                          .........................................
    Jefferson County                                                                                           .........................................
    Lincoln County                                                                                             .........................................
    Lonoke County                                                                                              .........................................
    Perry County                                                                                               .........................................
    Pope County                                                                                                .........................................
    Saline County                                                                                              .........................................
    Yell County                                                                                                .........................................
AQCR 017 Metropolitan Fort Smith          ...........  1 hr.std.N.A. <SUP>2                                         ..............<SUP>...........................
 Interstate.
    Benton County                                                                                              ..............<SUP>...........................
    Crawford County                                                                                            .........................................
    Sebastian County                                                                                           .........................................
    Washington County                                                                                          .........................................

[[Page 31026]]


AQCR 018 Metropolitan Memphis Interstate  ...........  1 hr.std.N.A. <SUP>2                                         ..............<SUP>...........................
    Crittenden County                                                                                          .........................................
AQCR 019 Monroe-El Dorado Interstate....  ...........  1 hr.std.N.A. <SUP>2                                         ..............<SUP>...........................
    Ashley County                                                                                              ..............<SUP>...........................
    Bradley County                                                                                             ..............<SUP>...........................
    Calhoun County                                                                                             ..............<SUP>...........................
    Nevada County                                                                                              ..............<SUP>...........................
    Ouachita County                                                                                            .........................................
    Union County                                                                                               .........................................
AQCR 020 Northeast Arkansas Intrastate..  ...........  1 hr.std.N.A. <SUP>2                                         ..............<SUP>...........................
    Arkansas County                                                                                            .........................................
    Clay County                                                                                                .........................................
    Craighead County                                                                                           .........................................
    Cross County                                                                                               .........................................
    Greene County                                                                                              .........................................
    Independence County                                                                                        .........................................
    Jackson County                                                                                             .........................................
    Lawrence County                                                                                            .........................................
    Lee County                                                                                                 .........................................
    Mississippi County                                                                                         .........................................
    Monroe County                                                                                              .........................................
    Phillips County                                                                                            .........................................
    Poinsett County                                                                                            .........................................
    Prairie County                                                                                             .........................................
    Randolph County                                                                                            .........................................
    Sharp County                                                                                               .........................................
    St. Francis County                                                                                         .........................................
    White County                                                                                               .........................................
    Woodruff County                                                                                            .........................................
AQCR 021 Northwest Arkansas Intrastate..  ...........  1 hr.std.N.A. <SUP>2                                         ..............<SUP>...........................
    Baxter County                                                                                              ..............<SUP>...........................
    Boone County                                                                                               ..............<SUP>...........................
    Carroll County                                                                                             ..............<SUP>...........................
    Cleburne County                                                                                            .........................................
    Franklin County                                                                                            .........................................
    Fulton County                                                                                              .........................................
    Izard County                                                                                               .........................................
    Johnson County                                                                                             .........................................
    Logan County                                                                                               .........................................
    Madison County                                                                                             .........................................
    Marion County                                                                                              .........................................
    Montgomery County                                                                                          .........................................
    Newton County                                                                                              .........................................
    Pike County                                                                                                .........................................
    Polk County                                                                                                .........................................
    Scott County                                                                                               .........................................
    Searcy County                                                                                              .........................................
    Stone County                                                                                               .........................................
    Van Buren County                                                                                           .........................................
AQCR 022 Shreveport-Texarkana-Tyler       ...........  1 hr.std.N.A. <SUP>2                                         ..............<SUP>...........................
 Interstate.
    Columbia County                                                                                            .........................................
    Hempstead County                                                                                           .........................................
    Howard County                                                                                              .........................................
    Lafayette County                                                                                           .........................................
    Little River County                                                                                        .........................................
    Miller County                                                                                              .........................................
    Sevier County                                                                                              .........................................
--------------------------------------------------------------------------------------------------------------------------------------------------------
<SUP>1 This date is June 5, 1998, unless otherwise noted.
<SUP>2 1 hour standard Not Applicable.

* * * * *
    6. In Sec. 81.305, the table entitled ``California-Ozone'' is
revised to read as follows:


Sec. 81.305  California.

* * * * *

[[Page 31027]]



                                                           California--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Amador County Area......................     11/15/90  Unclassifiable/Attainment................     11/15/90  .........................................
Calaveras County Area:
    Calaveras County....................     11/15/90  Unclassifiable/Attainment................     11/15/90  .........................................
Chico Area:
    Butte County........................  ...........  1 hr.std.N.A.\2\.........................
Imperial County Area:
    Imperial County.....................     11/15/90  Nonattainment............................     11/15/90  Sec. 185A Area \3\
Los Angeles-South Coast Air Basin Area:
    Los Angeles County (part)--that          11/15/90  Nonattainment............................     11/15/90  Extreme.
     portion of Los Angeles County which
     lies south and west of a line
     described as follows.
        1. Beginning at the Los Angeles--
         San Bernardino County boundary
         and running west along the
         Township line common to
         Township 3 North and Township 2
         North, San Bernardino Base and
         Meridian;
        2. then north along the range
         line common to Range 8 West and
         Range 9 West;
        3. then west along the Township
         line common to Township 4 North
         and Township 3 North;
        4. then north along the range
         line common to Range 12 West
         and Range 13 West to the
         southeast corner of Section 12,
         Township 5 North and Range 13
         West;
        5. then west along the south
         boundaries of Sections 12, 11,
         10, 9, 8, and 7, Township 5
         North and Range 13 West to the
         boundary of the Angeles
         National Forest which is
         collinear with the range line
         common to Range 13 West and
         Range 14 West;
        6. then north and west along the
         Angeles National Forest
         boundary to the point of
         intersection with the Township
         line common to Township 7 North
         and Township 6 North (point is
         at the northwest corner of
         Section 4 in Township 6 North
         and Range 14 West);
        7. then west along the Township
         line common to Township 7 North
         and Township 6 North;
        8. then north along the range
         line common to Range 15 West
         and Range 16 West to the
         southeast corner of Section 13,
         Township 7 North and Range 16
         West;
        9. then along the south
         boundaries of Sections 13, 14,
         15, 16, 17, and 18, Township 7
         North and Range 16 West;
        10. then north along the range
         line common to Range 16 West
         and Range 17 West to the north
         boundary of the Angeles
         National Forest (collinear with
         the Township line common to
         Township 8 North and Township 7
         North);
        11. then west along the Angeles
         National Forest boundary to the
         point of intersection with the
         south boundary of the Rancho La
         Liebre Land Grant;
        12. then west and north along
         this land grant boundary to the
         Los Angeles-Kern County
         boundary.
    Orange County.......................     11/15/90  Nonattainment............................     11/15/90  Extreme.
    Riverside County (part)--that            11/15/90  Nonattainment............................     11/15/90  Extreme.
     portion of.
    Riverside County which lies to the
     west of a line described as
     follows:
        1. Beginning at the Riverside--
         San Diego County boundary and
         running north along the range
         line common to Range 4 East and
         Range 3 East, San Bernardino
         Base and Meridian;
        2. then east along the Township
         line common to Township 8 South
         and Township 7 South;
        3. then north along the range
         line common to Range 5 East and
         Range 4 East;

[[Page 31028]]


        4. then west along the Township
         line common to Township 6 South
         and Township 7 South to the
         southwest corner of Section 34,
         Township 6 South, Range 4 East;
        5. then north along the west
         boundaries of Sections 34, 27,
         22, 15, 10, and 3, Township 6
         South, Range 4 East;
        6. then west along the Township
         line common to Township 5 South
         and Township 6 South;
        7. then north along the range
         line common to Range 4 East and
         Range 3 East;
        8. then west along the south
         boundaries of Sections 13, 14,
         15, 16, 17, and 18, Township 5
         South, Range 3 East;
        9. then north along the range
         line common to Range 2 East and
         Range 3 East;
        10. then west along the Township
         line common to Township 4 South
         and Township 3 South to the
         intersection of the southwest
         boundary of partial Section 31,
         Township 3 South, Range 1 West;
        11. then northwest along that
         line to the intersection with
         the range line common to Range
         2 West and Range 1 West;
        12. then north to the Riverside-
         San Bernardino County line.
    San Bernardino County (part)--that       11/15/90  Nonattainment............................     11/15/90  Extreme.
     portion of San Bernardino County
     which lies south and west of line
     of a line described as follows:.
        1. Beginning at the San
         Bernardino--Riverside County
         boundary and running north
         along the range line common to
         Range 3 East and Range 2 East,
         San Bernardino Base and
         Meridian;
        2. then west along the Township
         line common to Township 3 North
         and Township 2 North to the San
         Bernardino--Los Angeles County
         boundary.
Monterey Bay Area:
    Monterey County.....................  ...........  1 hr.std.N.A. \2\........................
    San Benito County...................  ...........  1 hr.std.N.A. \2\........................
    Santa Cruz County...................  ...........  1 hr.std.N.A. \2\........................
Sacramento Metro Area:
    El Dorado County (part).............     11/15/90  Nonattainment............................       6/1/95  Severe-15.
    All portions of the county except
     that portion of El Dorado County
     within the drainage area naturally
     tributary to Lake Tahoe including
     said Lake.
    Placer County (part):...............     11/15/90  Nonattainment............................       6/1/95  Severe-15.
    All portions of the county except
     that portion of Placer County
     within the drainage area naturally
     tributary to Lake Tahoe including
     said Lake, plus that area in the
     vicinity of the head of the Truckee
     River described as follows:
     commencing at the point common to
     the aforementioned drainage area
     crestline and the line common to
     Townships 15 North and 16 North,
     Mount Diablo Base and Meridian
     (M.D.B.&M.), and following that
     line in a westerly direction to the
     northwest corner of Section 3,
     Township 15 North, Range 16 East,
     M.D.B.&M., thence south along the
     west line of Sections 3 and 10,
     Township 15 North, Range 16 East,
     M.D.B.&M., to the intersection with
     the said drainage area crestline,
     thence following the said drainage
     area boundary in a southeasterly,
     then northeasterly direction to and
     along the Lake Tahoe Dam, thence
     following the said drainage area
     crestline in a northeasterly, then
     northwesterly direction to the
     point of beginning.
    Sacramento County...................     11/15/90  Nonattainment............................       6/1/95  Severe-15.
    Solano County (part) That portion of     11/15/90  Nonattainment............................       6/1/95  Severe-15.

[[Page 31029]]


    Solano County which lies north and
     east of a line described as
     follows: Description of boundary in
     Solano county between San Francisco
     and Sacramento: Beginning at the
     intersection of the westerly
     boundary of Solano County and the
     \1/4\ section line running east and
     west through the center of Section
     34; T. 6 N., R. 2 W., M.D.B.&M.,
     thence east along said \1/4\
     section line to the east boundary
     of Section 36, T. 6 N., R. 2 W.,
     thence south \1/2\ mile and east
     2.0 miles, more or less, along the
     west and south boundary of Los
     Putos Rancho to the northwest
     corner of Section 4, T. 5 N., R. 1
     W., thence east along a line common
     to T. 5 N. and T. 6 N. to the
     northeast corner of Section 3, T. 5
     N., R. 1 E., thence south along
     section lines to the southeast
     corner of Section 10, T. 3 N., R. 1
     E., thence east along section lines
     to the south \1/4\ corner of
     Section 8, T. 3 N., R. 2 E., thence
     east to the boundary between Solano
     and Sacramento Counties.
    Sutter County (part--southern            11/15/90  Nonattainment............................       6/1/95  Severe-15.
     portion) South of a line connecting
     the northern border of Yolo Co. to
     the SW tip of Yuba Co. and
     continuing along the southern Yuba
     County border to Placer County..
    Yolo County.........................     11/15/90  Nonattainment............................       6/1/95  Severe-15.
San Diego Area:
    San Diego County....................      2/21/95  Nonattainment............................      2/21/95  Serious.
San Francisco-Bay Area:
    Alameda County......................      6/21/95  Attainment...............................
    Contra Costa County.................      6/21/95  Attainment...............................
    Marin County........................      6/21/95  Attainment...............................
    Napa County.........................      6/21/95  Attainment...............................
    San Francisco County................      6/21/95  Attainment...............................
    San Mateo County....................      6/21/95  Attainment...............................
    Santa Clara County..................      6/21/95  Attainment...............................
    Solano County (part)................      6/21/95  Attainment...............................
        That portion of the county that
         lies south and west of the line
         described that follows:
         Description of boundary in
         Solano County between San
         Francisco and Sacramento:
         Beginning at the intersection
         at the westerly boundary of
         Solano County and the \1/4\
         section line running east and
         west through the center of
         Section 34; T.6 N., R. 2 W.,
         M.D.B.&M., thence east along
         said \1/2\ section line to the
         east boundary of Section 36, T.
         6 N., R. 2 W., thence south \1/
         2\ mile and east 2.0 miles,
         more or less, along the west
         and south boundary of Los Putos
         Rancho to the northwest corner
         of Section 4, T. 5 N., R. 1 W,
         thence east along a line common
         to T. 5 N., and T. 6 N. to the
         northeast corner of Section 3,
         T. 5 N., R. 1 E., thence south
         along section lines to the
         southeast corner of Section 10
         T. 3 N., R. 1 E., thence east
         along section lines to the
         south \1/4\ corner of Section 8
         T. 3 N., R. 2 E., thence east
         to the boundary between Solano
         and Sacramento Counties.
    Sonoma County (part)................      6/21/95  Attainment...............................

[[Page 31030]]


        That portion of Sonoma county
         which lies south and east of a
         line described as follows:
         Beginning at the south-easterly
         corner of the Rancho Estero
         Americano, being on the
         boundary line between Marin
         Sonoma Counties, California;
         thence running northerly along
         the easterly boundary line of
         said Rancho Estero Americano to
         the northeasterly corner
         therof, being an angle corner
         in the westerly boundary line
         of Rancho Canada de Jonive,
         thence running along said
         boundary of Rancho Canada de
         Jonive westerly; northerly and
         easterly to its intersection
         with the easterly line of
         Graton Road; thence running
         along the easterly and
         southerly line of Graton Road
         northerly and easterly to its
         intersection with the easterly
         line of Sullivan Road; thence
         running northerly along said
         easterly line of Sullivan Road
         to the southerly line of Green
         Valley Road; thence running
         easterly along the said
         southerly line of Green Valley
         Road and easterly along the
         southerly line of State Highway
         116, to the westerly and
         northerly line of Vine Hill
         Road; thence running along the
         westerly and northerly line of
         Vine Hill Road, northerly and
         easterly to its intersection
         with the westerly line of
         Laguna Road; thence running
         northerly along the westerly
         line of Laguna Road and the
         northerly projection thereof to
         the northerly line of Trenton
         Road; thence running westerly
         along the northerly line of
         said Trenton Road to the
         easterly line of Trenton-
         Healdsburg Road; thence running
         northerly along said easterly
         line of Trenton-Healdsburg Road
         to the easterly line of
         Eastside Road; thence running
         northerly along said easterly
         line of Eastside Road to its
         intersection with the southerly
         line of Rancho Sotoyome; thence
         running easterly along said
         southerly line of Rancho
         Sotoyome to its intersection
         with the Township line common
         to Townships 8 and 9 North, Mt.
         Diablo Base and Meridian;
         thence running easterly along
         said Township line to its
         intersection with the boundary
         line between Sonoma and Napa
         Counties, State of Califormia.
San Joaquin Valley Area:
    Fresno County.......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Kern County.........................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Kings County........................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Madera County.......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Merced County.......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    San Joaquin County..................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Stanislaus County...................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Tulare County.......................     11/15/90  Nonattainment............................     11/15/90  Serious.
Santa Barbara--Santa Maria--Lompoc Area:
    Santa Barbara County................     11/15/90  Nonattainment............................      1/09/98  Serious.
Southeast Desert Modified AQMA Area:
    Los Angeles County (part)--that          11/15/90  Nonattainment............................     11/15/90  Severe-17.
     portion of Los Angeles County which
     lies north and east of a line
     described as follows:.
        1. Beginning at the Los Angeles--
         San Bernardino County boundary
         and running west along the
         Township line common to
         Township 3 North and Township 2
         North, San Bernardino Base and
         Meridian;
        2. then north along the range
         line common to Range 8 West and
         Range 9 West;
        3. then west along the Township
         line common to Township 4 North
         and Township 3 North;

[[Page 31031]]


        4. then north along the range
         line common to Range 12 West
         and Range 13 West to the
         southeast corner of Section 12,
         Township 5 North and Range 13
         West;
        5. then west along the south
         boundaries of Sections 12, 11,
         10, 9, 8, and 7, Township 5
         North and Range 13 West to the
         boundary of the Angeles
         National Forest which is
         collinear with the range line
         common to Range 13 West and
         Range 14 West;
        6. then north and west along the
         Angeles National Forest
         boundary to the point of
         intersection with the Township
         line common to Township 7 North
         and Township 6 North (point is
         at the northwest corner of
         Section 4 in Township 6 North
         and Range 14 West);
        7. then west along the Township
         line common to Township 7 North
         and Township 6 North;
        8. then north along the range
         line common to Range 15 West
         and Range 16 West to the
         southeast corner of Section 13,
         Township 7 North and Range 16
         West;
        9. then along the south
         boundaries of Sections 13, 14,
         15, 16, 17, and 18, Township 7
         North and Range 16 West;
        10. then north along the range
         line common to Range 16 West
         and Range 17 West to the north
         boundary of the Angeles
         National Forest (collinear with
         the Township line common to
         Township 8 North and Township 7
         North);
        11. then west along the Angeles
         National Forest boundary to the
         point of intersection with the
         south boundary of the Rancho La
         Liebre Land Grant;
        12. then west and north along
         this land grant boundary to the
         Los Angeles-Kern County
         boundary.
    Riverside County (part)--that            11/15/90  Nonattainment............................     11/15/90  Severe-17.
     portion of Riverside County which
     lies to the east of a line
     described as follows:.
        1. Beginning at the Riverside--
         San Diego County boundary and
         running north along the range
         line common to Range 4 East and
         Range 3 East, San Bernardino
         Base and Meridian;
        2. then east along the Township
         line common to Township 8 South
         and Township 7 South;
        3. then north along the range
         line common to Range 5 East and
         Range 4 East;
        4. then west along the Township
         line common to Township 6 South
         and Township 7 South to the
         southwest corner of Section 34,
         Township 6 South, Range 4 East;
        5. then north along the west
         boundaries of Sections 34, 27,
         22, 15, 10, and 3, Township 6
         South, Range 4 East;
        6. then west along the Township
         line common to Township 5 South
         and Township 6 South;
        7. then north along the range
         line common to Range 4 East and
         Range 3 East;
        8. then west along the south
         boundaries of Sections 13, 14,
         15, 16, 17, and 18, Township 5
         South, Range 3 East;
        9. then north along the range
         line common to Range 2 East and
         Range 3 East;
        10. then west along the Township
         line common to Township 4 South
         and Township 3 South to the
         intersection of the southwest
         boundary of partial Section 31,
         Township 3 South, Range 1 West;
        11. then northwest along that
         line to the intersection with
         the range line common to Range
         2 West and Range 1 West;

[[Page 31032]]


        12. then north to the Riverside-
         San Bernardino County line, and
         that portion of Riverside
         County which lies to the west
         of a line described as follows:
        13. beginning at the northeast
         corner of Section 4, Township 2
         South, Range 5 East, a point on
         the boundary line common to
         Riverside and San Bernardino
         Counties;
        14. then southerly along section
         lines to the centerline of the
         Colorado River Aquaduct;
        15. then southeasterly along the
         centerline of said Colorado
         River Aquaduct to the southerly
         line of Section 36, Township 3
         South, Range 7 East;
        16. then easterly along the
         Township line to the northeast
         corner of Section 6, Township 4
         South, Range 9 East;
        17. then southerly along the
         easterly line of Section 6 to
         the southeast corner thereof;
        18. then easterly along section
         lines to the northeast corner
         of Section 10, Township 4
         South, Range 9 East;
        19. then southerly along section
         lines to the southeast corner
         of Section 15, Township 4
         South, Range 9 East;
        20. then easterly along the
         section lines to the northeast
         corner of Section 21, Township
         4 South, Range 10 East;
        21. then southerly along the
         easterly line of Section 21 to
         the southeast corner thereof;
        22. then easterly along the
         northerly line of Section 27 to
         the northeast corner thereof;
        23. then southerly along section
         lines to the southeast corner
         of Section 34, Township 4
         South, Range 10 East;
        24. then easterly along the
         Township line to the northeast
         corner of Section 2, Township 5
         South, Range 10 East;
        25. then southerly along the
         easterly line of Section 2, to
         the southeast corner thereof;
        26. then easterly along the
         northerly line of Section 12 to
         the northeast corner thereof;
        27. then southerly along the
         range line to the southwest
         corner of Section 18, Township
         5 South, Range 11 East;
        28. then easterly along section
         lines to the northeast corner
         of Section 24, Township 5
         South, Range 11 East;
        29. then southerly along the
         range line to the southeast
         corner of Section 36, Township
         8 South, Range 11 East, a point
         on the boundary line common to
         Riverside and San Diego
         Counties.
    San Bernadino County (part)--that        11/15/90  Nonattainment............................     11/15/90  Severe-17.
     portion of San Bernardino County
     which lies north and east of a line
     described as follows:.
        1. Beginning at the San
         Bernardino--Riverside County
         boundary and running north
         along the range line common to
         Range 3 East and Range 2 East,
         San Bernardino Base and
         Meridian;
        2. then west along the Township
         line common to Township 3 North
         and Township 2 North to the San
         Bernardino--Los Angeles County
         boundary; and that portion of
         San Bernardino County which
         lies south and west of a line
         described as follows:
        3. latitude 35 degrees, 10
         minutes north and longitude 115
         degrees, 45 minutes west.
Ventura County Area:
    Ventura County......................     11/15/90  Nonattainment............................     11/15/90  Severe-15.
Yuba City Area:
    Sutter County (part--northern         ...........  1 hr.std.N.A.\2\.........................
     portion).

[[Page 31033]]


    North of a line connecting the
     northern border of Yolo County to
     the SW tip of Yuba County and
     continuing along the southern Yuba
     County border to Placer County.
    Yuba County.........................  ...........  1 hr.std.N.A.\2\.........................
Great Basin Valleys Air Basin...........  ...........  1 hr.std.N.A.\2\.........................
    Alpine County.......................
    Inyo County.........................
    Mono County.........................
    Lake County Air Basin...............  ...........  1 hr.std.N.A.\2\.........................
    Lake County.........................
Lake Tahoe Air Basin....................  ...........  1 hr.std.N.A.\2\.........................
    El Dorado County (part)
    Lake Tahoe Area: As described under
     40 CFR 81.275.
    Placer County (part)
    Lake Tahoe Area: As described under
     40 CFR 81.275.
Mountain Counties Air Basin (Remainder
 of):
    Mariposa County.....................  ...........  1 hr.std.N.A.\2\.........................
    Nevada County.......................  ...........  1 hr.std.N.A.\2\.........................
    Plumas County.......................  ...........  1 hr.std.N.A.\2\.........................
    Sierra County.......................  ...........  1 hr.std.N.A.\2\.........................
    Tuolumne County.....................  ...........  1 hr.std.N.A.\2\.........................
North Coast Air Basin...................  ...........  1 hr.std.N.A.\2\.........................
    Del Norte County
    Humboldt County
    Mendocino County
    Sonoma County (part)
    Remainder of County
    Trinity County
Northeast Plateau Air Basin.............  ...........  1 hr.std.N.A.\2\.........................
    Lassen County
    Modoc County
    Siskiyou County
Sacramento Valley Air Basin (Remainder
 of):
    Colusa County.......................  ...........  1 hr.std.N.A.\2\.........................
    Glenn County........................  ...........  1 hr.std.N.A.\2\.........................
    Shasta County.......................  ...........  1 hr.std.N.A.\2\.........................
    Tehama County.......................  ...........  1 hr.std.N.A.\2\.........................
South Central Coast Air Basin (Remainder
 of):
    Channel Islands.....................  ...........  1 hr.std.N.A.\2\.........................
    San Luis Obispo County..............  ...........  1 hr.std.N.A.\2\.........................
Southeast Desert NON-AQMA:
    Riverside County (part).............
    Remainder of County.................  ...........  1 hr.std.N.A.\2\.........................
    San Bernadino County (part)
    Remainder of County.................  ...........  1 hr.std.N.A.\2\ ........................
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.
\3\ An area designated as an ozone nonattainment area as of the date of enactment of the CAAA of 1990 that did not violate the ozone NAAQS during the
  period of 1987-1989.

* * * * *
    7. In Sec. 81.306, the table entitled ``Colorado-Ozone'' is revised
to read as follows:


Sec. 81.306  Colorado.

* * * * *

                                                            Colorado--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Denver--Boulder Area:
    Adams County (part)
        West of Kiowa Creek.............  ...........  1 hr.std.N.A.\2\
    Arapahoe County (part)
        West of Kiowa Creek.............  ...........  1 hr.std.N.A.\2\
    Boulder County (part)
        excluding Rocky Mtn. National     ...........  1 hr.std.N.A.\2\
         Park.

[[Page 31034]]


    Denver County.......................  ...........  1 hr.std.N.A.\2\
    Douglas County......................  ...........  1 hr.std.N.A.\2\
    Jefferson County....................  ...........  1 hr.std.N.A.\2\
State AQCR 01...........................  ...........  1 hr.std.N.A.\2\
    Logan County
    Morgan County
    Phillips County
    Sedgwick County
    Washington County
    Yuma County
State AQCR 02...........................  ...........  1 hr.std.N.A.\2\
    Larimer County
    Weld County
State AQCR 03 (Remainder of)............  ...........  1 hr.std.N.A.\2\
    Adams County (part)
        East of Kiowa Creek
    Arapahoe County (part)
        East of Kiowa Creek
    Boulder County (part)
        Rocky Mtn. National Park Only
    Clear Creek County
    Gilpin County
State AQCR 11...........................  ...........  1 hr.std.N.A.\2\
    Garfield County
    Mesa County
    Moffat County
    Rio Blanco County
Rest of State...........................  ...........  1 hr.std.N.A.\2\
    Alamosa County
    Archuleta County
    Baca County
    Bent County
    Chaffee County
    Cheyenne County
    Conejos County
    Costilla County
    Crowley County
    Custer County
    Delta County
    Dolores County
    Eagle County
    El Paso County
    Elbert County
    Fremont County
    Grand County
    Gunnison County
    Hinsdale County
    Huerfano County
    Jackson County
    Kiowa County
    Kit Carson County
    La Plata County
    Lake County
    Las Animas County
    Lincoln County
    Mineral County
    Montezuma County
    Montrose County
    Otero County
    Ouray County
    Park County
    Pitkin County
    Prowers County
    Pueblo County
    Rio Grande County
    Routt County
    Saguache County
    San Juan County
    San Miguel County
    Summit County

[[Page 31035]]


    Teller County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    8. In Sec. 81.307, the table entitled ``Connecticut-Ozone'' is
revised to read as follows:


Sec. 81.307  Connecticut.

* * * * *

                                                          Connecticut--Ozone (1-hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Greater Connecticut Area:
    Farfield County (part)..............     11/15/90  Nonattainment............................     11/15/90  Serious.
        Shelton City
    Hartford County.....................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Litchfield County (part)............     11/15/90  Nonattainment............................     11/15/90  Serious.
        All cities and townships except:
            Bridgewater Town, New
             Milford Town
    Middlesex County....................     11/15/90  Nonattainment............................     11/15/90  Serious.
    New Haven County....................     11/15/90  Nonattainment............................     11/15/90  Serious.
    New London County...................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Tolland County......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Windham County......................     11/15/90  Nonattainment............................     11/15/90  Serious.
New York--N. New Jersey--Long Island
 Area:
    Fairfield County (part).............     11/15/90  Nonattainment............................     11/15/90  Severe-17.
        All cities and towns except
         Shelton City
    Litchfield County (part)............     11/15/90  Nonattainment............................     11/15/90  Severe-17.
        Bridgewater Town, New Milford
         Town
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.

* * * * *
    9. In Sec. 81.308, the table entitled ``Delaware-Ozone'' is revised
to read as follows:


Sec. 81.308  Delaware.

* * * * *

                                                            Delaware--Ozone (1-hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Philadelphia-Wilmington-Trenton Area:
    Kent County.........................     11/15/90  Nonattainment............................     11/15/90  Severe-15.
    New Castle County...................     11/15/90  Nonattainment............................     11/15/90  Severe-15.
Sussex County Area:
    Sussex County.......................  ...........  1 hr.std.N.A.\2\
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    10. In Sec. 81.309, the table entitled ``District of Columbia-
Ozone'' is revised to read as follows:


Sec. 81.309  District of Columbia.

* * * * *

                                                      District of Columbia--Ozone (1-hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Washington Area:
    Washington

[[Page 31036]]


        Entire Area.....................     11/15/90  Nonattainment............................     11/15/90  Serious.
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.

* * * * *
    11. In Sec. 81.310, the table entitled ``Florida-Ozone'' is revised
to read as follows:


Sec. 81.310  Florida.

* * * * *

                                                             Florida-Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Statewide...............................  ...........  1 hr.std.N.A.\2\
    Alachua County
    Baker County
    Bay County
    Bradford County
    Brevard County
    Broward County
    Calhoun County
    Charlotte County
    Citrus County
    Clay County
    Collier County
    Columbia County
    Dade County
    De Soto County
    Dixie County
    Duval County
    Escambia County
    Flagler County
    Franklin County
    Gadsden County
    Gilchrist County
    Glades County
    Gulf County
    Hamilton County
    Hardee County
    Hendry County
    Hernando County
    Highlands County
    Hillsborough County
    Holmes County
    Indian River County
    Jackson County
    Jefferson County
    Lafayette County
    Lake County
    Lee County
    Leon County
    Levy County
    Liberty County
    Madison County
    Manatee County
    Marion County
    Martin County
    Monroe County
    Nassau County
    Okaloosa County
    Okeechobee County
    Orange County
    Osceola County
    Palm Beach County
    Pasco County
    Pinellas County
    Polk County
    Putnam County

[[Page 31037]]


    Santa Rosa County
    Sarasota County
    Seminole County
    St. Johns County
    St. Lucie County
    Sumter County
    Suwannee County
    Taylor County
    Union County
    Volusia County
    Wakulla County
    Walton County
    Washington County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    12. In Sec. 81.311, the table entitled ``Georgia--Ozone'' is
revised to read as follows:


Sec. 81.311  Georgia.

* * * * *

                                                             Georgia-Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Atlanta Area:
    Cherokee County.....................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Clayton County......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Cobb County.........................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Coweta County.......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    De Kalb County......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Douglas County......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Fayette County......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Forsyth County......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Fulton County.......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Gwinnett County.....................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Henry County........................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Paulding County.....................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Rockdale County.....................     11/15/90  Nonattainment............................     11/15/90  Serious.
Spalding County Area:
    Spalding County.....................     11/15/90  Unclassifiable...........................     11/15/90
                                                       /Attainment..............................
Rest of State...........................  ...........  1 hr.std.N.A.\2\
    Appling County
    Atkinson County
    Bacon County
    Baker County
    Baldwin County
    Banks County
    Barrow County
    Bartow County
    Ben Hill County
    Berrien County
    Bibb County
    Bleckley County
    Brantley County
    Brooks County
    Bryan County
    Bulloch County
    Burke County
    Butts County
    Calhoun County
    Camden County
    Candler County
    Carroll County
    Catoosa County
    Charlton County

[[Page 31038]]


    Chatham County
    Chattahoochee County
    Chattooga County
    Clarke County
    Clay County
    Clinch County
    Coffee County
    Colquitt County
    Columbia County
    Cook County
    Crawford County
    Crisp County
    Dade County
    Dawson County
    Decatur County
    Dodge County
    Dooly County
    Dougherty County
    Early County
    Echols County
    Effingham County
    Elbert County
    Emanuel County
    Evans County
    Fannin County
    Floyd County
    Franklin County
    Gilmer County
    Glascock County
    Glynn County
    Gordon County
    Grady County
    Greene County
    Habersham County
    Hall County
    Hancock County
    Haralson County
    Harris County
    Hart County
    Heard County
    Houston County
    Irwin County
    Jackson County
    Jasper County
    Jeff Davis County
    Jefferson County
    Jenkins County
    Johnson County
    Jones County
    Lamar County
    Lanier County
    Laurens County
    Lee County
    Liberty County
    Lincoln County
    Long County
    Lowndes County
    Lumpkin County
    Macon County
    Madison County
    Marion County
    McDuffie County
    McIntosh County
    Meriwether County
    Miller County
    Mitchell County
    Monroe County
    Montgomery County
    Morgan County
    Murray County

[[Page 31039]]


    Muscogee County
    Newton County
    Oconee County
    Oglethorpe County
    Peach County
    Pickens County
    Pierce County
    Pike County
    Polk County
    Pulaski County
    Putnam County
    Quitman County
    Rabun County
    Randolph County
    Richmond County
    Schley County
    Screven County
    Seminole County
    Stephens County
    Stewart County
    Sumter County
    Talbot County
    Taliaferro County
    Tattnall County
    Taylor County
    Telfair County
    Terrell County
    Thomas County
    Tift County
    Toombs County
    Towns County
    Treutlen County
    Troup County
    Turner County
    Twiggs County
    Union County
    Upson County
    Walker County
    Walton County
    Ware County
    Warren County
    Washington County
    Wayne County
    Webster County
    Wheeler County
    White County
    Whitfield County
    Wilcox County
    Wilkes County
    Wilkinson County
    Worth County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    13. In Sec. 81.312, the table entitled ``Hawaii--Ozone'' is revised
to read as follows:


Sec. 81.312  Hawaii.

* * * * *

                                                             Hawaii-Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Statewide...............................  ...........  1 hr.std.N.A.\2\
    Hawaii County
    Honolulu County
    Kalawao

[[Page 31040]]


    Kauai County
    Maui County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    14. In Sec. 81.313, the table entitled ``Idaho--Ozone'' is revised
to read as follows:


Sec. 81.313  Idaho.

* * * * *

                                                              Idaho-Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
AQCR 61 Eastern Idaho Intrastate........  ...........  1 hr.std.N.A.\2\
    Bannock County
    Bear Lake County
    Bingham County
    Bonneville County
    Butte County
    Caribou County
    Clark County
    Franklin County
    Fremont County
    Jefferson County
    Madison County
    Oneida County
    Power County
    Teton County
AQCR 62 E Washington-N Idaho Interstate.  ...........  1 hr.std.N.A.\2\
    Benewah County
    Kootenai County
    Latah County
    Nez Perce County
    Shoshone County
AQCR 63 Idaho Intrastate................  ...........  1 hr.std.N.A.\2\
    Adams County
    Blaine County
    Boise County
    Bonner County
    Boundary County
    Camas County
    Cassia County
    Clearwater County
    Custer County
    Elmore County
    Gem County
    Gooding County
    Idaho County
    Jerome County
    Lemhi County
    Lewis County
    Lincoln County
    Minidoka County
    Owyhee County
    Payette County
    Twin Falls County
    Valley County
    Washington County
AQCR 64 Metropolitan Boise Interstate...  ...........  1 hr.std.N.A.\2\
    Ada County
    Canyon County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    15. In Sec. 81.314, the table entitled ``Illinois--Ozone'' is
revised to read as follows:

[[Page 31041]]

Sec. 81.314  Illinois.

* * * * *

                                                            Illinois--Ozone (1-hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Chicago-Gary-Lake County Area:
    Cook County.........................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
    Du Page County......................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
    Grundy County (part)
        Aux Sable Township..............     11/15/90  Nonattainment............................     11/15/90  Severe-17.
        Goose Lake Township.............     11/15/90  Nonattainment............................     11/15/90  Severe-17.
    Kane County.........................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
    Kendall County (part)
        Oswego Township.................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
    Lake County.........................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
    McHenry County......................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
    Will County.........................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
Jersey County Area:
    Jersey County.......................  ...........  1 hr.std.N.A.\2\
St. Louis Area:
    Madison County......................     11/15/90  Nonattainment............................     11/15/90  Moderate.
    Monroe County.......................     11/15/90  Nonattainment............................     11/15/90  Moderate.
    St. Clair County....................     11/15/90  Nonattainment............................     11/15/90  Moderate.
Adams County............................  ...........  1 hr.std.N.A.\2\
Alexander County........................  ...........  1 hr.std.N.A.\2\
Bond County.............................  ...........  1 hr.std.N.A.\2\
Boone County............................  ...........  1 hr.std.N.A.\2\
Brown County............................  ...........  1 hr.std.N.A.\2\
Bureau County...........................  ...........  1 hr.std.N.A.\2\
Calhoun County..........................  ...........  1 hr.std.N.A.\2\
Carroll County..........................  ...........  1 hr.std.N.A.\2\
Cass County.............................  ...........  1 hr.std.N.A.\2\
Champaign County........................  ...........  1 hr.std.N.A.\2\
Christian County........................  ...........  1 hr.std.N.A.\2\
Clark County............................  ...........  1 hr.std.N.A.\2\
Clay County.............................  ...........  1 hr.std.N.A.\2\
Clinton County..........................  ...........  1 hr.std.N.A.\2\
Coles County............................  ...........  1 hr.std.N.A.\2\
Crawford County.........................  ...........  1 hr.std.N.A.\2\
Cumberland County.......................  ...........  1 hr.std.N.A.\2\
De Kalb County..........................  ...........  1 hr.std.N.A.\2\
De Witt County..........................  ...........  1 hr.std.N.A.\2\
Douglas County..........................  ...........  1 hr.std.N.A.\2\
Edgar County............................  ...........  1 hr.std.N.A.\2\
Edwards County..........................  ...........  1 hr.std.N.A.\2\
Effingham County........................  ...........  1 hr.std.N.A.\2\
Fayette County..........................  ...........  1 hr.std.N.A.\2\
Ford County.............................  ...........  1 hr.std.N.A.\2\
Franklin County.........................  ...........  1 hr.std.N.A.\2\
Fulton County...........................  ...........  1 hr.std.N.A.\2\
Gallatin County.........................  ...........  1 hr.std.N.A.\2\
Greene County...........................  ...........  1 hr.std.N.A.\2\
Grundy County (part):
    All townships except Aux Sable and    ...........  1 hr.std.N.A.\2\
     Goose Lake.
Hamilton County.........................  ...........  1 hr.std.N.A.\2\
Hancock County..........................  ...........  1 hr.std.N.A.\2\
Hardin County...........................  ...........  1 hr.std.N.A.\2\
Henderson County........................  ...........  1 hr.std.N.A.\2\
Henry County............................  ...........  1 hr.std.N.A.\2\
Iroquois County.........................  ...........  1 hr.std.N.A.\2\
Jackson County..........................  ...........  1 hr.std.N.A.\2\
Jasper County...........................  ...........  1 hr.std.N.A.\2\
Jefferson County........................  ...........  1 hr.std.N.A.\2\
Jo Daviess County.......................  ...........  1 hr.std.N.A.\2\
Johnson County..........................  ...........  1 hr.std.N.A.\2\
Kankakee County.........................  ...........  1 hr.std.N.A.\2\
Kendall County (part):
    All townships except Oswego.........  ...........  1 hr.std.N.A.\2\
Knox County.............................  ...........  1 hr.std.N.A.\2\
La Salle County.........................  ...........  1 hr.std.N.A.\2\
Lawrence County.........................  ...........  1 hr.std.N.A.\2\
Lee County..............................  ...........  1 hr.std.N.A.\2\

[[Page 31042]]


Livingston County.......................  ...........  1 hr.std.N.A.\2\
Logan County............................  ...........  1 hr.std.N.A.\2\
Macon County............................  ...........  1 hr.std.N.A.\2\
Macoupin County.........................  ...........  1 hr.std.N.A.\2\
Marion County...........................  ...........  1 hr.std.N.A.\2\
Marshall County.........................  ...........  1 hr.std.N.A.\2\
Mason County............................  ...........  1 hr.std.N.A.\2\
Massac County...........................  ...........  1 hr.std.N.A.\2\
McDonough County........................  ...........  1 hr.std.N.A.\2\
McLean County...........................  ...........  1 hr.std.N.A.\2\
Menard County...........................  ...........  1 hr.std.N.A.\2\
Mercer County...........................  ...........  1 hr.std.N.A.\2\
Montgomery County.......................  ...........  1 hr.std.N.A.\2\
Morgan County...........................  ...........  1 hr.std.N.A.\2\
Moultrie County.........................  ...........  1 hr.std.N.A.\2\
Ogle County.............................  ...........  1 hr.std.N.A.\2\
Peoria County...........................  ...........  1 hr.std.N.A.\2\
Perry County............................  ...........  1 hr.std.N.A.\2\
Piatt County............................  ...........  1 hr.std.N.A.\2\
Pike County.............................  ...........  1 hr.std.N.A.\2\
Pope County.............................  ...........  1 hr.std.N.A.\2\
Pulaski County..........................  ...........  1 hr.std.N.A.\2\
Putnam County...........................  ...........  1 hr.std.N.A.\2\
Randolph County.........................  ...........  1 hr.std.N.A.\2\
Richland County.........................  ...........  1 hr.std.N.A.\2\
Rock Island County......................  ...........  1 hr.std.N.A.\2\
Saline County...........................  ...........  1 hr.std.N.A.\2\
Sangamon County.........................  ...........  1 hr.std.N.A.\2\
Schuyler County.........................  ...........  1 hr.std.N.A.\2\
Scott County............................  ...........  1 hr.std.N.A.\2\
Shelby County...........................  ...........  1 hr.std.N.A.\2\
Stark County............................  ...........  1 hr.std.N.A.\2\
Stephenson County.......................  ...........  1 hr.std.N.A.\2\
Tazewell County.........................  ...........  1 hr.std.N.A.\2\
Union County............................  ...........  1 hr.std.N.A.\2\
Vermilion County........................  ...........  1 hr.std.N.A.\2\
Wabash County...........................  ...........  1 hr.std.N.A.\2\
Warren County...........................  ...........  1 hr.std.N.A.\2\
Washington County.......................  ...........  1 hr.std.N.A.\2\
Wayne County............................  ...........  1 hr.std.N.A.\2\
White County............................  ...........  1 hr.std.N.A.\2\
Whiteside County........................  ...........  1 hr.std.N.A.\2\
Williamson County.......................  ...........  1 hr.std.N.A.\2\
Winnebago County........................  ...........  1 hr.std.N.A.\2\
Woodford County.........................  ...........  1 hr.std.N.A.\2\
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * * * *
    16. In Sec. 81.315, the table entitled ``Indiana--Ozone'' is
revised to read as follows:


Sec. 81.315  Indiana.

* * * * *

                                                            Indiana--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated Area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Chicago-Gary-Lake County Area:
    Lake County.........................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
    Porter County.......................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
Evansville Area
    Vanderburgh County..................  ...........  1 hr.std.N.A. \2\
Indianapolis Area:
    Marion County.......................  ...........  1 hr.std.N.A. \2\
La Porte County Area:
    La Porte County.....................     11/15/90  Unclassifiable/Attainment................     11/15/90
Louisville Area:

[[Page 31043]]


    Clark County........................     11/15/90  Nonattainment............................     11/15/90  Moderate.
    Floyd County........................     11/15/90  Nonattainment............................     11/15/90  Moderate.
South Bend-Elkhart Area:
    Elkhart County......................  ...........  1 hr.std.N.A. \2\
    St. Joseph County...................  ...........  1 hr.std.N.A. \2\
Warrick County Area:
    Warrick County......................     11/15/90  Unclassifiable/Attainment................     11/15/90
Allen County............................  ...........  1 hr.std.N.A. \2\
Adams County............................  ...........  1 hr.std.N.A. \2\
Bartholomew County......................  ...........  1 hr.std.N.A. \2\
Benton County...........................  ...........  1 hr.std.N.A. \2\
Blackford County........................  ...........  1 hr.std.N.A. \2\
Boone County............................  ...........  1 hr.std.N.A. \2\
Brown County............................  ...........  1 hr.std.N.A. \2\
Carroll County..........................  ...........  1 hr.std.N.A. \2\
Cass County.............................  ...........  1 hr.std.N.A. \2\
Clay County.............................  ...........  hr.std.N.A. \2\
Clinton County..........................  ...........  1 hr.std.N.A. \2\
Crawford County.........................  ...........  1 hr.std.N.A. \2\
Daviess County..........................  ...........  1 hr.std.N.A. \2\
De Kalb County..........................  ...........  1 hr.std.N.A. \2\
Dearborn County.........................  ...........  1 hr.std.N.A. \2\
Decatur County..........................  ...........  1 hr.std.N.A. \2\
Delaware County.........................  ...........  1 hr.std.N.A. \2\
Dubois County...........................  ...........  1 hr.std.N.A. \2\
Fayette County..........................  ...........  1 hr.std.N.A. \2\
Fountain County.........................  ...........  1 hr.std.N.A. \2\
Franklin County.........................  ...........  1 hr.std.N.A. \2\
Fulton County...........................  ...........  1 hr.std.N.A. \2\
Gibson County...........................  ...........  1 hr.std.N.A. \2\
Grant County............................  ...........  1 hr.std.N.A. \2\
Greene County...........................  ...........  1 hr.std.N.A. \2\
Hamilton County.........................  ...........  1 hr.std.N.A. \2\
Hancock County..........................  ...........  1 hr.std.N.A. \2\
Harrison County.........................  ...........  1 hr.std.N.A. \2\
Hendricks County........................  ...........  1 hr.std.N.A. \2\
Henry County............................  ...........  1 hr.std.N.A. \2\
Howard County...........................  ...........  1 hr.std.N.A. \2\
Huntington County.......................  ...........  1 hr.std.N.A. \2\
Jackson County..........................  ...........  1 hr.std.N.A. \2\
Jasper County...........................  ...........  1 hr.std.N.A. \2\
Jay County..............................  ...........  1 hr.std.N.A. \2\
Jefferson County........................  ...........  1 hr.std.N.A. \2\
Jennings County.........................  ...........  1 hr.std.N.A. \2\
Johnson County..........................  ...........  1 hr.std.N.A. \2\
Knox County.............................  ...........  1 hr.std.N.A. \2\
Kosciusko County........................  ...........  1 hr.std.N.A. \2\
Lagrange County.........................  ...........  1 hr.std.N.A. \2\
Lawrence County.........................  ...........  1 hr.std.N.A. \2\
Madison County..........................  ...........  1 hr.std.N.A. \2\
Marshall County.........................  ...........  1 hr.std.N.A. \2\
Martin County...........................  ...........  1 hr.std.N.A. \2\
Miami County............................  ...........  1 hr.std.N.A. \2\
Monroe County...........................  ...........  1 hr.std.N.A. \2\
Montgomery County.......................  ...........  1 hr.std.N.A. \2\
Morgan County...........................  ...........  1 hr.std.N.A. \2\
Newton County...........................  ...........  1 hr.std.N.A. \2\
Noble County............................  ...........  1 hr.std.N.A. \2\
Ohio County.............................  ...........  1 hr.std.N.A. \2\
Orange County...........................  ...........  1 hr.std.N.A. \2\
Owen County.............................  ...........  1 hr.std.N.A. \2\
Parke County............................  ...........  1 hr.std.N.A. \2\
Perry County............................  ...........  1 hr.std.N.A. \2\
Pike County.............................  ...........  1 hr.std.N.A. \2\
Posey County............................  ...........  1 hr.std.N.A. \2\
Pulaski County..........................  ...........  1 hr.std.N.A. \2\
Putnam County...........................  ...........  1 hr.std.N.A. \2\
Randolph County.........................  ...........  1 hr.std.N.A. \2\
Ripley County...........................  ...........  1 hr.std.N.A. \2\
Rush County.............................  ...........  1 hr.std.N.A. \2\

[[Page 31044]]


Scott County............................  ...........  1 hr.std.N.A. \2\
Shelby County...........................  ...........  1 hr.std.N.A. \2\
Spencer County..........................  ...........  1 hr.std.N.A. \2\
Starke County...........................  ...........  1 hr.std.N.A. \2\
Steuben County..........................  ...........  1 hr.std.N.A. \2\
Sullivan County.........................  ...........  1 hr.std.N.A. \2\
Switzerland County......................  ...........  1 hr.std.N.A. \2\
Tippecanoe County.......................  ...........  1 hr.std.N.A. \2\
Tipton County...........................  ...........  1 hr.std.N.A. \2\
Union County............................  ...........  1 hr.std.N.A. \2\
Vermillion County.......................  ...........  1 hr.std.N.A. \2\
Vigo County.............................  ...........  1 hr.std.N.A. \2\
Wabash County...........................  ...........  1 hr.std.N.A. \2\
Warren County...........................  ...........  1 hr.std.N.A. \2\
Washington County.......................  ...........  1 hr.std.N.A. \2\
Wayne County............................  ...........  1 hr.std.N.A. \2\
Wells County............................  ...........  1 hr.std.N.A. \2\
White County............................  ...........  1 hr.std.N.A. \2\
Whitley County..........................  ...........  1 hr.std.N.A. \2\
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    17. In Sec. 81.316, the table entitled ``Iowa--Ozone'' is revised
to read as follows:


Sec. 81.316  Iowa.

* * * * *

                                                              Iowa--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Statewide...............................  ...........  1 hr.std.N.A. \2\
    Adair County
    Adams County
    Allamakee County
    Appanoose County
    Audubon County
    Benton County
    Black Hawk County
    Boone County
    Bremer County
    Buchanan County
    Buena Vista County
    Butler County
    Calhoun County
    Carroll County
    Cass County
    Cedar County
    Cerro Gordo County
    Cherokee County
    Chickasaw County
    Clarke County
    Clay County
    Clayton County
    Clinton County
    Crawford County
    Dallas County
    Davis County
    Decatur County
    Delaware County
    Des Moines County
    Dickinson County
    Dubuque County
    Emmet County
    Fayette County
    Floyd County
    Franklin County

[[Page 31045]]


    Fremont County
    Greene County
    Grundy County
    Guthrie County
    Hamilton County
    Hancock County
    Hardin County
    Harrison County
    Henry County
    Howard County
    Humboldt County
    Ida County
    Iowa County
    Jackson County
    Jasper County
    Jefferson County
    Johnson County
    Jones County
    Keokuk County
    Kossuth County
    Lee County
    Linn County
    Louisa County
    Lucas County
    Lyon County
    Madison County
    Mahaska County
    Marion County
    Marshall County
    Mills County
    Mitchell County
    Monona County
    Monroe County
    Montgomery County
    Muscatine County
    O'Brien County
    Osceola County
    Page County
    Palo Alto County
    Plymouth County
    Pocahontas County
    Polk County
    Pottawattamie County
    Poweshiek County
    Ringgold County
    Sac County
    Scott County
    Shelby County
    Sioux County
    Story County
    Tama County
    Taylor County
    Union County
    Van Buren County
    Wapello County
    Warren County
    Washington County
    Wayne County
    Webster County
    Winnebago County
    Winneshiek County
    Woodbury County
    Worth County
    Wright County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    18. In Sec. 81.317, the table entitled ``Kansas--Ozone'' is revised
to read as follows:

[[Page 31046]]

Sec. 81.317  Kansas.

* * * * *

                                                             Kansas-Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Kansas City Area:
    Johnson County......................      7/23/92  Attainment
    Wyandotte County....................      7/23/92  Attainment
Allen County............................      7/23/92  1hr.std.N.A.\2\
Anderson County.........................      7/23/92  1 hr.std.N.A.\2\
Atchison County.........................      7/23/92  1 hr.std.N.A.\2\
Barber County...........................      7/23/92  1 hr.std.N.A.\2\
Barton County...........................      7/23/92  1 hr.std.N.A.\2\
Bourbon County..........................      7/23/92  1 hr.std.N.A.\2\
Brown County............................      7/23/92  1 hr.std.N.A.\2\
Butler County...........................      7/23/92  1 hr.std.N.A.\2\
Chase County............................      7/23/92  1 hr.std.N.A.\2\
Chautauqua County.......................      7/23/92  1 hr.std.N.A.\2\
Cherokee County.........................      7/23/92  1 hr.std.N.A.\2\
Cheyenne County.........................      7/23/92  1 hr.std.N.A.\2\
Clark County............................      7/23/92  1 hr.std.N.A.\2\
Clay County.............................      7/23/92  1 hr.std.N.A.\2\
Cloud County............................      7/23/92  1 hr.std.N.A.\2\
Coffey County...........................      7/23/92  1 hr.std.N.A.\2\
Comanche County.........................      7/23/92  1 hr.std.N.A.\2\
Cowley County...........................      7/23/92  1 hr.std.N.A.\2\
Crawford County.........................      7/23/92  1 hr.std.N.A.\2\
Decatur County..........................      7/23/92  1 hr.std.N.A.\2\
Dickinson County........................      7/23/92  1 hr.std.N.A.\2\
Doniphan County.........................      7/23/92  1 hr.std.N.A.\2\
Douglas County..........................      7/23/92  1 hr.std.N.A.\2\
Edwards County..........................      7/23/92  1 hr.std.N.A.\2\
Elk County..............................      7/23/92  1 hr.std.N.A.\2\
Ellis County............................      7/23/92  1 hr.std.N.A.\2\
Ellsworth County........................      7/23/92  1 hr.std.N.A.\2\
Finney County...........................      7/23/92  1 hr.std.N.A.\2\
Ford County.............................      7/23/92  1 hr.std.N.A.\2\
Franklin County.........................      7/23/92  1 hr.std.N.A.\2\
Geary County............................      7/23/92  1 hr.std.N.A.\2\
Gove County.............................     7/23/92.  1 hr.std.N.A.\2\
Graham County...........................      7/23/92  1 hr.std.N.A.\2\
Grant County............................      7/23/92  1 hr.std.N.A.\2\
Gray County.............................      7/23/92  1 hr.std.N.A.\2\
Greeley County..........................      7/23/92  1 hr.std.N.A.\2\
Greenwood County........................      7/23/92  1 hr.std.N.A.\2\
Hamilton County.........................      7/23/92  1 hr.std.N.A.\2\
Harper County...........................      7/23/92  1 hr.std.N.A.\2\
Harvey County...........................      7/23/92  1 hr.std.N.A.\2\
Haskell County..........................      7/23/92  1 hr.std.N.A.\2\
Hodgeman County.........................      7/23/92  1 hr.std.N.A.\2\
Jackson County..........................      7/23/92  1 hr.std.N.A.\2\
Jefferson County........................      7/23/92  1 hr.std.N.A.\2\
Jewell County...........................      7/23/92  1 hr.std.N.A.\2\
Kearny County...........................      7/23/92  1 hr.std.N.A.\2\
Kingman County..........................      7/23/92  1 hr.std.N.A.\2\
Kiowa County............................      7/23/92  1 hr.std.N.A.\2\
Labette County..........................      7/23/92  1 hr.std.N.A.\2\
Lane County.............................     7/23/92.  1 hr.std.N.A.\2\
Leavenworth County......................      7/23/92  1 hr.std.N.A.\2\
Lincoln County..........................      7/23/92  1 hr.std.N.A.\2\
Linn County.............................      7/23/92  1 hr.std.N.A.\2\
Logan County............................      7/23/92  1 hr.std.N.A.\2\
Lyon County.............................      7/23/92  1 hr.std.N.A.\2\
Marion County...........................      7/23/92  1 hr.std.N.A.\2\
Marshall County.........................      7/23/92  1 hr.std.N.A.\2\
McPherson County........................      7/23/92  1 hr.std.N.A.\2\
Meade County............................      7/23/92  1 hr.std.N.A.\2\
Miami County............................      7/23/92  1 hr.std.N.A.\2\
Mitchell County.........................      7/23/92  1 hr.std.N.A.\2\
Montgomery County.......................      7/23/92  1 hr.std.N.A.\2\
Morris County...........................      7/23/92  1 hr.std.N.A.\2\
Morton County...........................      7/23/92  1 hr.std.N.A.\2\

[[Page 31047]]


Nemaha County...........................      7/23/92  1 hr.std.N.A.\2\
Neosho County...........................      7/23/92  1 hr.std.N.A.\2\
Ness County.............................      7/23/92  1 hr.std.N.A.\2\
Norton County...........................      7/23/92  1 hr.std.N.A.\2\
Osage County............................      7/23/92  1 hr.std.N.A.\2\
Osborne County..........................      7/23/92  1 hr.std.N.A.\2\
Ottawa County...........................      7/23/92  1 hr.std.N.A.\2\
Pawnee County...........................      7/23/92  1 hr.std.N.A.\2\
Phillips County.........................      7/23/92  1 hr.std.N.A.\2\
Pottawatomie County.....................      7/23/92  1 hr.std.N.A.\2\
Pratt County............................      7/23/92  1 hr.std.N.A.\2\
Rawlins County..........................      7/23/92  1 hr.std.N.A.\2\
Reno County.............................      7/23/92  1 hr.std.N.A.\2\
Republic County.........................      7/23/92  1 hr.std.N.A.\2\
Rice County.............................      7/23/92  1 hr.std.N.A.\2\
Riley County............................      7/23/92  1 hr.std.N.A.\2\
Rooks County............................      7/23/92  1 hr.std.N.A.\2\
Rush County.............................      7/23/92  1 hr.std.N.A.\2\
Russell County..........................      7/23/92  1 hr.std.N.A.\2\
Saline County...........................      7/23/92  1 hr.std.N.A.\2\
Scott County............................      7/23/92  1 hr.std.N.A.\2\
Sedgwick County.........................      7/23/92  1 hr.std.N.A.\2\
Seward County...........................      7/23/92  1 hr.std.N.A.\2\
Shawnee County..........................      7/23/92  1 hr.std.N.A.\2\
Sheridan County.........................      7/23/92  1 hr.std.N.A.\2\
Sherman County..........................      7/23/92  1 hr.std.N.A.\2\
Smith County............................      7/23/92  1 hr.std.N.A.\2\
Stafford County.........................      7/23/92  1 hr.std.N.A.\2\
Stanton County..........................      7/23/92  1 hr.std.N.A.\2\
Stevens County..........................      7/23/92  1 hr.std.N.A.\2\
Sumner County...........................      7/23/92  1 hr.std.N.A.\2\
Thomas County...........................      7/23/92  1 hr.std.N.A.\2\
Trego County............................      7/23/92  1 hr.std.N.A.\2\
Wabaunsee County........................      7/23/92  1 hr.std.N.A.\2\
Wallace County..........................      7/23/92  1 hr.std.N.A.\2\
Washington County.......................      7/23/92  1 hr.std.N.A.\2\
Wichita County..........................      7/23/92  1 hr.std.N.A.\2\
Wilson County...........................      7/23/92  1 hr.std.N.A.\2\
Woodson County..........................      7/23/92  1 hr.std.N.A.\2\
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * * * *
    19. In Sec. 81.318, the table entitled ``Kentucky-Ozone'' is
revised to read as follows:


Sec. 81.318  Kentucky.

* * * * * * *

                                                            Kentucky--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Cincinnati-Hamilton Area:
    Boone County........................     11/15/90  Nonattainment............................     11/15/90  Moderate.
    Campbell County.....................     11/15/90  Nonattainment............................     11/15/90  Moderate.
    Kenton County.......................     11/15/90  Nonattainment............................     11/15/90  Moderate.
Edmonson County Area:
    Edmonson County.....................  ...........  x1 hr.std.N.A.\2\........................
Louisville Area:
    Bullitt County (part)...............     11/15/90  Nonattainment............................     11/15/90  Moderate.

[[Page 31048]]


        The area boundary is as follows:
         Beginning at the intersection
         of Ky 1020 and the Jefferson-
         Bullitt County Line proceeding
         to the east along the county
         line to the intersection of
         county road 567 and the
         Jefferson-Bullitt County Line;
         proceeding south on county road
         567 to the junction with Ky
         1116 (also known as Zoneton
         Road); proceeding to the south
         on Ky 1116 to the junction with
         Hebron Lane; proceeding to the
         south on Hebron Lane to Cedar
         Creek; proceeding south on
         Cedar Creek to the confluence
         of Floyds Fork turning
         southeast along a creek that
         meets Ky 44 at Stallings
         Cemetery; proceeding west along
         Ky 44 to the eastern most point
         in the Shepherdsville city
         limits; proceeding south along
         the Shepherdsville city limits
         to the Salt River and west to a
         point across the river from
         Mooney Lane; proceeding south
         along Mooney Lane to the
         junction of Ky 480; proceeding
         west on Ky 480 to the junction
         with Ky 2237; proceeding south
         on Ky 2237 to the junction with
         Ky 61 and proceeding north on
         Ky 61 to the junction with Ky
         1494; proceeding south on Ky
         1494 to the junction with the
         perimeter of the Fort Knox
         Military Reservation;
         proceeding north along the
         military reservation perimeter
         to Castleman Branch Road;
         proceeding north on Castleman
         Branch Road to Ky 44;
         proceeding a very short
         distance west on Ky 44 to a
         junction with Ky 2723;
         proceeding north on Ky 2723 to
         the junction of Chillicoop
         Road; proceeding northeast on
         Chillicoop Road to the junction
         of Ky 2673; proceeding north on
         Ky 2673 to the junction of Ky
         1020; proceeding north on Ky
         1020 to the beginning; unless a
         road or intersection of two or
         more roads defines the
         nonattainment boundary, the
         area shall extend outward 750
         feet from the center of the
         road or intersection
    Jefferson County....................     11/15/90  Nonattainment............................     11/15/90  Moderate.
    Oldham County (part)................     11/15/90  Nonattainment............................     11/15/90  Moderate.

[[Page 31049]]


        The area boundary is as follows:
         Beginning at the intersection
         of the Oldham-Jefferson County
         Line with the southbound lane
         of Interstate 71; proceeding to
         the northeast along the
         southbound lane of Interstate
         71 to the intersection of Ky
         329 and the southbound lane of
         Interstate 71; proceeding to
         the northwest on Ky 329 to the
         intersection of Zaring Road and
         Ky 329; proceeding to the east-
         northeast on Zaring Road to the
         junction of Cedar Point Road
         and Zaring Road; proceeding to
         the north-northeast on Cedar
         Point Road to the junction of
         Ky 393 and Cedar Point Road;
         proceeding to the south-
         southeast on Ky 393 to the
         junction of (the access road on
         the north side of Reformatory
         Lake and the Reformatory);
         proceeding to the east-
         northeast on the access road to
         the junction with Dawkins Lane
         and the access road; proceeding
         to follow an electric power
         line east-northeast across from
         the junction of county road 746
         and Dawkins Lane to the east-
         northeast across Ky 53 on to
         the La Grange Water Filtration
         Plant; proceeding on to the
         east-southeast along the power
         line then south across Fort
         Pickens Road to a power
         substation on Ky 146;
         proceeding along the power line
         south across Ky 146 and the
         Seaboard System Railroad track
         to adjoin the incorporated city
         limits of La Grange; then
         proceeding east then south
         along the La Grange city limits
         to a point abutting the north
         side of Ky 712; proceeding east-
         southeast on Ky 712 to the
         junction of Massie School Road
         and Ky 712; proceeding to the
         south-southwest on Massie
         School Road to the intersection
         of Massie School Road and Zale
         Smith Road; proceeding
         northeast on Zale Smith Road to
         the junction of Ky 53 and Zale
         Smith Road; proceeding on Ky 53
         to the northnorthwest to the
         junction of New Moody Lane and
         Ky 53; proceeding on New Moody
         Lane to the south-southwest
         until meeting the city limits
         of La Grange; then briefly
         proceeding north following the
         La Grange city limits to the
         intersection of the northbound
         lane of Interstate 71 and the
         La Grange city limits;
         proceeding southwest on the
         north-bound lane of Interstate
         71 until inter-secting with the
         North Fork of Currys Fork;
         proceeding south-southwest
         beyond the confluence of Currys
         Fork to the south-southwest
         beyond the confluence of Floyds
         Fork continuing on to the
         Oldham-Jefferson County Line;
         proceeding northwest along the
         Oldham-Jefferson County Line to
         the beginning; unless a road or
         intersection of two or more
         roads defines the nonattainment
         boundary, the area shall extend
         outward 750 feet from the
         center of the road or
         intersection
Owensboro Area:
    Daviess County......................  ...........  1 hr.std.N.A.\2\
    Hancock County......................  ...........  1 hr.std.N.A.\2\
        The area boundary is as follows:
         Beginning at the Intersection
         of U.S. 60 and the Hancock-
         Daviess County Line; proceeding
         east along U.S. 60 to the
         intersection of Yellow Creek
         and U.S. 60; proceeding north
         and west along Yellow Creek to
         the confluence of the Ohio
         River; proceeding west along
         the Ohio River to the
         confluence of Blackford Creek;
         proceeding south and east along
         Blackford Creek to the
         beginning
Morgan County Area:
    Morgan County.......................     11/15/90  Unclassifiable/Attainment................     11/15/90

[[Page 31050]]


Adair County............................  ...........  1 hr.std.N.A.\2\
Allen County............................  ...........  1 hr.std.N.A.\2\
Anderson County.........................  ...........  1 hr.std.N.A.\2\
Ballard County..........................  ...........  1 hr.std.N.A.\2\
Barren County...........................  ...........  1 hr.std.N.A.\2\
Bath County.............................  ...........  1 hr.std.N.A.\2\
Bell County.............................  ...........  1 hr.std.N.A.\2\
Bourbon County..........................  ...........  1 hr.std.N.A.\2\
Boyd County.............................  ...........  1 hr.std.N.A.\2\
Boyle County............................  ...........  1 hr.std.N.A.\2\
Bracken County..........................  ...........  1 hr.std.N.A.\2\
Breathitt County........................  ...........  1 hr.std.N.A.\2\
Breckinridge County.....................  ...........  1 hr.std.N.A.\2\
Bullitt County (part):
    Remainder of County.................  ...........  1 hr.std.N.A.\2\
Butler County...........................  ...........  1 hr.std.N.A.\2\
Caldwell County.........................  ...........  1 hr.std.N.A.\2\
Calloway County.........................  ...........  1 hr.std.N.A.\2\
Carlisle County.........................  ...........  1 hr.std.N.A.\2\
Carroll County..........................  ...........  1 hr.std.N.A.\2\
Carter County...........................  ...........  1 hr.std.N.A.\2\
Casey County............................  ...........  1 hr.std.N.A.\2\
Christian County........................  ...........  1 hr.std.N.A.\2\
Clark County............................  ...........  1 hr.std.N.A.\2\
Clay County.............................  ...........  1 hr.std.N.A.\2\
Clinton County..........................  ...........  1 hr.std.N.A.\2\
Crittenden County.......................  ...........  1 hr.std.N.A.\2\
Cumberland County.......................  ...........  1 hr.std.N.A.\2\
Elliott County..........................  ...........  1 hr.std.N.A.\2\
Estill County...........................  ...........  1 hr.std.N.A.\2\
Fayette County..........................  ...........  1 hr.std.N.A.\2\
Fleming County..........................  ...........  1 hr.std.N.A.\2\
Floyd County............................  ...........  1 hr.std.N.A.\2\
Franklin County.........................  ...........  1 hr.std.N.A.\2\
Fulton County...........................  ...........  1 hr.std.N.A.\2\
Gallatin County.........................  ...........  1 hr.std.N.A.\2\
    Garrard County......................  ...........  1 hr.std.N.A.\2\
    Grant County........................  ...........  1 hr.std.N.A.\2\
    Graves County.......................  ...........  1 hr.std.N.A.\2\
    Grayson County......................  ...........  1 hr.std.N.A.\2\
    Green County........................  ...........  1 hr.std.N.A.\2\
    Greenup County......................  ...........  1 hr.std.N.A.\2\
Hancock County (part):
    Remainder of County.................  ...........  1 hr.std.N.A.\2\
Hardin County...........................  ...........  1 hr.std.N.A.\2\
Harlan County...........................  ...........  1 hr.std.N.A.\2\
Harrison County.........................  ...........  1 hr.std.N.A.\2\
Hart County.............................  ...........  1 hr.std.N.A.\2\
Henderson County........................  ...........  1 hr.std.N.A.\2\
Henry County............................  ...........  1 hr.std.N.A.\2\
Hickman County..........................  ...........  1 hr.std.N.A.\2\
Hopkins County..........................  ...........  1 hr.std.N.A.\2\
Jackson County..........................  ...........  1 hr.std.N.A.\2\
Jessamine County........................  ...........  1 hr.std.N.A.\2\
Johnson County..........................  ...........  1 hr.std.N.A.\2\
Knott County............................  ...........  1 hr.std.N.A.\2\
Knox County.............................  ...........  1 hr.std.N.A.\2\
Larue County............................  ...........  1 hr.std.N.A.\2\
Laurel County...........................  ...........  1 hr.std.N.A.\2\
Lawrence County.........................  ...........  1 hr.std.N.A.\2\
Lee County..............................  ...........  1 hr.std.N.A.\2\
Leslie County...........................  ...........  1 hr.std.N.A.\2\
Letcher County..........................  ...........  1 hr.std.N.A.\2\
Lewis County............................  ...........  1 hr.std.N.A.\2\
Lincoln County..........................  ...........  1 hr.std.N.A.\2\
Livingston County.......................  ...........  1 hr.std.N.A.\2\
Logan County............................  ...........  1 hr.std.N.A.\2\
Lyon County.............................  ...........  1 hr.std.N.A.\2\
Madison County..........................  ...........  1 hr.std.N.A.\2\
Magoffin County.........................  ...........  1 hr.std.N.A.\2\

[[Page 31051]]


Marion County...........................  ...........  1 hr.std.N.A.\2\
Marshall County.........................  ...........  1 hr.std.N.A.\2\
Martin County...........................  ...........  1 hr.std.N.A.\2\
Mason County............................  ...........  1 hr.std.N.A.\2\
McCracken County........................  ...........  1 hr.std.N.A.\2\
McCreary County.........................  ...........  1 hr.std.N.A.\2\
McLean County...........................  ...........  1 hr.std.N.A.\2\
Meade County............................  ...........  1 hr.std.N.A.\2\
Menifee County..........................  ...........  1 hr.std.N.A.\2\
Mercer County...........................  ...........  1 hr.std.N.A.\2\
Metcalfe County.........................  ...........  1 hr.std.N.A.\2\
Monroe County...........................  ...........  1 hr.std.N.A.\2\
Montgomery County.......................  ...........  1 hr.std.N.A.\2\
Muhlenberg County.......................  ...........  1 hr.std.N.A.\2\
Nelson County...........................  ...........  1 hr.std.N.A.\2\
Nicholas County.........................  ...........  1 hr.std.N.A.\2\
Ohio County.............................  ...........  1 hr.std.N.A.\2\
Oldham County (part):
    Remainder of County.................  ...........  1 hr.std.N.A.\2\
Owen County.............................  ...........  1 hr.std.N.A.\2\
Owsley County...........................  ...........  1 hr.std.N.A.\2\
Pendleton County........................  ...........  1 hr.std.N.A.\2\
Perry County............................  ...........  1 hr.std.N.A.\2\
Pike County.............................  ...........  1 hr.std.N.A.\2\
Powell County...........................  ...........  1 hr.std.N.A.\2\
Pulaski County..........................  ...........  1 hr.std.N.A.\2\
Robertson County........................  ...........  1 hr.std.N.A.\2\
Rockcastle County.......................  ...........  1 hr.std.N.A.\2\
Rowan County............................  ...........  1 hr.std.N.A.\2\
Russell County..........................  ...........  1 hr.std.N.A.\2\
Scott County............................  ...........  1 hr.std.N.A.\2\
Shelby County...........................  ...........  1 hr.std.N.A.\2\
Simpson County..........................  ...........  1 hr.std.N.A.\2\
Spencer County..........................  ...........  1 hr.std.N.A.\2\
Taylor County...........................  ...........  1 hr.std.N.A.\2\
Todd County.............................  ...........  1 hr.std.N.A.\2\
Trigg County............................  ...........  1 hr.std.N.A.\2\
Trimble County..........................  ...........  1 hr.std.N.A.\2\
Union County............................  ...........  1 hr.std.N.A.\2\
Warren County...........................  ...........  1 hr.std.N.A.\2\
Washington County.......................  ...........  1 hr.std.N.A.\2\
Wayne County............................  ...........  1 hr.std.N.A.\2\
Webster County..........................  ...........  1 hr.std.N.A.\2\
Whitley County..........................  ...........  1 hr.std.N.A.\2\
Wolfe County............................  ...........  1 hr.std.N.A.\2\
Woodford County.........................  ...........  1 hr.std.N.A.\2\
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    20. In Sec. 81.319, the table entitled ``Louisiana-Ozone'' is
revised to read as follows:


Sec. 81.319  Louisiana.

* * * * *

                                                            Louisiana-Ozone (1-hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Baton Rouge Area:
    Ascension Parish....................     11/15/90  Nonattainment............................     11/15/90  Serious.
    East Baton Rouge Parish.............     11/15/90  Nonattainment............................     11/15/90  Serious.
    Iberville Parish....................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Livingston Parish...................     11/15/90  Nonattainment............................     11/15/90  Serious.
    West Baton Rouge Parish.............     11/15/90  Nonattainment............................     11/15/90  Serious.
Beauregard Parish Area:
    Beauregard Parish...................  ...........   1 hr.std.N.A. \2\
Grant Parish Area:

[[Page 31052]]


    Grant Parish........................  ...........  1 hr.std.N.A. \2\
Lafayette Area:
    Lafayette Parish....................  ...........  1 hr.std.N.A. \2\
Lafourche Parish Area:
    Lafourche Parish....................      1/05/98  Nonattainment............................      1/05/98  Incomplete Data.
Lake Charles Area:
    Calcasieu Parish....................  ...........  1 hr.std.N.A. \2\
New Orleans Area:
    Jefferson Parish....................  ...........  1 hr.std.N.A. \2\
    Orleans Parish......................  ...........  1 hr.std.N.A. \2\
    St. Bernard Parish..................  ...........  1 hr.std.N.A. \2\
    St. Charles Parish..................  ...........  1 hr.std.N.A. \2\
Pointe Coupee Area:
    Pointe Coupee Parish................  ...........  1 hr.std.N.A. \2\
St. James Parish Area:
    St. James Parish....................  ...........  1 hr.std.N.A. \2\
St. Mary Parish Area:
    St. Mary Parish.....................  ...........  1 hr.std.N.A. \2\
AQCR 019 Monroe-El Dorado Interstate....  ...........  1 hr.std.N.A. \2\
    Caldwell Parish
    Catahoula Parish
    Concordia Parish
    East Carroll Parish
    Franklin Parish
    La Salle Parish
    Madison Parish
    Morehouse Parish
    Ouachita Parish
    Richland Parish
    Tensas Parish
    Union Parish
    West Carroll Parish
AQCR 022 Shreveport-Texarkana-Tyler       ...........  1 hr.std.N.A. \2\
 Inters..
    Bienville Parish
    Bossier Parish
    Caddo Parish
    Claiborne Parish
    De Soto Parish
    Jackson Parish
    Lincoln Parish
    Natchitoches Parish
    Red River Parish
    Sabine Parish
    Webster Parish
    Winn Parish
AQCR 106 S. Louisiana-S.E. Texas          ...........  1 hr.std.N.A. \2\
 Interstate.
    St. John The Baptist Parish.........
AQCR 106 S. Louisiana-S.E. Texas          ...........   1 hr.std.N.A. \2\
 Interstate.
    Acadia Parish
    Allen Parish
    Assumption Parish
    Avoyelles Parish
    Cameron Parish
    East Feliciana Parish
    Evangeline Parish
    Iberia Parish
    Jefferson Davis Parish
    Plaquemines Parish
    Rapides Parish
    St. Helena Parish
    St. Landry Parish
    St. Martin Parish
    St. Tammany Parish
    Tangipahoa Parish
    Terrebonne Parish
    Vermilion Parish
    Vernon Parish
    Washington Parish
    West Feliciana Parish
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.

[[Page 31053]]


\2\ 1 hour standard Not Applicable.

* * * * *
    21. In Sec. 81.320, the table entitled ``Maine-Ozone'' is revised
to read as follows:


Sec. 81.320  Maine.

* * * * *

                                                              Maine-Ozone (1-hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Franklin County Area:
    Franklin County (part)..............  ...........  1 hr.std.N.A. \3\
Hancock County and Waldo County Area:
    Hancock County......................  ...........  1 hr.std.N.A. \3\
    Waldo County........................  ...........  1 hr.std.N.A. \3\
Knox County and Lincoln County Area:
    Knox County.........................  ...........  1 hr.std.N.A.
    Lincoln County......................  ...........  1 hr.std.N.A. \3\
Lewiston-Auburn Area:
    Androscoggin County.................  ...........  1 hr.std.N.A.. \3\
    Kennebec County.....................  ...........  1 hr.std.N.A. \3\
Oxford County Area:
    Oxford County (part)................  ...........  1 hr.std.N.A. \3\
Portland Area:
    Cumberland County...................     11/15/90  Nonattainment............................     11/15/90  Moderate. \2\
    Sagadahoc County....................     11/15/90  Nonattainment............................     11/15/90  Moderate. \2\
    York County.........................     11/15/90  Nonattainment............................     11/15/90  Moderate. \2\
Somerset County Area:
    Somerset County (part)..............  ...........  1 hr.std.N.A. \3\
AQCR 108 Aroostook Intrastate...........  ...........  1 hr.std.N.A. \3\
    Aroostook County (part) see 40 CFR
     81.179
AQCR 109 Down East Intrastate...........  ...........  1 hr.std.N.A. \3\
    Penobscot County (part), as
     described under 40 CFR 81.181.
    Piscataquis County (part) see 40 CFR
     81.181
    Washington County
AQCR 111 Northwest Maine Intrastate.....  ...........  1 hr.std.N.A. \3\
    (Remainder of) see 40 CFR 81.182
        Aroostook County
        Franklin County (part)
        Oxford County (part)
        Penobscot County (part)
        Piscataquis County (part)
        Somerset County (part)
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ Attainment date extended to November 15, 1997.
\3\ 1 hour standard Not Applicable.

* * * * *
    22. In Sec. 81.321, the table entitled ``Maryland-Ozone'' is
revised to read as follows:


Sec. 81.321  Maryland.

* * * * *

                                                            Maryland--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Baltimore Area:
    Anne Arundel County.................     11/15/90  Nonattainment............................     11/15/90  Severe-15.
    City of Baltimore...................     11/15/90  Nonattainment............................     11/15/90  Severe-15.
    Baltimore County....................     11/15/90  Nonattainment............................     11/15/90  Severe-15.
    Carroll County......................     11/15/90  Nonattainment............................     11/15/90  Severe-15.
    Harford County......................     11/15/90  Nonattainment............................     11/15/90  Severe-15.
    Howard County.......................     11/15/90  Nonattainment............................     11/15/90  Severe-15.
Kent County and Queen Anne's County
 Area:
    Kent County.........................       1/6/92  Nonattainment............................       1/6/92  Marginal.
    Queen Anne's County.................       1/6/92  Nonattainment............................       1/6/92  Marginal.
Philadelphia-Wilmington-Trenton Area:
    Cecil County........................     11/15/90  Nonattainment............................     11/15/90  Severe-15.

[[Page 31054]]


Washington, DC Area:
    Calvert County......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Charles County......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Frederick County....................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Montgomery County...................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Prince George's County..............     11/15/90  Nonattainment............................     11/15/90  Serious.
AQCR 113 Cumberland-Keyser Interstate...  ...........  1 hr.std.N.A. \2\
    Allegany County
    Garrett County
    Washington County
AQCR 114 Eastern Shore Interstate         ...........  1 hr.std.N.A. \2\
 (Remainder of).
    Caroline County
    Dorchester County
    Somerset County
    Talbot County
    Wicomico County
    Worcester County
AQCR 116 Southern Maryland Intrastate     ...........  1 hr.std.N.A. \2\
 (Remainder of).
    St. Mary's County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    23. In Sec. 81.322, the table entitled ``Massachusetts--Ozone'' is
revised to read as follows:


Sec. 81.322  Massachusetts.

* * * * *

                                                         Massachusetts--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Boston-Lawrence-Worcester (E. Mass)
 Area:
    Barnstable County...................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Bristol County......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Dukes County........................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Essex County........................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Middlesex County....................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Nantucket County....................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Norfolk County......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Plymouth County.....................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Suffolk County......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Worcester County....................     11/15/90  Nonattainment............................     11/15/90  Serious.
Springfield (W. Mass) Area:
    Berkshire County....................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Franklin County.....................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Hampden County......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Hampshire County....................     11/15/90  Nonattainment............................     11/15/90  Serious.
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.

* * * * *
    24. In Sec. 81.323, the table entitled ``Michigan--Ozone'' is
revised to read as follows:


Sec. 81.323  Michigan.

* * * * *

                                                            Michigan--Ozone (1-hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Allegan County Area:
    Allegan County......................     11/15/90  Nonattainment............................     11/15/90  Incomplete Data.
Barry County Area:
    Barry County........................  ...........  1 hr.std.N.A. \2\
Battle Creek Area:

[[Page 31055]]


    Calhoun County......................  ...........  1 hr.std.N.A. \2\
Benton Harbor Area:
    Berrien County......................  ...........  1 hr.std.N.A. \2\
Branch County Area:
    Branch County.......................  ...........  1 hr.std.N.A. \2\
Cass County Area:
    Cass County.........................  ...........  1 hr.std.N.A. \2\
Detroit-Ann Arbor Area:
    Livingston County...................       4/6/95  Attainment...............................
    Macomb County.......................       4/6/95  Attainment...............................
    Monroe County.......................       4/6/95  Attainment...............................
    Oakland County......................       4/6/95  Attainment...............................
    St. Clair County....................       4/6/95  Attainment...............................
    Washtenaw County....................       4/6/95  Attainment...............................
    Wayne County........................       4/6/95  Attainment...............................
Flint Area:
    Genesee County......................  ...........  1 hr.std.N.A. \2\
Grand Rapids Area:
    Kent County.........................      6/21/96  Attainment...............................
    Ottawa County.......................      6/21/96  Attainment...............................
Gratiot County Area:
    Gratiot County......................  ...........  1 hr.std.N.A. \2\
Hillsdale County Area:
    Hillsdale County....................  ...........  1 hr.std.N.A. \2\
Huron County Area:
    Huron County........................  ...........  1 hr.std.N.A. \2\
Ionia County Area:
    Ionia County........................  ...........  1 hr.std.N.A. \2\
Jackson Area:
    Jackson County......................  ...........  1 hr.std.N.A. \2\
Kalamazoo Area:
    Kalamazoo County....................  ...........  1 hr.std.N.A. \2\
Lansing-East Lansing Area:
    Clinton County......................  ...........  1 hr.std.N.A. \2\
    Eaton County........................  ...........  1 hr.std.N.A. \2\
    Ingham County.......................  ...........  1 hr.std.N.A. \2\
Lapeer County Area:
    Lapeer County.......................  ...........  1 hr.std.N.A. \2\
Lenawee County Area:
    Lenawee County......................  ...........  1 hr.std.N.A. \2\
Mason County Area:
    Mason County........................     11/15/90  Unclassifiable/Attainment................     11/15/90
Montcalm Area:
    Montcalm County.....................  ...........  1 hr.std.N.A. \2\
Muskegon Area:
    Muskegon County.....................     11/15/90  Nonattainment............................     11/15/90  Moderate.
Oceana County Area:
    Oceana County.......................     11/15/90  Unclassifiable/Attainment................     11/15/90
Saginaw-Bay City-Midland Area:
    Bay County..........................  ...........  1 hr.std.N.A. \2\
    Midland County......................  ...........  1 hr.std.N.A. \2\
    Saginaw County......................  ...........  1 hr.std.N.A. \2\
Sanilac County Area:
    Sanilac County......................  ...........  1 hr.std.N.A. \2\
Shiawassee County Area:
    Shiawassee County...................  ...........  1 hr.std.N.A. \2\
St. Joseph County Area:
    St. Joseph County...................  ...........  1 hr.std.N.A. \2\
Tuscola County Area:
    Tuscola County......................  ...........  1 hr.std.N.A. \2\
Van Buren County Area:
    Van Buren County....................  ...........  1 hr.std.N.A. \2\
AQCR 122 Central Michigan Intrastate      ...........  1 hr.std.N.A. \2\
 (Remainder of).
    Arenac County
    Clare County
    Gladwin County
    Iosco County
    Isabella County
    Lake County
    Mecosta County

[[Page 31056]]


    Newaygo County
    Ogemaw County
    Osceola County
    Roscommon County
    AQCR 126 Upper Michigan Intrastate
     (part)
    Marquette County                      ...........  1 hr.std.N.A. \2\
    AQCR 126 Upper Michigan Intrastate
    (Remainder of)                        ...........  1 hr.std.N.A. \2\
    Alcona County
    Alger County
    Alpena County
    Antrim County
    Baraga County
    Benzie County
    Charlevoix County
    Cheboygan County
    Chippewa County
    Crawford County
    Delta County
    Dickinson County
    Emmet County
    Gogebic County
    Grand Traverse County
    Houghton County
    Iron County
    Kalkaska County
    Keweenaw County
    Leelanau County
    Luce County
    Mackinac County
    Manistee County
    Menominee County
    Missaukee County
    Montmorency County
    Ontonagon County
    Oscoda County
    Otsego County
    Presque Isle County
    Schoolcraft County
    Wexford County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    25. In Sec. 81.324, the table entitled ``Minnesota--Ozone'' is
revised to read as follows:


Sec. 81.324  Minnesota.

* * * * *

                                                           Minnesota--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Minneapolis-Saint Paul Area:
    Anoka County........................  ...........  1 hr.std.N.A.\2\
    Carver County.......................  ...........  1 hr.std.N.A.\2\
    Dakota County.......................  ...........  1 hr.std.N.A.\2\
    Hennepin County.....................  ...........  1 hr.std.N.A.\2\
    Ramsey County.......................  ...........  1 hr.std.N.A.\2\
    Scott County........................  ...........  1 hr.std.N.A.\2\
    Washington County...................  ...........  1 hr.std.N.A.\2\
Aitkin County...........................  ...........  1 hr.std.N.A.\2\
Becker County...........................  ...........  1 hr.std.N.A.\2\
Beltrami County.........................  ...........  1 hr.std.N.A.\2\
Benton County...........................  ...........  1 hr.std.N.A.\2\
Big Stone County........................  ...........  1 hr.std.N.A.\2\
Blue Earth County.......................  ...........  1 hr.std.N.A.\2\
Brown County............................  ...........  1 hr.std.N.A.\2\

[[Page 31057]]


Carlton County..........................  ...........  1 hr.std.N.A.\2\
Cass County.............................  ...........  1 hr.std.N.A.\2\
Chippewa County.........................  ...........  1 hr.std.N.A.\2\
Chisago County..........................  ...........  1 hr.std.N.A.\2\
Clay County.............................  ...........  1 hr.std.N.A.\2\
Clearwater County.......................  ...........  1 hr.std.N.A.\2\
Cook County.............................  ...........  1 hr.std.N.A.\2\
Cottonwood County.......................  ...........  1 hr.std.N.A.\2\
Crow Wing County........................  ...........  1 hr.std.N.A.\2\
Dodge County............................  ...........  1 hr.std.N.A.\2\
Douglas County..........................  ...........  1 hr.std.N.A.\2\
Faribault County........................  ...........  1 hr.std.N.A.\2\
Fillmore County.........................  ...........  1 hr.std.N.A.\2\
Freeborn County.........................  ...........  1 hr.std.N.A.\2\
Goodhue County..........................  ...........  1 hr.std.N.A.\2\
Grant County............................  ...........  1 hr.std.N.A.\2\
Houston County..........................  ...........  1 hr.std.N.A.\2\
Hubbard County..........................  ...........  1 hr.std.N.A.\2\
Isanti County...........................  ...........  1 hr.std.N.A.\2\
Itasca County...........................  ...........  1 hr.std.N.A.\2\
Jackson County..........................  ...........  1 hr.std.N.A.\2\
Kanabec County..........................  ...........  1 hr.std.N.A.\2\
Kandiyohi County........................  ...........  1 hr.std.N.A.\2\
Kittson County..........................  ...........  1 hr.std.N.A.\2\
Koochiching County......................  ...........  1 hr.std.N.A.\2\
Lac qui Parle County....................  ...........  1 hr.std.N.A.\2\
Lake County.............................  ...........  1 hr.std.N.A.\2\
Lake of the Woods County................  ...........  1 hr.std.N.A.\2\
Le Sueur County.........................  ...........  1 hr.std.N.A.\2\
Lincoln County..........................  ...........  1 hr.std.N.A.\2\
Lyon County.............................  ...........  1 hr.std.N.A.\2\
Mahnomen County.........................  ...........  1 hr.std.N.A.\2\
Marshall County.........................  ...........  1 hr.std.N.A.\2\
Martin County...........................  ...........  1 hr.std.N.A.\2\
McLeod County...........................  ...........  1 hr.std.N.A.\2\
Meeker County...........................  ...........  1 hr.std.N.A.\2\
Mille Lacs County.......................  ...........  1 hr.std.N.A.\2\
Morrison County.........................  ...........  1 hr.std.N.A.\2\
Mower County............................  ...........  1 hr.std.N.A.\2\
Murray County...........................  ...........  1 hr.std.N.A.\2\
Nicollet County.........................  ...........  1 hr.std.N.A.\2\
Nobles County...........................  ...........  1 hr.std.N.A.\2\
Norman County...........................  ...........  1 hr.std.N.A.\2\
Olmsted County..........................  ...........  1 hr.std.N.A.\2\
Otter Tail County.......................  ...........  1 hr.std.N.A.\2\
Pennington County.......................  ...........  1 hr.std.N.A.\2\
Pine County.............................  ...........  1 hr.std.N.A.\2\
Pipestone County........................  ...........  1 hr.std.N.A.\2\
Polk County.............................  ...........  1 hr.std.N.A.\2\
Pope County.............................  ...........  1 hr.std.N.A.\2\
Red Lake County.........................  ...........  1 hr.std.N.A.\2\
Redwood County..........................  ...........  1 hr.std.N.A.\2\
Renville County.........................  ...........  1 hr.std.N.A.\2\
Rice County.............................  ...........  1 hr.std.N.A.\2\
Rock County.............................  ...........  1 hr.std.N.A.\2\
Roseau County...........................  ...........  1 hr.std.N.A.\2\
Saint Louis County......................  ...........  1 hr.std.N.A.\2\
Sherburne County........................  ...........  1 hr.std.N.A.\2\
Sibley County...........................  ...........  1 hr.std.N.A.\2\
Stearns County..........................  ...........  1 hr.std.N.A.\2\
Steele County...........................  ...........  1 hr.std.N.A.\2\
Stevens County..........................  ...........  1 hr.std.N.A.\2\
Swift County............................  ...........  1 hr.std.N.A.\2\
Todd County.............................  ...........  1 hr.std.N.A.\2\
Traverse County.........................  ...........  1 hr.std.N.A.\2\
Wabasha County..........................  ...........  1 hr.std.N.A.\2\
Wadena County...........................  ...........  1 hr.std.N.A.\2\
Waseca County...........................  ...........  1 hr.std.N.A.\2\
Watonwan County.........................  ...........  1 hr.std.N.A.\2\
Wilkin County...........................  ...........  1 hr.std.N.A.\2\

[[Page 31058]]


Winona County...........................  ...........  1 hr.std.N.A.\2\
Wright County...........................  ...........  1 hr.std.N.A.\2\
Yellow Medicine County..................  ...........  1 hr.std.N.A.\2\
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    26. In Sec. 81.325, the table entitled ``Mississippi--Ozone'' is
revised to read as follows:


Sec. 81.325  Mississippi.

* * * * *

                                                          Mississippi--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date\1\                       Type                      Date\1\                       Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Memphis:
    De Soto County......................     11/15/90  Unclassifiable /Attainment...............     11/15/90  .........................................
Rest of State...........................  ...........  1 hr.std.N.A.\2\.........................
    Adams County
    Alcorn County
    Amite County
    Attala County
    Benton County
    Bolivar County
    Calhoun County
    Carroll County
    Chickasaw County
    Choctaw County
    Claiborne County
    Clarke County
    Clay County
    Coahoma County
    Copiah County
    Covington County
    Forrest County
    Franklin County
    George County
    Greene County
    Grenada County
    Hancock County
    Harrison County
    Hinds County
    Holmes County
    Humphreys County
    Issaquena County
    Itawamba County
    Jackson County
    Jasper County
    Jefferson County
    Jefferson Davis County
    Jones County
    Kemper County
    Lafayette County
    Lamar County
    Lauderdale County
    Lawrence County
    Leake County
    Lee County
    Leflore County
    Lincoln County
    Lowndes County
    Madison County
    Marion County
    Marshall County
    Monroe County
    Montgomery County

[[Page 31059]]


    Neshoba County
    Newton County
    Noxubee County
    Oktibbeha County
    Panola County
    Pearl River County
    Perry County
    Pike County
    Pontotoc County
    Prentiss County
    Quitman County
    Rankin County
    Scott County
    Sharkey County
    Simpson County
    Smith County
    Stone County
    Sunflower County
    Tallahatchie County
    Tate County
    Tippah County
    Tishomingo County
    Tunica County
    Union County
    Walthall County
    Warren County
    Washington County
    Wayne County
    Wilkinson County
    Winston County
    Yalobusha County
    Yazoo County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    27. In Sec. 81.326, the table entitled ``Missouri-Ozone'' is
revised to read as follows:


Sec. 81.326  Missouri.

* * * * *

                                                            Missouri--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Kansas City Area:
    Clay County.........................      7/23/92  Attainment...............................
    Jackson County......................      7/23/92  Attainment...............................
    Platte County.......................      7/23/92  Attainment...............................
St Louis Area:
    Franklin County.....................     11/15/90  Nonattainment............................     11/15/90  Moderate.
    Jefferson County....................     11/15/90  Nonattainment............................     11/15/90  Moderate.
    St Charles County...................     11/15/90  Nonattainment............................     11/15/90  Moderate.
    St Louis............................     11/15/90  Nonattainment............................     11/15/90  Moderate.
    St Louis County.....................     11/15/90  Nonattainment............................     11/15/90  Moderate.
AQCR 094 Metro Kansas City Interstate     ...........  1 hr.std.N.A. \2\
 (Remainder of).
    Buchanan County
    Cass County
    Ray County
AQCR 137 N. Missouri Intrastate (part)    ...........  1 hr.std.N.A. \2\
 Pike County.
    Ralls County                          ...........  1 hr.std.N.A. \2\
AQCR 137 N. Missouri Intrastate           ...........  1 hr.std.N.A. \2\
 (Remainder of).
    Adair County
    Andrew County
    Atchison County
    Audrain County
    Boone County
    Caldwell County

[[Page 31060]]


    Callaway County
    Carroll County
    Chariton County
    Clark County
    Clinton County
    Cole County
    Cooper County
    Daviess County
    De Kalb County
    Gentry County
    Grundy County
    Harrison County
    Holt County
    Howard County
    Knox County
    Lewis County
    Lincoln County
    Linn County
    Livingston County
    Macon County
    Marion County
    Mercer County
    Moniteau County
    Monroe County
    Montgomery County
    Nodaway County
    Osage County
    Putnam County
    Randolph County
    Saline County
    Schuyler County
    Scotland County
    Shelby County
    Sullivan County
    Warren County
    Worth County
    Rest of State                         ...........  1 hr.std.N.A. \2\
    Barry County
    Barton County
    Bates County
    Benton County
    Bollinger County
    Butler County
    Camden County
    Cape Girardeau County
    Carter County
    Cedar County
    Christian County
    Crawford County
    Dade County
    Dallas County
    Dent County
    Douglas County
    Dunklin County
    Gasconade County
    Greene County
    Henry County
    Hickory County
    Howell County
    Iron County
    Jasper County
    Johnson County
    Laclede County
    Lafayette County
    Lawrence County
    Madison County
    Maries County
    McDonald County
    Miller County
    Mississippi County

[[Page 31061]]


    Morgan County
    New Madrid County
    Newton County
    Oregon County
    Ozark County
    Pemiscot County
    Perry County
    Pettis County
    Phelps County
    Polk County
    Pulaski County
    Reynolds County
    Ripley County
    Scott County
    Shannon County
    St. Clair County
    St. Francois County
    Ste. Genevieve County
    Stoddard County
    Stone County
    Taney County
    Texas County
    Vernon County
    Washington County
    Wayne County
    Webster County
    Wright County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    28. In Sec. 81.327, the table entitled ``Montana-Ozone'' is revised
to read as follows:


Sec. 81.327  Montana.

* * * * * * *

                                                            Montana--Ozone (1-hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Beaverhead County                         ...........   1 hr.std.N.A.\2\
 ..........................
Big Horn County                           ...........   1 hr.std.N.A.\2\
 (part)......................
    excluding Crow, Northern Cheyenne
     Indian Reservations
Blaine County                             ...........   1 hr.std.N.A.\2\
 (part)........................
    excluding Fort Belknap Indian
     Reservation
Broadwater County                         ...........   1 hr.std.N.A.\2\
 ..........................
Carbon County                             ...........   1 hr.std.N.A.\2\
 ..............................
Carter County                             ...........   1 hr.std.N.A.\2\
 ..............................
Cascade County                            ...........   1 hr.std.N.A.\2\
 .............................
Chouteau County                           ...........   1 hr.std.N.A.\2\
 (part)......................
    excluding Rocky Boy Indian
     Reservation
Custer County                             ...........   1 hr.std.N.A.\2\
 ..............................
Daniels County                            ...........   1 hr.std.N.A.\2\
 (part).......................
    excluding Fort Peck Indian
     Reservation
Dawson County                             ...........   1 hr.std.N.A.\2\
 ..............................
Deer Lodge County                         ...........   1 hr.std.N.A.\2\
 ..........................
Fallon County                             ...........   1 hr.std.N.A.\2\
 ..............................
Fergus County                             ...........   1 hr.std.N.A.\2\
 ..............................
Flathead County                           ...........   1 hr.std.N.A.\2\
 (part)......................
     excluding Flathead Indian
     Resevation
Gallatin County                           ...........   1 hr.std.N.A.\2\
 ............................
Garfield County                           ...........   1 hr.std.N.A.\2\
 ............................
Glacier County                            ...........   1 hr.std.N.A.\2\
 (part).......................
    excluding Blackfeet Indian
     Reservation
Golden Valley County                      ...........   1 hr.std.N.A.\2\
 .......................
Granite County                            ...........   1 hr.std.N.A.\2\
 .............................
Hill County                               ...........   1 hr.std.N.A.\2\
 (part)..........................

[[Page 31062]]


    excluding Rocky Boy Indian
     Reservation
Jefferson County                          ...........   1 hr.std.N.A.\2\
 ...........................
Judith Basin County                       ...........   1 hr.std.N.A.\2\
 ........................
Lake County                               ...........   1 hr.std.N.A.\2\
 (part)..........................
    excluding Flathead Indian
     Reservation
Lewis and Clark County                    ...........   1 hr.std.N.A.\2\
 .....................
Liberty County                            ...........   1 hr.std.N.A.\2\
 .............................
Lincoln County                            ...........   1 hr.std.N.A.\2\
 .............................
Madison County                            ...........   1 hr.std.N.A.\2\
 .............................
McCone County                             ...........   1 hr.std.N.A.\2\
 ..............................
Meagher County                            ...........   1 hr.std.N.A.\2\
 .............................
Mineral County                            ...........   1 hr.std.N.A.\2\
 .............................
Missoula County                           ...........   1 hr.std.N.A.\2\
 (part)......................
    excluding Flathead Indian
     Reservation
Musselshell County                        ...........   1 hr.std.N.A.\2\
 .........................
Park County                               ...........   1 hr.std.N.A.\2\
 ................................
Petroleum County                          ...........   1 hr.std.N.A.\2\
 ...........................
Phillips County                           ...........   1 hr.std.N.A.\2\
 (part)......................
    excluding Fort Belknap Indian
     Reservation
Pondera County                            ...........   1 hr.std.N.A.\2\
 (part).......................
    excluding Blackfeet Indian
     Reservation
Powder River County                       ...........   1 hr.std.N.A.\2\
 ........................
Powell County                             ...........   1 hr.std.N.A.\2\
 ..............................
Prairie County                            ...........   1 hr.std.N.A.\2\
 .............................
Ravalli County                            ...........   1 hr.std.N.A.\2\
 .............................
Richland County                           ...........   1 hr.std.N.A.\2\
 ............................
Roosevelt County                          ...........   1 hr.std.N.A.\2\
 (part).....................
    excluding Fort Peck Indian
     Reservation
Rosebud County                            ...........   1 hr.std.N.A.\2\
 (part).......................
    excluding Northern Cheyenne Indian
     Reservation
Sanders County                            ...........   1 hr.std.N.A.\2\
 (part).......................
    excluding Flathead Indian
     Reservation
Sheridan County                           ...........   1 hr.std.N.A.\2\
 (part)......................
    excluding Fort Peck Indian
     Reservation
Silver Bow County                         ...........   1 hr.std.N.A.\2\
 ..........................
Stillwater County                         ...........   1 hr.std.N.A.\2\
 ..........................
Sweet Grass County                        ...........   1 hr.std.N.A.\2\
 .........................
Teton County                              ...........   1 hr.std.N.A.\2\
 ...............................
Toole County                              ...........   1 hr.std.N.A.\2\
 ...............................
Treasure County                           ...........   1 hr.std.N.A.\2\
 ............................
Valley County                             ...........   1 hr.std.N.A.\2\
 (part)........................
    excluding Fort Peck Indian
     Reservation
Wheatland County                          ...........   1 hr.std.N.A.\2\
 ...........................
Wibaux County                             ...........   1 hr.std.N.A.\2\
 ..............................
Yellowstone County                        ...........   1 hr.std.N.A.\2\
 (part)...................
    excluding Crow Indian Reservation
Yellowstone Natl Park                     ...........   1 hr.std.N.A.\2\
 ......................
Blackfeet Indian Reservation              ...........   1 hr.std.N.A.\2\
 ...............
    Glacier County (part)
         area inside Blackfeet
         Reservation
    Pondera County (part)
        area inside Blackfeet
         Reservation
Crow Indian Reservation                   ...........   1 hr.std.N.A.\2\
 ....................
    Bighorn County (part)
        area inside Crow Reservation
    Yellowstone (part)
        area inside Crow Reservation
Flathead Indian Reservation               ...........   1 hr.std.N.A.\2\
 ................
    Flathead County (part)
        area inside Flathead Reservation
    Lake County (part)
        area inside Flathead Reservation
    Missoula County (part)
        area inside Flathead Reservation
    Sanders County (part)
        area inside Flathead Reservation
Fort Belknap Indian Reservation           ...........   1 hr.std.N.A.\2\
 ............
    Blaine County (part)
        area inside Fort Belknap
         Reservation
    Phillips County (part)

[[Page 31063]]


        area inside Fort Belknap
         Reservation
Fort Peck Indian Reservation              ...........   1 hr.std.N.A.\2\
 ...............
    Daniels County (part)
        area inside Fort Peck
         Reservation
    Roosevelt County (part)
        area inside Fort Peck
         Reservation
    Sheridan County (part)
        area inside Fort Peck
         Reservation
    Valley County (part)
        area inside Fort Peck
         Reservation
Northern Cheyenne Indian Reservation      ...........   1 hr.std.N.A.\2\
 .......
    Bighorn County (part)
        area inside Northern Cheyenne
         Reservation
    Rosebud County (part)
        area inside Northern Cheyenne
         Reservation
Rocky Boy Indian Reservation              ...........   1 hr.std.N.A.\2\
 ...............
    Chouteau County (part)
        area inside Rocky Boy
         Reservation
    Hill County (part)
        area inside Rocky Boy
         Reservation
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    29. In Sec. 81.328, the table entitled ``Nebraska-Ozone'' is
revised to read as follows:


Sec. 81.328  Nebraska.

* * * * * * *

                                                            Nebraska--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \2\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Statewide...............................  ...........  1 hr.std.N.A.\2\
    Adams County
    Antelope County
    Arthur County
    Banner County
    Blaine County
    Boone County
    Box Butte County
    Boyd County
    Brown County
    Buffalo County
    Burt County
    Butler County
    Cass County
    Cedar County
    Chase County
    Cherry County
    Cheyenne County
    Clay County
    Colfax County
    Cuming County
    Custer County
    Dakota County
    Dawes County
    Dawson County
    Deuel County
    Dixon County
    Dodge County
    Douglas County
    Dundy County
    Fillmore County
    Franklin County
    Frontier County
    Furnas County
    Gage County

[[Page 31064]]


    Garden County
    Garfield County
    Gosper County
    Grant County
    Greeley County
    Hall County
    Hamilton County
    Harlan County
    Hayes County
    Hitchcock County
    Holt County
    Hooker County
    Howard County
    Jefferson County
    Johnson County
    Kearney County
    Keith County
    Keya Paha County
    Kimball County
    Knox County
    Lancaster County
    Lincoln County
    Logan County
    Loup County
    Madison County
    McPherson County
    Merrick County
    Morrill County
    Nance County
    Nemaha County
    Nuckolls County
    Otoe County
    Pawnee County
    Perkins County
    Phelps County
    Pierce County
    Platte County
    Polk County
    Red Willow County
    Richardson County
    Rock County
    Saline County
    Sarpy County
    Saunders County
    Scotts Bluff County
    Seward County
    Sheridan County
    Sherman County
    Sioux County
    Stanton County
    Thayer County
    Thomas County
    Thurston County
    Valley County
    Washington County
    Wayne County
    Webster County
    Wheeler County
    York County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    30. In Sec. 81.329, the table entitled ``Nevada--Ozone'' is revised
to read as follows:


Sec. 81.329  Nevada.

* * * * *

[[Page 31065]]



                                                             Nevada--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Reno Area...............................  ...........  1 hr.std.N.A.\2\
    Washoe County
Rest of State...........................  ...........  1 hr.std.N.A.\2\
    Carson City
    Churchill County
    Clark County
    Douglas County
    Elko County
    Esmeralda County
    Eureka County
    Humboldt County
    Lander County
    Lincoln County
    Lyon County
    Mineral County
    Nye County
    Pershing County
    Storey County
    White Pine County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    31. In Sec. 81.330, the table entitled ``New Hampshire-Ozone'' is
revised to read as follows:


Sec. 81.330  New Hampshire.

* * * * *

                                                         New Hampshire--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Belknap County Area:
    Belknap County......................  ...........  1 hr.std. N.A.\2\
Boston-Lawrence-Worcester Area:
    Hillsborough County (part)..........     11/15/90  Nonattainment............................     11/15/90  Serious.
        Pelham Town, Amherst Town,
         Brookline Town, Hollis Town,
         Hudson Town, Litchfield Town,
         Merrimack Town, Milford Town,
         Mont Vernon Town, Nashua City,
         Wilton Town.
    Rockingham County (part)............     11/15/90  Nonattainment............................     11/15/90  Serious.
        Atkinson Town, Brentwood Town,
         Danville Town, Derry Town, E
         Kingston Town, Hampstead Town,
         Hampton Falls Town, Kensington
         Town, Kingston Town,
         Londonderry Town, Newton Town,
         Plaistow Town, Salem Town,
         Sandown Town, Seabrook Town,
         South Hampton Town, Windham
         Town.
Cheshire County Area:
    Cheshire County.....................  ...........  1 hr.std. N.A.\2\
Manchester Area:
    Hillsborough County (part)..........  ...........  1 hr.std. N.A.\2\
        Antrim Town, Bedford Town,
         Bennington Town, Deering Town,
         Francestown Town, Goffstown
         Town, Greenfield Town,
         Greenville Town, Hancock Town,
         Hillsborough Town, Lyndeborough
         Town, Manchester city, Mason
         Town, New Boston Town, New
         Ipswich Town, Petersborough
         Town, Sharon Town, Temple town,
         Weare Town, Windsor Town.
    Merrimack County....................  ...........  1 hr.std. N.A.\2\
    Rockingham County (part)............  ...........  1 hr.std. N.A.\2\
        Auburn Town, Candia Town,
         Chester Town, Deerfield Town,
         Epping Town, Fremont Town,
         Northwood Town, Nottingham
         Town, Raymond Town.
Portsmouth-Dover-Rochester Area:
    Rockingham County (part)............     11/15/90  Nonattainment............................     11/15/90  Serious.

[[Page 31066]]


        Exeter Town, Greenland Town,
         Hampton Town, New Castle Town,
         Newfields Town, Newington Town,
         Newmarket Town, North Hampton
         Town, Portsmouth city, Rye
         Town, Stratham Town.
    Strafford County....................     11/15/90  Nonattainment............................     11/15/90  Serious.
Sullivan County Area:

    Sullivan County.....................  ...........  1 hr.std. N.A.\2\
AQCR 107 Androscoggin Valley Interstate:
    Coos County.........................  ...........  1 hr.std. N.A.\2\
AQCR 149 Central New Hampshire
 Interstate:
    Carroll County......................  ...........  1 hr.std. N.A.\2\
    Grafton County......................  ...........  1 hr.std. N.A.\2\
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    32 In Sec. 81.331, the table entitled ``New Jersey-Ozone'' is
revised to read as follows:


Sec. 81.331  New Jersey.

* * * * *

                                                           New Jersey--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Allentown-Bethlehem Easton Area:
    Warren County.......................  ...........  1 hr.std. N.A.\2\
Atlantic City Area:
    Atlantic County.....................  ...........  1 hr.std. N.A.\2\
    Cape May County.....................  ...........  1 hr.std. N.A.\2\
New York-N. New Jersey-Long Island Area:
    Bergen County.......................     11/15/90  Nonatainment.............................     11/15/90  Severe-17.
    Essex County........................     11/15/90  Nonatainment.............................     11/15/90  Severe-17.
    Hudson County.......................     11/15/90  Nonatainment.............................     11/15/90  Severe-17.
    Hunterdon County....................     11/15/90  Nonatainment.............................     11/15/90  Severe-17.
    Middlesex County....................     11/15/90  Nonatainment.............................     11/15/90  Severe-17.
    Monmouth County.....................     11/15/90  Nonatainment.............................     11/15/90  Severe-17.
    Morris County.......................     11/15/90  Nonatainment.............................     11/15/90  Severe-17.
    Ocean County........................     11/15/90  Nonatainment.............................     11/15/90  Severe-17.
    Passaic County......................     11/15/90  Nonatainment.............................     11/15/90  Severe-17.
    Somerset County.....................     11/15/90  Nonatainment.............................     11/15/90  Severe-17.
    Sussex County.......................     11/15/90  Nonatainment.............................     11/15/90  Severe-17.
    Union County........................     11/15/90  Nonatainment.............................     11/15/90  Severe-17.
Philadelphia-Wilmington-Trenton Area:
    Burlington County...................     11/15/90  Nonatainment.............................     11/15/90  Severe-15.
    Camden County.......................     11/15/90  Nonatainment.............................     11/15/90  Severe-15.
    Cumberland County...................     11/15/90  Nonatainment.............................     11/15/90  Severe-15.
    Gloucester County...................     11/15/90  Nonatainment.............................     11/15/90  Severe-15.
    Mercer County.......................     11/15/90  Nonatainment.............................     11/15/90  Severe-15.
    Salem County........................     11/15/90  Nonatainment.............................     11/15/90  Severe-15.
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1-hour standard Not Applicable.

* * * * *
    33. In Sec. 81.332, the table entitled ``New Mexico-Ozone'' is
revised to read as follows:


Sec. 81.332  New Mexico.

* * * * *

                                                           New Mexico--Ozone (1-hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
AQCR 012 New Mexico-Southern Border       ...........  1 hr.std.N.A.\2\                           ...........  .........................................
 Intrastate.

[[Page 31067]]


    Grant County
    Hidalgo County
    Luna County
AQCR 014 Four Corners Interstate........  ...........  1 hr.std.N.A.\2\                           ...........  .........................................
        see 40 CFR 81.121
    McKinley County (part)
    Rio Arriba County (part)
    San Juan County
    Sandoval County (part)
    Valencia County (part)
AQCR 152 Albuquerque-Mid Rio Grande       ...........  1 hr.std.N.A.\2\                           ...........  .........................................
 Intrastate.
    Bernalillo County (part)
AQCR 152 Albuquerque-Mid Rio Grande.....  ...........  1 hr.std.N.A.\2\                           ...........  .........................................
    Sandoval County (part)
        see 40 CFR 81.83
    Valencia County
        see 40 CFR 81.83
AQCR 153 El Paso-Las Cruces-Alamogordo..      7/12/95  Nonattainment............................      7/12/95  Marginal
    Dona Ana County (part)-(Sunland Park
     Area)
    The area bounded by the New Mexico-
     Texas
    State line on the east, the New
     Mexico-Mexico internationalline on
     the south, Range 3E-Range 2E, line
     on the west, and the N3200 latitude
     line on the north.
    Dona Ana County (remainder of)......  ...........  1 hr.std.N.A.\2\                           ...........  .........................................
    Lincoln County......................  ...........  1 hr.std.N.A.\2\                           ...........  .........................................
    Otero County........................  ...........  1 hr.std.N.A.\2\                           ...........  .........................................
    Sierra County.......................  ...........  1 hr.std.N.A.\2\                           ...........  .........................................
AQCR 154 Northeastern Plains Intrastate.  ...........  1 hr.std.N.A.\2\                           ...........  .........................................
    Colfax County
    Guadalupe County
    Harding County
    Mora County
    San Miguel County
    Torrance County
    Union County
AQCR 155 Pecos-Permian Basin Intrastate.  ...........  1 hr.std.N.A.\2\                           ...........  .........................................
    Chaves County
    Curry County
    De Baca County
    Eddy County
    Lea County
    Quay County
    Roosevelt County
AQCR 156 SW Mountains-Augustine Plains..  ...........  1 hr.std.N.A.\2\                           ...........  .........................................
    Catron County
    Cibola County
    McKinley County (part)
        see 40 CFR 81.241
    Socorro County
    Valencia County (part)
        see 40 CFR 81.241
AQCR 157 Upper Rio Grande Valley          ...........  1 hr.std.N.A.\2\                           ...........  .........................................
 Intrastate.
    Los Alamos County
    Rio Arriba County (part)
        see 40 CFR 81.239
    Santa Fe County
    Taos County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    34. In Sec. 81.333, the table entitled ``New York-Ozone'' is
revised to read as follows:


Sec. 81.333  New York.

* * * * *

[[Page 31068]]



                                                            New York--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date\1\                       Type                      Date \2\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Albany-Schenectady-Troy Area:
    Albany County.......................  ...........  1 hr. std. N.A. \3\
    Greene County.......................  ...........  1 hr. std. N.A. \3\
    Montgomery County...................  ...........  1 hr. std. N.A. \3\
    Rensselaer County...................  ...........  1 hr. std. N.A. \3\
    Saratoga County.....................  ...........  1 hr. std. N.A. \3\
    Schenectady County..................  ...........  1 hr. std. N.A. \3\
Buffalo-Niagara Falls Area:
    Erie County.........................  ...........  1 hr. std. N.A. \3\
    Niagara County......................  ...........  1 hr. std. N.A. \3\
Essex County Area:
    Essex County (part).................  ...........  1 hr. std. N.A. \3\
        The portion of Whiteface
         Mountain above 4500 feet in
         elevation in Essex County
Jefferson County Area:
    Jefferson County....................  ...........  1 hr. std. N.A. \3\
New York-Northern New Jersey-Long Island
 Area:
    Bronx County........................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
    Kings County........................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
    Nassau County.......................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
    New York County.....................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
    Orange County (part)................      1/15/92  Nonattainment............................      1/15/92  Severe-17.
        Blooming Grove, Chester,
         Highlands, Monroe, Tuxedo,
         Warwick, and Woodbury
    Queens County.......................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
    Richmond County.....................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
    Rockland County.....................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
    Suffolk County......................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
    Westchester County..................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
Poughkeepsie Area:
    Dutchess County.....................       1/6/92  Nonattainment............................      11/7/94  Moderate.
    Orange County (remainder)...........  4/21/94 \2\  Nonattainment............................  11/7/94 \2\  Moderate.
    Putnam County.......................      1/15/92  Nonattainment............................      11/7/94  Moderate.
AQCR 158 Central New York Intrastate      ...........  1 hr. std. N.A. \3\
 (Remainder of).
    Cayuga County
    Cortland County
    Herkimer County
    Lewis County
    Madison County
    Oneida County
    Onondaga County
    Oswego County
AQCR 159 Champlain Valley Interstate      ...........  1 hr. std. N.A. \3\
 (Remainder of).
    Clinton County
    Essex County
    Franklin County
    Hamilton County
    St. Lawrence County
    Warren County
    Washington County
AQCR 160 Genessee-Finger Lakes            ...........  1 hr. std. N.A. \3\
 Intrastate.
    Genesee County
    Livingston County
    Monroe County
    Ontario County
    Orleans County
    Seneca County
    Wayne County
    Wyoming County
    Yates County
AQCR 161 Hudson Valley Intrastate         ...........  1 hr. std. N.A. \3\
 (Remainder of).
    Columbia County
    Fulton County
    Schoharie County
    Ulster County
AQCR 163 Southern Tier East Intrastate..  ...........  1 hr. std. N.A. \3\
    Broome County
    Chenango County
    Delaware County
    Otsego County

[[Page 31069]]


    Sullivan County
    Tioga County
AQCR 164 Southern Tier West Intrastate..  ...........  1 hr. std. N.A. \3\
    Allegany County
    Cattaraugus County
    Chautauqua County
    Chemung County
    Schuyler County
    Steuben County
    Tompkins County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ However, the effective date is November 15, 1990, for purposes of determining the scope of a ``covered area'' under section 211 (k)(10)(D), opt-in
  under section 211 (k)(6), and the baseline determination of the 15% reduction in volatile organic compounds under section 182 (b)(1).
\3\ 1 hour standard Not Applicable.

* * * * *
    35. In Sec. 81.334, the table entitled ``North Carolina-Ozone'' is
revised to read as follows:


Sec. 81.334  North Carolina

* * * * *

                                                         North Carolina--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date\1\                       Type                      Date\1\                       Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Statewide...............................  ...........  1 hr.std.N.A.\2\
    Alamance County
    Alexander County
    Alleghany County
    Anson County
    Ashe County
    Avery County
    Beaufort County
    Bertie County
    Bladen County
    Brunswick County
    Buncombe County
    Burke County
    Cabarrus County
    Caldwell County
    Camden County
    Carteret County
    Caswell County
    Catawba County
    Chatham County
    Cherokee County
    Chowan County
    Clay County
    Cleveland County
    Columbus County
    Craven County
    Cumberland County
    Currituck County
    Dare County
    Davidson County
    Davie County
    Durham County
    Duplin County
    Edgecombe County
    Forsyth County
    Franklin County
    Gaston County
    Gates County
    Graham County
    Granville County
    Greene County
    Guilford County
    Halifax County

[[Page 31070]]


    Harnett County
    Haywood County
    Henderson County
    Hertford County
    Hoke County
    Hyde County
    Iredell County
    Jackson County
    Johnston County
    Jones County
    Lee County
    Lenoir County
    Lincoln County
    McDowell County
    Macon County
    Madison County
    Martin County
    Mecklenburg County
    Mitchell County
    Montgomery County
    Moore County
    Nash County
    New Hanover County
    Northhampton County
    Onslow County
    Orange County
    Pamlico County
    Pasquotank County
    Pender County
    Perquimans County
    Person County
    Pitt County
    Polk County
    Randolph County
    Richmond County
    Robeson County
    Rockingham County
    Rowan County
    Rutherford County
    Sampson County
    Scotland County
    Stanly County
    Stokes County
    Surry County
    Swain County
    Transylvania County
    Tyrrell County
    Union County
    Vance County
    Wake County
    Warren County
    Washington County
    Watauga County
    Wayne County
    Wilkes County
    Wilson County
    Yadkin County
    Yancey County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    36. In Sec. 81.335, the table entitled ``North Dakota--Ozone'' is
revised to read as follows:


Sec. 81.335  North Dakota.

* * * * *

[[Page 31071]]



                                                          North Dakota--Ozone (1-hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated Area             ---------------------------------------------------------------------------------------------------------------
                                            Date\1\                       Type                      Date\1\                       Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
AQCR 130 Metropolitan Fargo-Moorhead      ...........  1 hr.std.N.A.\2\
 Interstate.
    Cass County
Rest of State, AQCR 172.................  ...........  1 hr.std.N.A.\2\
    Adams County
    Barnes County
    Benson County
    Billings County
    Bottineau County
    Bowman County
    Burke County
    Burleigh County
    Cavalier County
    Dickey County
    Divide County
    Dunn County
    Eddy County
    Emmons County
    Foster County
    Golden Valley County
    Grand Forks County
    Grant County
    Griggs County
    Hettinger County
    Kidder County
    La Moure County
    Logan County
    McHenry County
    McIntosh County
    McKenzie County
    McLean County
    Mercer County
    Morton County
    Mountrail County
    Nelson County
    Oliver County
    Pembina County
    Pierce County
    Ramsey County
    Ransom County
    Renville County
    Richland County
    Rolette County
    Sargent County
    Sheridan County
    Sioux County
    Slope County
    Stark County
    Steele County
    Stutsman County
    Towner County
    Traill County
    Walsh County
    Ward County
    Wells County
    Williams County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    37. In Sec. 81.336, the table entitled ``Ohio-Ozone'' is revised to
read as follows:


Sec. 81.336  Ohio.

* * * * *

[[Page 31072]]



                                                              Ohio--Ozone (1-Hour standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date\1\                       Type                      Date\1\                       Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Canton Are:
    Stark County........................  ...........  1 hr.std.N.A.\2\
Cincinnati-Hamilton Area:
    Butler County.......................     11/15/90  Nonattainment............................     11/15/90  Moderate.
    Clermont County.....................     11/15/90  Nonattainment............................     11/15/90  Moderate.
    Hamilton County.....................     11/15/90  Nonattainment............................     11/15/90  Moderate.
    Warren County.......................     11/15/90  Nonattainment............................     11/15/90  Moderate.
Cleveland-Akron-Lorain Area:
    Ashtabula County....................  ...........  1 hr.std.N.A.\2\
    Cuyahoga County.....................  ...........  1 hr.std.N.A.\2\
    Geauga County.......................  ...........  1 hr.std.N.A.\2\
    Lake County.........................  ...........  1 hr.std.N.A.\2\
    Lorain County.......................  ...........  1 hr.std.N.A.\2\
    Medina County.......................  ...........  1 hr.std.N.A.\2\
    Portage County......................  ...........  1 hr.std.N.A.\2\
    Summit County.......................  ...........  1 hr.std.N.A.\2\
Clinton County Area:
    Clinton County......................  ...........  1 hr.std.N.A.\2\
Columbiana County Area:
    Columbiana County...................  ...........  1 hr.std.N.A.\2\
Columbus Area:
    Delaware County.....................  ...........  1 hr.std.N.A.\2\
    Franklin County.....................  ...........  1 hr.std.N.A.\2\
    Licking County......................  ...........  1 hr.std.N.A.\2\
Dayton-Springfield Area:
    Clark County........................       7/5/95  Attainment
    Greene County.......................       7/5/95  Attainment
    Miami County........................       7/5/95  Attainment
    Montgomery County...................       7/5/95  Attainment
Preble County Area:
    Preble County.......................  ...........  1 hr.std.N.A.\2\
Steubenville Area:
    Jefferson County....................  ...........  1 hr.std.N.A.\2\
Toledo Area:
    Lucas County........................  ...........  1 hr.std.N.A.\2\
    Wood County.........................  ...........  1 hr.std.N.A.\2\
Youngstown-Warren-Sharon Area:
    Mahoning County.....................  ...........  1 hr.std.N.A.\2\
    Trumbull County.....................  ...........  1 hr.std.N.A.\2\
Adams County............................  ...........  1 hr.std.N.A.\2\
Allen County............................  ...........  1 hr.std.N.A.\2\
Ashland County..........................  ...........  1 hr.std.N.A.\2\
Athens County...........................  ...........  1 hr.std.N.A.\2\
Auglaize County.........................  ...........  1 hr.std.N.A.\2\
Belmont County..........................  ...........  1 hr.std.N.A.\2\
Brown County............................  ...........  1 hr.std.N.A.\2\
Carroll County..........................  ...........  1 hr.std.N.A.\2\
Champaign County........................  ...........  1 hr.std.N.A.\2\
Coshocton County........................  ...........  1 hr.std.N.A.\2\
Crawford County.........................  ...........  1 hr.std.N.A.\2\
Darke County............................  ...........  1 hr.std.N.A.\2\
Defiance County.........................  ...........  1 hr.std.N.A.\2\
Erie County.............................  ...........  1 hr.std.N.A.\2\
Fairfield County........................  ...........  1 hr.std.N.A.\2\
Fayette County..........................  ...........  1 hr.std.N.A.\2\
Fulton County...........................  ...........  1 hr.std.N.A.\2\
Gallia County...........................  ...........  1 hr.std.N.A.\2\
Guernsey County.........................  ...........  1 hr.std.N.A.\2\
Hancock County..........................  ...........  1 hr.std.N.A.\2\
Hardin County...........................  ...........  1 hr.std.N.A.\2\
Harrison County.........................  ...........  1 hr.std.N.A.\2\
Henry County............................  ...........  1 hr.std.N.A.\2\
Highland County.........................  ...........  1 hr.std.N.A.\2\
Hocking County..........................  ...........  1 hr.std.N.A.\2\
Holmes County...........................  ...........  1 hr.std.N.A.\2\
Huron County............................  ...........  1 hr.std.N.A.\2\
Jackson County..........................  ...........  1 hr.std.N.A.\2\
Knox County.............................  ...........  1 hr.std.N.A.\2\
Lawrence County.........................  ...........  1 hr.std.N.A.\2\
Logan County............................  ...........  1 hr.std.N.A.\2\

[[Page 31073]]


Madison County..........................  ...........  1 hr.std.N.A.\2\
Marion County...........................  ...........  1 hr.std.N.A.\2\
Meigs County............................  ...........  1 hr.std.N.A.\2\
Mercer County...........................  ...........  1 hr.std.N.A.\2\
Monroe County...........................  ...........  1 hr.std.N.A.\2\
Morgan County...........................  ...........  1 hr.std.N.A.\2\
Morrow County...........................  ...........  1 hr.std.N.A.\2\
Muskingum County........................  ...........  1 hr.std.N.A.\2\
Noble County............................  ...........  1 hr.std.N.A.\2\
Ottawa County...........................  ...........  1 hr.std.N.A.\2\
Paulding County.........................  ...........  1 hr.std.N.A.\2\
Perry County............................  ...........  1 hr.std.N.A.\2\
Pickaway County.........................  ...........  1 hr.std.N.A.\2\
Pike County.............................  ...........  1 hr.std.N.A.\2\
Putnam County...........................  ...........  1 hr.std.N.A.\2\
Richland County.........................  ...........  1 hr.std.N.A.\2\
Ross County.............................  ...........  1 hr.std.N.A.\2\
Sandusky County.........................  ...........  1 hr.std.N.A.\2\
Scioto County...........................  ...........  1 hr.std.N.A.\2\
Seneca County...........................  ...........  1 hr.std.N.A.\2\
Shelby County...........................  ...........  1 hr.std.N.A.\2\
Tuscarawas County.......................  ...........  1 hr.std.N.A.\2\
Union County............................  ...........  1 hr.std.N.A.\2\
Van Wert County.........................  ...........  1 hr.std.N.A.\2\
Vinton County...........................  ...........  1 hr.std.N.A.\2\
Washington County.......................  ...........  1 hr.std.N.A.\2\
Wayne County............................  ...........  1 hr.std.N.A.\2\
Williams County.........................  ...........  1 hr.std.N.A.\2\
Wyandot County..........................  ...........  1 hr.std.N.A.\2\
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    38. In Sec. 81.337, the table entitled ``Oklahoma-Ozone'' is
revised to read as follows:


Sec. 81.337  Oklahoma.

* * * * *

                                                            Oklahoma--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designated                                            Classification
            Designation area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
AQCR 017 Metropolitan Fort Smith          ...........  1 hr.std.N.A. \2\
 Intrastate.
    Adair County
    Cherokee County
    Le Flore County
    Sequoyah County
AQCR 022 Shreveport-Texarkana-Tyler       ...........  1 hr.std.N.A. \2\
 Intrastate.
    McCurtain County
AQCR 184 Central Oklahoma Intrastate      ...........  1 hr.std.N.A. \2\
 (part).
    Cleveland County
    Oklahoma County
AQCR 184 Central Oklahoma Intrastate      ...........  1 hr.std.N.A. \2\
 (Remainder of).
    Canadian County
    Grady County
    Kingfisher County
    Lincoln County
    Logan County
    McClain County
    Pottawatomie County
AQCR 185 North Central Oklahoma           ...........  1 hr.std.N.A. \2\
 Intrastate.
    Garfield County
    Grant County
    Kay County
    Noble County
    Payne County
AQCR 186 Northeastern Oklahoma            ...........  1 hr.std.N.A. \2\
 Intrastate.
    Craig County

[[Page 31074]]


    Creek County
    Delaware County
    Mayes County
    Muskogee County
    Nowata County
    Okmulgee County
    Osage County
    Ottawa County
    Pawnee County
    Rogers County
    Tulsa County
    Wagoner County
    Washington County
AQCR 187 Northwestern Oklahoma            ...........  1 hr.std.N.A. \2\
 Intrastate.
    Alfalfa County
    Beaver County
    Blaine County
    Cimarron County
    Custer County
    Dewey County
    Ellis County
    Harper County
    Major County
    Roger Mills County
    Texas County
    Woods County
    Woodward County
AQCR 188 Southeastern Oklahoma            ...........  1 hr.std.N.A. \2\
 Intrastate.
    Atoka County
    Bryan County
    Carter County
    Choctaw County
    Coal County
    Garvin County
    Haskell County
    Hughes County
    Johnston County
    Latimer County
    Love County
    Marshall County
    McIntosh County
    Murray County
    Okfuskee County
    Pittsburg County
    Pontotoc County
    Pushmataha County
    Seminole County
AQCR 189 Southwestern Oklahoma            ...........  1 hr.std.N.A. \2\
 Intrastate.
    Beckham County
    Caddo County
    Comanche County
    Cotton County
    Greer County
    Harmon County
    Jackson County
    Jefferson County
    Kiowa County
    Stephens County
    Tillman County
    Washita County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    39. In Sec. 81.338, the table entitled ``Oregon--Ozone'' is revised
to read as follows:


Sec. 81.338  Oregon.

* * * * *

[[Page 31075]]



                                                             Oregon-Ozone (1-hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Portland-Vancouver AQMA Area:
    Air Quality Maintenance Area
        Clackamas County (part).........  ...........  1 hr.std.N.A. \2\
        Multnomah County (part).........  ...........  1 hr.std.N.A. \2\
        Washington County (part)........  ...........  1 hr.std.N.A. \2\
Salem Area:
    Salem Area Transportation Study
        Marion County (part)............  ...........  1 hr.std.N.A. \2\
        Polk County (part)..............  ...........  1 hr.std.N.A. \2\
AQCR 190 Central Oregon Intrastate        ...........  1 hr.std.N.A. \2\
 (Remainder of).
    Crook County
    Deschutes County
    Hood River County
    Jefferson County
    Klamath County
    Lake County
    Sherman County
    Wasco County
AQCR 191 Eastern Oregon Intrastate......  ...........  1 hr.std.N.A. \2\
    Baker County
    Gilliam County
    Grant County
    Harney County
    Malheur County
    Morrow County
    Umatilla County
    Union County
    Wallowa County
    Wheeler County
AQCR 192 Northwest Oregon Intrastate....  ...........  1 hr.std.N.A. \2\
    Clatsop County
    Lincoln County
    Tillamook County
AQCR 193 Portland Interstate (part).....  ...........  1 hr.std.N.A. \2\
    Lane County (part)
        Eugene Springfield Air Quality
         Maintenance Area
AQCR 193 Portland Interstate (Remainder   ...........  1 hr.std.N.A. \2\
 of).
    Benton County
    Clackamas County (part)
        Remainder of county
    Columbia County
    Lane County (part)
        Remainder of county
    Linn County
    Marion County (part)
        area outside the Salem Area
            Transportation Study.
    Multnomah County (part)
        Remainder of county
    Polk County (part)

        area outside the Salem Area
            Transportation Study
    Washington County (part)
        Remainder of county
    Yamhill County
AQCR 194 Southwest Oregon Intrastate
 (part)
    Jackson County (part)
        Medford-Ashland Air Quality       ...........  1 hr.std.N.A. \2\
         Maintenance Area.
AQCR 194 Southwest Oregon Intrastate      ...........  1 hr.std.N.A. \2\
 (Remainder of).
    Coos County
    Curry County
    Douglas County
    Jackson County (part)
        Remainder of county
    Josephine County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *

[[Page 31076]]

    40. In Sec. 81.339, the table entitled ``Pennsylvania-Ozone'' is
revised to read as follows:


Sec. 81.339  Pennsylvania.

* * * * *

                                                          Pennsylvania--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date\1\                       Type                      Date\1\                       Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Allentown-Bethlehem-Easton Area:
    Carbon County.......................  ...........  1 hr.std.N.A.\3\
    Lehigh County.......................  ...........  1 hr.std.N.A.\3\
    Northampton County..................  ...........  1 hr.std.N.A.\3\
Altoona Area:
    Blair County........................  ...........  1 hr.std.N.A.\3\
Crawford County Area:
    Crawford County.....................  ...........  1 hr.std.N.A.\3\
    Erie Area:..........................
    Erie County.........................  ...........  1 hr.std.N.A.\3\
Franklin County Area:
    Franklin County.....................  ...........  1 hr.std.N.A.\3\
Greene County Area:
    Greene County.......................  ...........  1 hr.std.N.A.\3\
Harrisburg-Lebanon-Carlisle Area:
    Cumberland County...................  ...........  1 hr.std.N.A.\3\
    Dauphin County......................  ...........  1 hr.std.N.A.\3\
    Lebanon County......................  ...........  1 hr.std.N.A.\3\
    Perry County........................  ...........  1 hr.std.N.A.\3\
Johnstown Area:
    Cambria County......................  ...........  1 hr.std.N.A.\3\
    Somerset County.....................  ...........  1 hr.std.N.A.\3\
Juniata County Area:
    Juniata County......................  ...........  1 hr.std.N.A.\3\
Lancaster Area:
    Lancaster County....................     11/15/90  Nonattainment                                 11/15/90  Marginal.
    Lawrence County Area:...............
    Lawrence County.....................  ...........  1 hr.std.N.A.\3\
Northumberland County Area:
    Northumberland County...............  ...........  1 hr.std.N.A.\3\
Philadelphia-Wilmington-Trenton Area:
    Bucks County........................     11/15/90  Nonattainment............................     11/15/90  Severe-15.
    Chester County......................     11/15/90  Nonattainment............................     11/15/90  Severe-15.
    Delaware County.....................     11/15/90  Nonattainment............................     11/15/90  Severe-15.
    Montgomery County...................     11/15/90  Nonattainment............................     11/15/90  Severe-15.
    Philadelphia County.................     11/15/90  Nonattainment............................     11/15/90  Severe-15.
Pike County Area:
    Pike County.........................  ...........  1 hr.std.N.A.\3\
Pittsburgh-Beaver Valley Area:
    Allegheny County....................     11/15/90  Nonattainment............................     11/15/90  Moderate \2\
    Armstrong County....................     11/15/90  Nonattainment............................     11/15/90  Moderate \2\
    Beaver County.......................     11/15/90  Nonattainment............................     11/15/90  Moderate \2\
    Butler County.......................     11/15/90  Nonattainment............................     11/15/90  Moderate \2\
    Fayette County......................     11/15/90  Nonattainment............................     11/15/90  Moderate \2\
    Washington County...................     11/15/90  Nonattainment............................     11/15/90  Moderate \2\
    Westmoreland County.................     11/15/90  Nonattainment............................     11/15/90  Moderate \2\
Reading Area:
    Berks County........................  ...........  1 hr.std.N.A.\3\
Schuylkill County Area:
    Schuylkill County...................  ...........  1 hr.std.N.A.\3\
Scranton-Wilkes-Barre Area:
    Columbia County.....................  ...........  1 hr.std.N.A.\3\
    Lackawanna County...................  ...........  1 hr.std.N.A.\3\
    Luzerne County......................  ...........  1 hr.std.N.A.\3\
    Monroe County.......................  ...........  1 hr.std.N.A.\3\
    Wyoming County......................  ...........  1 hr.std.N.A.\3\
Snyder County Area:
    Snyder County.......................  ...........  1 hr.std.N.A.\3\
Susquehanna County Area:
    Susquehanna County..................  ...........  1 hr.std.N.A.\3\
Warren County Area:
    Warren County.......................  ...........  1 hr.std.N.A.\3\
Wayne County Area:
    Wayne County........................  ...........  1 hr.std.N.A.\3\
York Area:

[[Page 31077]]


    Adams County........................  ...........  1 hr.std.N.A.\3\
    York County.........................  ...........  1 hr.std.N.A.\3\
Youngstown-Warren-Sharon Area:
    Mercer County.......................  ...........  1 hr.std.N.A.\3\
AQCR 151 NE Pennsylvania Intrastate
 (Remainder of):
    Bradford County.....................  ...........  1 hr.std.N.A.\3\
    Sullivan County.....................  ...........  1 hr.std.N.A.\3\
    Tioga County........................  ...........  1 hr.std.N.A.\3\
AQCR 178 NW Pennsylvania Interstate
 (Remainder of):
    Cameron County......................  ...........  1 hr.std.N.A.\3\
    Clarion County......................  ...........  1 hr.std.N.A.\3\
    Clearfield County...................  ...........  1 hr.std.N.A.\3\
    Elk County..........................  ...........  1 hr.std.N.A.\3\
    Forest County.......................  ...........  1 hr.std.N.A.\3\
    Jefferson County....................  ...........  1 hr.std.N.A.\3\
    McKean County.......................  ...........  1 hr.std.N.A.\3\
    Potter County.......................  ...........  1 hr.std.N.A.\3\
    Venango County......................  ...........  1 hr.std.N.A.\3\
AQCR 195 Central Pennsylvania Intrastate
 (Remainder of):
    Bedford County......................  ...........  1 hr.std.N.A.\3\
    Centre County.......................  ...........  1 hr.std.N.A.\3\
    Clinton County......................  ...........  1 hr.std.N.A.\3\
    Fulton County.......................  ...........  1 hr.std.N.A.\3\
    Huntingdon County...................  ...........  1 hr.std.N.A.\3\
    Lycoming County.....................  ...........  1 hr.std.N.A.\3\
    Mifflin County......................  ...........  1 hr.std.N.A.\3\
    Montour County......................  ...........  1 hr.std.N.A.\3\
    Union County........................  ...........  1 hr.std.N.A.\3\
AQCR 197 SW Pennsylvania Intrastate
 (Remainder of):
    Indiana County......................  ...........  1 hr.std.N.A.\3\
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ Attainment date extended to 11/15/97.
\3\ 1 hour standard Not Applicable.

* * * * *
    41. In Sec. 81.340, the table entitled ``Rhode Island-Ozone'' is
revised to read as follows:


Sec. 81.340  Rhode Island.

* * * * *

                                                          Rhode Island--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated Area             ---------------------------------------------------------------------------------------------------------------
                                            Date\1\                       Type                      Date\1\                       Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Providence (all of RI) Area:
    Bristol County......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Kent County.........................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Newport County......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Providence County...................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Washington County...................     11/15/90  Nonattainment............................     11/15/90  Serious.
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.

* * * * *
    42. In Sec. 81.341, the table entitled ``South Carolina--Ozone
(Q<INF>3</INF>)'' is revised to read as follows:


Sec. 81.341  South Carolina.

* * * * *

                                                         South Carolina-Ozone (1-hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date\1\                       Type                      Date\1\                       Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Statewide...............................  ...........  1 hr.std.N.A.\2\
    Abbeville County
    Aiken County

[[Page 31078]]


    Allendale County
    Anderson County
    Bamberg County
    Barnwell County
    Beaufort County
    Berkeley County
    Calhoun County
    Charleston County
    Cherokee County
    Chester County
    Chesterfield County
    Clarendon County
    Colleton County
    Darlington County
    Dillon County
    Dorchester County
    Edgefield County
    Fairfield County
    Florence County
    Georgetown County
    Greenville County
    Greenwood County
    Hampton County
    Horry County
    Jasper County
    Kershaw County
    Lancaster County
    Laurens County
    Lee County
    Lexington County
    Marion County
    Marlboro County
    McCormick County
    Newberry County
    Oconee County
    Orangeburg County
    Pickens County
    Richland County
    Saluda County
    Spartanburg County
    Sumter County
    Union County
    Williamsburg County
    York County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    43. In Sec. 81.342, the table entitled ``South Dakota-Ozone'' is
revised to read as follows:


Sec. 81.342  South Dakota.

* * * * *

                                                          South Dakota--Ozone (1-hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Statewide...............................  ...........  1 hr.std.N.A.\2\
    Aurora County
    Beadle County
    Bennett County
    Bon Homme County
    Brookings County
    Brown County
    Brule County
    Buffalo County
    Butte County
    Campbell County

[[Page 31079]]


    Charles Mix County
    Clark County
    Clay County
    Codington County
    Corson County
    Custer County
    Davison County
    Day County
    Deuel County
    Dewey County
    Douglas County
    Edmunds County
    Fall River County
    Faulk County
    Grant County
    Gregory County
    Haakon County
    Hamlin County
    Hand County
    Hanson County
    Harding County
    Hughes County
    Hutchinson County
    Hyde County
    Jackson County
    Jerauld County
    Jones County
    Kingsbury County
    Lake County
    Lawrence County
    Lincoln County
    Lyman County
    Marshall County
    McCook County
    McPherson County
    Meade County
    Mellette County
    Miner County
    Minnehaha County
    Moody County
    Pennington County
    Perkins County
    Potter County
    Roberts County
    Sanborn County
    Shannon County
    Spink County
    Stanley County
    Sully County
    Todd County
    Tripp County
    Turner County
    Union County
    Walworth County
    Yankton County
    Ziebach County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    44. In Sec. 81.343, the table entitled ``Tennessee-Ozone'' is
revised to read as follows:


Sec. 81.343  Tennessee.

* * * * *

[[Page 31080]]



                                                           Tennessee--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
            Designation area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Jefferson County Area:
    Jefferson County....................     11/15/90  Unclassifiable/Attainment................     11/15/90
Memphis Area:
    Shelby County.......................      2/16/95  Attainment
Rest of State...........................  ...........  1 hr.std.N.A.\2\
    Anderson County
    Bedford County
    Benton County
    Bledsoe County
    Blount County
    Bradley County
    Campbell County
    Cannon County
    Carroll County
    Carter County
    Cheatham County
    Chester County
    Claiborne County
    Clay County
    Cocke County
    Coffee County
    Crockett County
    Cumberland County
    Davidson County
    Decatur County
    DeKalb County
    Dickson County
    Dyer County
    Fayette County
    Fentress County
    Franklin County
    Gibson County
    Giles County
    Grainger County
    Greene County
    Grundy County
    Hamblen County
    Hamilton County
    Hancock County
    Hardeman County
    Hardin County
    Hawkins County
    Haywood County
    Henderson County
    Henry County
    Hickman County
    Houston County
    Humphreys County
    Jackson County
    Johnson County
    Knox County
    Lake County
    Lauderdale County
    Lawrence County
    Lewis County
    Lincoln County
    Loudon County
    Macon County
    Madison County
    Marion County
    Marshall County
    Maury County
    McMinn County
    McNairy County
    Meigs County
    Monroe County
    Montgomery County
    Moore County
    Morgan County
    Obion County

[[Page 31081]]


    Overton County
    Perry County
    Pickett County
    Polk County
    Putnam County
    Rhea County
    Roane County
    Robertson County
    Rutherford County
    Scott County
    Sequatchie County
    Sevier County
    Smith County
    Stewart County
    Sullivan County
    Sumner County
    Tipton County
    Trousdale County
    Unicoi County
    Union County
    Van Buren County
    Warren County
    Washington County
    Wayne County
    Weakley County
    White County
    Williamson County
    Wilson County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    45. In Sec. 81.344, the table entitled ``Texas-Ozone'' is revised
to read as follows:


Sec. 81.344  Texas.

* * * * *

                                                             Texas--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated Area             ---------------------------------------------------------------------------------------------------------------
                                            Date\1\                       Type                      Date\1\                       Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Beaumont/Port Arthur Area:
    Hardin County.......................     11/15/90   Nonattainment...........................       6/3/96   Moderate.
    Jefferson County....................     11/15/90   Nonattainment...........................       6/3/96   Moderate.
    Orange County.......................     11/15/90   Nonattainment...........................       6/3/96   Moderate.
Dallas-Fort Worth Area:
    Collin County.......................     11/15/90   Nonattainment...........................      3/20/98   Serious.
    Dallas County.......................     11/15/90   Nonattainment...........................      3/20/98   Serious.
    Denton County.......................     11/15/90   Nonattainment...........................      3/20/98   Serious.
    Tarrant County......................     11/15/90   Nonattainment...........................      3/20/98   Serious.
El Paso Area:
    El Paso County......................     11/15/90   Nonattainment...........................     11/15/90   Serious.
Houston-Galveston-Brazoria Area:
    Brazoria County.....................     11/15/90   Nonattainment...........................     11/15/90   Severe-17.
    Chambers County.....................     11/15/90   Nonattainment...........................     11/15/90   Severe-17.
    Fort Bend County....................     11/15/90   Nonattainment...........................     11/15/90   Severe-17.
    Galveston County....................     11/15/90   Nonattainment...........................     11/15/90   Severe-17.
    Harris County.......................     11/15/90   Nonattainment...........................     11/15/90   Severe-17.
    Liberty County......................     11/15/90   Nonattainment...........................     11/15/90   Severe-17.
    Montgomery County...................     11/15/90   Nonattainment...........................     11/15/90   Severe-17.
    Waller County.......................     11/15/90   Nonattainment...........................     11/15/90   Severe-17.
Longview Area:
    Gregg County........................     11/15/90   Unclassifiable/Attainment...............     11/15/90  .........................................
Victoria Area:
    Victoria County.....................  ...........  1 hr.std.N.A.\2\
AQCR 022 Shreveport-Texarkana-Tyler.....  ...........  1 hr.std.N.A.\2\
    Anderson County
    Bowie County

[[Page 31082]]


    Camp County
    Cass County
    Cherokee County
    Delta County
    Franklin County
    Harrison County
    Henderson County
    Hopkins County
    Lamar County
    Marion County
    Morris County
    Panola County
    Rains County
    Red River County
    Rusk County
    Smith County
    Titus County
    Upshur County
    Van Zandt County
    Wood County
AQCR 106 S Louisiana-SE Texas Interstate  ...........  1 hr.std.N.A.\2\
 (Remainder of).
    Angelina County
    Houston County
    Jasper County
    Nacogdoches County
    Newton County
    Polk County
    Sabine County
    San Augustine County
    San Jacinto County
    Shelby County
    Trinity County
    Tyler County
    Walker County
AQCR 153 El Paso-Las Cruces-Alamogordo..  ...........  1 hr.std.N.A.\2\
    Brewster County
    Culberson County
    Hudspeth County
    Jeff Davis County
    Presidio County
AQCR 210 Abilene-Wichita Falls            ...........  1 hr.std.N.A.\2\
 Intrastate.
    Archer County
    Baylor County
    Brown County
    Callahan County
    Childress County
    Clay County
    Coke County
    Coleman County
    Comanche County
    Concho County
    Cottle County
    Eastland County
    Fisher County
    Foard County
    Hardeman County
    Haskell County
    Jack County
    Jones County
    Kent County
    Knox County
    McCulloch County
    Menard County
    Mitchell County
    Montague County
    Nolan County
    Runnels County
    Scurry County
    Shackelford County
    Stephens County

[[Page 31083]]


    Stonewall County
    Taylor County
    Throckmorton County
    Wichita County
    Wilbarger County
    Young County
AQCR 211 Amarillo-Lubbock Intrastate....  ...........  1 hr.std.N.A.\2\
    Armstrong County
    Bailey County
    Briscoe County
    Carson County
    Castro County
    Cochran County
    Collingsworth County
    Crosby County
    Dallam County
    Deaf Smith County
    Dickens County
    Donley County
    Floyd County
    Garza County
    Gray County
    Hale County
    Hall County
    Hansford County
    Hartley County
    Hemphill County
    Hockley County
    Hutchinson County
    King County
    Lamb County
    Lipscomb County
    Lubbock County
    Lynn County
    Moore County
    Motley County
    Ochiltree County
    Oldham County
    Parmer County
    Potter County
    Randall County
    Roberts County
    Sherman County
    Swisher County
    Terry County
    Wheeler County
    Yoakum County
AQCR 212 Austin-Waco Intrastate.........  ...........  1 hr.std.N.A.\2\
    Bastrop County
    Bell County
    Blanco County
    Bosque County
    Brazos County
    Burleson County
    Burnet County
    Caldwell County
    Coryell County
    Falls County
    Fayette County
    Freestone County
    Grimes County
    Hamilton County
    Hays County
    Hill County
    Lampasas County
    Lee County
    Leon County
    Limestone County
    Llano County
    Madison County

[[Page 31084]]


    McLennan County
    Milam County
    Mills County
    Robertson County
    San Saba County
    Travis County
    Washington County
    Williamson County
AQCR 213 Brownsville-Laredo Intrastate..  ...........  1 hr.std.N.A.\2\
    Cameron County
    Hidalgo County
    Jim Hogg County
    Starr County
    Webb County
    Willacy County
    Zapata County
AQCR 214 Corpus Christi-Victoria          ...........  1 hr.std.N.A.\2\
 Intrastate (Remainder of).
    Jackson County
    Jim Wells County
    Kenedy County
    Kleberg County
    Lavaca County
    Live Oak County
    McMullen County
    Refugio County
    San Patricio County
    Aransas County
    Bee County
    Brooks County
    Calhoun County
    De Witt County
    Duval County
    Goliad County
AQCR 214 Corpus Christi-Victoria          ...........  1 hr.std.N.A.\2\
 Intrastate (part).
    Nueces County
AQCR 215 Metro Dallas-Fort Worth          ...........   1 hr.std.N.A.\2\
 Intrastate (Remainder of).
    Cooke County
    Ellis County
    Erath County
    Fannin County
    Grayson County
    Hood County
    Hunt County
    Johnson County
    Kaufman County
    Navarro County
    Palo Pinto County
    Parker County
    Rockwall County
    Somervell County
    Wise County
AQCR 216 Metro Houston-Galveston          ...........  1 hr.std.N.A.\2\
 Intrastate (Remainder of).
    Austin County
    Colorado County
    Matagorda County
    Wharton County
AQCR 217 Metro San Antonio Intrastate     ...........  1 hr.std.N.A.\2\
 (part).
    Bexar County
AQCR 217 Metro San Antonio Intrastate     ...........  1 hr.std.N.A.\2\
 (Remainder of).
    Atascosa County
    Bandera County
    Comal County
    Dimmit County
    Edwards County
    Frio County
    Gillespie County
    Gonzales County
    Guadalupe County

[[Page 31085]]


    Karnes County
    Kendall County
    Kerr County
    Kimble County
    Kinney County
    La Salle County
    Mason County
    Maverick County
    Medina County
    Real County
    Uvalde County
    Val Verde County
    Wilson County
    Zavala County
AQCR 218 Midland-Odessa-San Angelo        ...........  1 hr.std.N.A.\2\
 Intrastate (part).
    Ector County
AQCR 218 Midland-Odessa-San Angelo        ...........  1 hr.std.N.A.\2\
 Intrastate (Remainder of).
    Andrews County
    Borden County
    Crane County
    Crockett County
    Dawson County
    Gaines County
    Glasscock County
    Howard County
    Irion County
    Loving County
    Martin County
    Midland County
    Pecos County
    Reagan County
    Reeves County
    Schleicher County
    Sterling County
    Sutton County
    Terrell County
    Tom Green County
    Upton County
    Ward County
    Winkler County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    46. In Sec. 81.345, the table entitled ``Utah--Ozone'' is revised
to read as follows:


Sec. 81.345  Utah.

* * * * *

                                                              Utah--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Salt Lake City Area:
    Davis County........................  ...........  1 hr.std.N.A.\2\
    Salt Lake County....................  ...........  1 hr.std.N.A.\2\
Rest of State...........................  ...........  1 hr.std.N.A.\2\
    Beaver County
    Box Elder County
    Cache County
    Carbon County
    Daggett County
    Duchesne County
    Emergy County
    Garfield County
    Iron County
    Juab County

[[Page 31086]]


    Kane County
    Millard County
    Morgan County
    Piute County
    Rich County
    San Juan County
    Sanpete County
    Sevier County
    Summit County
    Tooele County
    Uintah County
    Utah County
    Wasatch County
    Washington County
    Wayne County
    Weber County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    47. In Sec. 81.346, the table entitled ``Vermont--Ozone'' is
revised to read as follows:


Sec. 81.346  Vermont.

* * * * *

                                                            Vermont--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
AQCR 159 Champlain Calley Interstate      ...........  1 hr.std.N.A.\2\
 (part).
    Addison County
    Chittenden County
AQCR 159 Champlain Calley Interstate      ...........  1 hr.std.N.A.\2\
 Remainder of).
    Franklin County
    Grand Isle County
    Rutland County
AQCR 221 Vermont Intrastate (part)......  ...........  1 hr. std. N.A.\2\
    Windsor County
AQCR 221 Vermont Intrastate (Remainder    ...........  1 hr. std. N.A.\2\
 of) County.
    Bennington County
    Caledonia County
    Essex County
    Lamoille County
    Orange County
    Orleans County
    Washington County
    Windham County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    48. In Sec. 81.347, the table entitled ``Virginia--Ozone'' is
revised to read as follows:


Sec. 81.347  Virginia.

* * * * *

                                                            Virginia--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated Area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
    Norfolk-Virginia Beach-Newport News
     (Hampton Roads) Area:.
    Chesapeake..........................  ...........  1 hr.std.N.A.\2\
    Hampton.............................  ...........  1 hr.std.N.A.\2\
    James City County...................  ...........  1 hr.std.N.A.\2\

[[Page 31087]]


    Newport News........................  ...........  1 hr.std.N.A.\2\
    Norfolk.............................  ...........  1 hr.std.N.A.\2\
    Poquoson............................  ...........  1 hr.std.N.A.\2\
    Portsmouth..........................  ...........  1 hr.std.N.A.\2\
    Suffolk.............................  ...........  1 hr.std.N.A.\2\
    Virginia Beach......................  ...........  1 hr.std.N.A.\2\
    Williamsburg........................  ...........  1 hr.std.N.A.\2\
    York County.........................  ...........  1 hr.std.N.A.\2\
Richmond Area:
    Charles City County (part)..........  ...........  1 hr.std.N.A.\2\
        Beginning at the intersection of
         State Route 156 and the Henrico/
         Charles City County Line,
         proceeding south along State
         Route 5/156 to the intersection
         with State Route 106/156,
         proceeding south along Route
         106/156 to the intersection
         with the Prince George/Charles
         City County line, proceeding
         west along the Prince George/
         Charles City County line to the
         intersection with the
         Chesterfield/Charles City
         County line, proceeding north
         along the Chesterfield/Charles
         City County line to the
         intersection with the Henrico/
         Charles City County line,
         proceeding north along the
         Henrico/Charles City County
         line to State Route 156.
    Chesterfield County.................  ...........  1 hr.std.N.A.\2\
    Colonial Heights....................  ...........  1 hr.std.N.A.\2\
    Hanover County......................  ...........  1 hr.std.N.A.\2\
    Henrico County......................  ...........  1 hr.std.N.A.\2\
    Hopewell............................  ...........  1 hr.std.N.A.\2\
    Richmond............................  ...........  1 hr.std.N.A.\2\
Smyth County Area:
    Smyth County (part).................  ...........  1 hr.std.N.A.\2\
        The portion of White Top
         Mountain above the 4,500 foot
         elevation in Smyth County
         Washington Area:
    Alexandria..........................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Arlington County....................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Fairfax.............................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Fairfax County......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Falls Church........................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Loudoun County......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Manassas............................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Manassas Park.......................     11/15/90  Nonattainment............................     11/15/90  Serious.
    Prince William County...............     11/15/90  Nonattainment............................     11/15/90  Serious.
    Stafford County.....................     11/15/90  Nonattainment............................     11/15/90  Serious.
AQCR 207 Eastern Tennessee--SW Virginia   ...........  1 hr.std.N.A.\2\
 Interstate (Remainder of).
    Bland County
    Bristol
    Buchanan County
    Carroll County
    Dickenson County
    Galax
    Grayson County
    Lee County
    Norton
    Russell County
    Scott County
    Smyth County (part)
    Remainder of county
    Tazewell County
    Washington County
    Wise County
    Wythe County
AQCR 222 Central Virginia Intrastate....  ...........  1 hr.std.N.A.\2\
    Amelia County
    Amherst County
    Appomattox County
    Bedford
    Bedford County
    Brunswick County
    Buckingham County

[[Page 31088]]


    Campbell County
    Charlotte County
    Cumberland County
    Danville
    Franklin County
    Halifax County
    Henry County
    Lunenburg County
    Lynchburg
    Martinsville
    Mecklenburg County
    Nottoway County
    Patrick County
    Pittsylvania County
    Prince Edward County
    South Boston
AQCR 223 Hampton Roads Intrastate         ...........  1 hr.std.N.A.\2\
 (Remainder of).
    Franklin
    Isle Of Wight County
    Southampton County
AQCR 224 NE Virginia Intrastate           ...........  1 hr.std.N.A.\2\
 (Remainder of).
    Accomack County
    Albemarle County
    Caroline County
    Charlottesville
    Culpeper County
    Essex County
    Fauquier County
    Fluvanna County
    Fredericksburg
    Gloucester County
    Greene County
    King and Queen County
    King George County
    King William County
    Lancaster County
    Louisa County
    Madison County
    Mathews County
    Middlesex County
    Nelson County
    Northampton County
    Northumberland County
    Orange County
    Rappahannock County
    Richmond County
    Spotsylvania County
    Westmoreland County
AQCR 225 State Capital Intrastate         ...........  1 hr.std.N.A.\2\
 (Remainder of).
    Charles City County (part)
        Remainder of county
    Dinwiddie County
    Emporia
    Goochland County
    Greensville County
    New Kent County
    Petersburg
    Powhatan County
    Prince George County
    Surry County
    Sussex County
AQCR 226 Valley of Virginia Intrastate..  ...........  1 hr.std.N.A.\2\
    Alleghany County
    Augusta County
    Bath County
    Botetourt County
    Buena Vista
    Clarke County
    Clifton Forge
    Covington

[[Page 31089]]


    Craig County
    Floyd County
    Frederick County
    Giles County
    Harrisonburg
    Highland County
    Lexington
    Montgomery County
    Page County
    Pulaski County
    Radford
    Roanoke
    Roanoke County
    Rockbridge County
    Rockingham County
    Salem
    Shenandoah County
    Staunton
    Warren County
    Waynesboro
    Winchester
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    49. In Sec. 81.348, the table entitled ``Washington-Ozone'' is
revised to read as follows:


Sec. 81.348  Washington.

* * * * *

                                                           Washington-Ozone (1-hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Portland--Vancouver AQMA Area
    Clark County (part).................  ...........  .........................................  ...........  .........................................
        Air Quality Maintenance Area....  ...........  1 hr.std.N.A.\2\
Seattle-Tacoma Area

[[Page 31090]]


    The following boundary includes all   ...........  1 hr.std.N.A.\2\
     of Pierce County, and all of King
     County except a small portion on
     the north-east corner and the
     western portion of Snohomish
     County: Starting at the mouth of
     the Nisqually river extend
     northwesterly along the Pierce
     County line to the southernmost
     point of the west couty line of
     King County; thence northerly along
     the county line to the southermost
     point of the west county ling of
     Snohomish County; thence ortherly
     along the county line to the
     intersection with SR 532; thence
     easterly along the north line of SR
     532 to the intersection of I-5,
     continuing east along the same road
     now identified as Henning Rd., to
     the intersection with SR 9 at
     Bryant; thence continuing easterly
     on Bryant East Rd. and Rock Creek
     Rd., also identified as Grandview
     Rd., approximately 3 miles to the
     point at which it is crossed by the
     existing BPA electrical
     transmission line; thence
     southeasterly along the BPA
     transmission line approximately 8
     miles to point of the crossing of
     the south fork of the Stillaguamish
     River; thence continuing in a
     southeasterly direction in a
     meander line following the bed of
     the River to Jordan Road; southerly
     along Jordan Road to the north city
     limits of Granite Falls; thence
     following the north and east city
     limits to 92nd St. N.E. and Menzel
     Lake Rd.; thence south-
     southeasterly along the Menzel Lake
     Rd. and the Lake Roesiger Rd. a
     distance of approximately 6 miles
     to the northernmost point of Lake
     Roesiger; thence southerly along a
     meander line following the middle
     of the Lake and Roesiger Creek to
     Woods Creek; thence southerly along
     a meader line following the bed of
     the Creek approximately 6 miles to
     the point the Creek is crossed by
     the existing BPA electrical
     transmission line; thence easterly
     along the BPA transmission line
     approximately 0.2 miles; thence
     southerly along the BPA Chief
     Joseph-Covington electrical
     transmission line approximately 3
     miles to the north line of SR 2;
     thence southeasterly along SR 2 to
     the intersection with the east
     county line of King County; thence
     south along the county line to the
     northernmost point of the east
     county line of Pierce County;
     thence along the county line to the
     point of beginning at the mouth of
     the Nisqually River.
AQCR 062 E Washington-N Idaho Interstate  ...........  1 hr.std.N.A.\2\
 (part).
    Spokane County
AQCR 062 E Washington-N Idaho Interstate  ...........  1 hr.std.N.A.\2\
 (Remainder of).
    Adams County
    Asotin County
    Columbia County
    Garfield County
    Grant County
    Lincoln County
    Whitman County
AQCR 193 Portland Interstate (Remainder   ...........  1 hr.std.N.A.\2\
 of).
    Clark County (part)
        Remainder of County
    Cowlitz County
    Lewis County
    Skamania County
    Wahkiakum County
AQCR 227 Northern Washington Intrastate.  ...........  1 hr.std.N.A.\2\
    Chelan County
    Douglas County
    Ferry County
    Okanogan County
    Pend Oreille County
    Stevens County
AQCR 228 Olympic,-Northwest Washington    ...........  1 hr.std.N.A.\2\
 Intrastate.
    Clallam County
    Grays Harbor County

[[Page 31091]]


    Island County
    Jefferson County
    Mason County
    Pacific County
    San Juan County
    Skagit County
    Thurston County
    Whatcom County
AQCR 229 Puget Sound Intrastate           ...........  1 hr.std.N.A.\2\
 (Remainder of).
    King County (Part)
    Remainder of County
    Kitsap County
    Snohomish County (Part)
        Remainer of County
AQCR 230 South Central Washington         ...........  1 hr.std.N.A.\2\
 Intrastate.
    Benton County
    Franklin County
    Kittitas County
    Klickitat County
    Walla Walla County
    Yakima County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    50. In Sec. 81.349, the table entitled ``West Virginia-Ozone'' is
revised to read as follows:


Sec. 81.349  West Virginia.

* * * * *

                                                         West Virginia--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Charleston Area:
    Kanawha County......................  ...........  1 hr. std. N.A.\2\
    Putnam County.......................  ...........  1 hr. std. N.A.\2\
Greenbrier Area:
    Greenbrier County...................  ...........  1 hr. std. N.A.\2\
Huntington-Ashland Area:
    Cabell County.......................  ...........  1 hr. std. N.A.\2\
    Wayne County........................  ...........  1 hr. std. N.A.\2\
Parkersburg-Marietta Area:
    Wood County.........................  ...........  1 hr. std. N.A.\2\
    Rest of State.......................  ...........  1 hr. std. N.A.\2\
    Barbour County
    Berkeley County
    Boone County
    Braxton County
    Brooke County
    Calhoun County
    Clay County
    Doddridge County
    Fayette County
    Gilmer County
    Grant County
    Hampshire County
    Hancock County
    Hardy County
    Harrison County
    Jackson County
    Jefferson County
    Lewis County
    Lincoln County
    Logan County
    Marion County
    Marshall County
    Mason County

[[Page 31092]]


    McDowell County
    Mercer County
    Mineral County
    Mingo County
    Monongalia County
    Monroe County
    Morgan County
    Nicholas County
    Ohio County
    Pendleton County
    Pleasants County
    Pocahontas County
    Preston County
    Raleigh County
    Randolph County
    Ritchie County
    Roane County
    Summers County
    Taylor County
    Tucker County
    Tyler County
    Upshur County
    Webster County
    Wetzel County
    Wirt County
    Wyoming County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    51. In Sec. 81.350, the table entitled ``Wisconsin--Ozone'' is
revised to read as follows:


Sec. 81.350  Wisconsin.

* * * * *

                                                           Wisconsin--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Door County Area:
    Door County.........................       1/6/92  Nonattainment............................       1/6/92  Rural Transport (Marginal).
Kewaunee County Area:
    Kewaunee County.....................  ...........  1 hr.std.N.A.\2\
Manitowoc County Area:
    Manitowoc County....................       1/6/92  Nonattainment............................       1/6/92  Moderate.
Milwaukee-Racine Area:
    Kenosha County......................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
    Milwaukee County....................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
    Ozaukee County......................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
    Racine County.......................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
    Washington County...................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
    Waukesha County.....................     11/15/90  Nonattainment............................     11/15/90  Severe-17.
Sheboygan County Area:
    Sheboygan County....................  ...........  1 hr.std.N.A.\2\
Walworth County Area:
    Walworth County.....................  ...........  1 hr.std.N.A.\2\
Adams County............................  ...........  1 hr.std.N.A.\2\
Ashland County..........................  ...........  1 hr.std.N.A.\2\
Barron County...........................  ...........  1 hr.std.N.A.\2\
Bayfield County.........................  ...........  1 hr.std.N.A.\2\
Brown County............................  ...........  1 hr.std.N.A.\2\
Buffalo County..........................  ...........  1 hr.std.N.A.2
Burnett County..........................  ...........  1 hr.std.N.A.\2\
Calumet County..........................  ...........  1 hr.std.N.A.\2\
Chippewa County.........................  ...........  1 hr.std.N.A.\2\
Clark County............................  ...........  1 hr.std.N.A.\2\
Columbia County.........................  ...........  1 hr.std.N.A.\2\

[[Page 31093]]


Crawford County.........................  ...........  1 hr.std.N.A.\2\
Dane County.............................  ...........  1 hr.std.N.A.\2\
Dodge County............................  ...........  1 hr.std.N.A.\2\
Douglas County..........................  ...........  1 hr.std.N.A.\2\
Dunn County.............................  ...........  1 hr.std.N.A.\2\
Eau Claire County.......................  ...........  1 hr.std.N.A.\2\
Florence County.........................  ...........  1 hr.std.N.A.\2\
Fond du Lac County......................  ...........  1 hr.std.N.A.\2\
Forest County...........................  ...........  1 hr.std.N.A.\2\
Grant County............................  ...........  1 hr.std.N.A.\2\
Green County............................  ...........  1 hr.std.N.A.\2\
Green Lake County.......................  ...........  1 hr.std.N.A.\2\
Iowa County.............................  ...........  1 hr.std.N.A.\2\
Iron County.............................  ...........  1 hr.std.N.A.\2\
Jackson County..........................  ...........  1 hr.std.N.A.\2\
Jefferson County........................  ...........  1 hr.std.N.A.\2\
Juneau County...........................  ...........  1 hr.std.N.A.\2\
La Crosse County........................  ...........  1 hr.std.N.A.\2\
Lafayette County........................  ...........  1 hr.std.N.A.\2\
Langlade County.........................  ...........  1 hr.std.N.A.\2\
Lincoln County..........................  ...........  1 hr.std.N.A.\2\
Marathon County.........................  ...........  1 hr.std.N.A.\2\
Marinette County........................  ...........  1 hr.std.N.A.\2\
Marquette County........................  ...........  1 hr.std.N.A.\2\
Menominee County........................  ...........  1 hr.std.N.A.\2\
Monroe County...........................  ...........  1 hr.std.N.A.\2\
Oconto County...........................  ...........  1 hr.std.N.A.\2\
Oneida County...........................  ...........  1 hr.std.N.A.\2\
Outagamie County........................  ...........  1 hr.std.N.A.\2\
Pepin County............................  ...........  1 hr.std.N.A.\2\
Pierce County...........................  ...........  1 hr.std.N.A.\2\
Polk County.............................  ...........  1 hr.std.N.A.\2\
Portage County..........................  ...........  1 hr.std.N.A.\2\
Price County............................  ...........  1 hr.std.N.A.\2\
Richland County.........................  ...........  1 hr.std.N.A.\2\
Rock County.............................  ...........  1 hr.std.N.A.\2\
Rusk County.............................  ...........  1 hr.std.N.A.\2\
St. Croix County........................  ...........  1 hr.std.N.A.\2\
Sauk County.............................  ...........  1 hr.std.N.A.\2\
Sawyer County...........................  ...........  1 hr.std.N.A.\2\
Shawano County..........................  ...........  1 hr.std.N.A.\2\
Taylor County...........................  ...........  1 hr.std.N.A.\2\
Trempealeau County......................  ...........  1 hr.std.N.A.\2\
Vernon County...........................  ...........  1 hr.std.N.A.\2\
Vilas County............................  ...........  1 hr.std.N.A.\2\
Washburn County.........................  ...........  1 hr.std.N.A.\2\
Waupaca County..........................  ...........  1 hr.std.N.A.\2\
Waushara County.........................  ...........  1 hr.std.N.A.\2\
Winnebago County........................  ...........  1 hr.std.N.A.\2\
Wood County.............................  ...........  1 hr.std.N.A.\2\
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    52. In Sec. 81.351, the table entitled ``Wyoming--Ozone'' is
revised to read as follows:


Sec. 81.351  Wyoming.

* * * * *

                                                            Wyoming--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Statewide...............................  ...........  1 hr.std.N.A.\2\
    Albany County
    Big Horn County
    Campbell County
    Carbon County

[[Page 31094]]


    Converse County
    Crook County
    Fremont County
    Goshen County
    Hot Springs County
    Johnson County
    Laramie County
    Lincoln County
    Natrona County
    Niobrara County
    Park County
    Platte County
    Sheridan County
    Sublette County
    Sweetwater County
    Teton County
    Uinta County
    Washakie County
    Weston County
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    53. In Sec. 81.352, the table entitled ``American Samoa--Ozone'' is
revised to read as follows:


Sec. 81.352  American Samoa.

* * * * *

                                                         American Samoa--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Statewide...............................  ...........  1 hr.std.N.A.\2\
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    54. In Sec. 81.353, the table entitled ``Guam-Ozone'' is revised to
read as follows:


Sec. 81.353  Guam.

* * * * *

                                                              Guam--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Statewide...............................  ...........  1 hr.std.N.A.\2\
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    55. In Sec. 81.354, the table entitled ``Northern Mariana Islands-
Ozone'' is revised to read as follows:


Sec. 81.354  Northern Mariana Islands.

* * * * *

                                                    Northern Mariana Islands--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Whole State.............................  ...........  1 hr.std.N.A.\2\
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.

[[Page 31095]]


\2\ 1 hour standard Not Applicable.

* * * * *
    56. In Sec. 81.355, the table entitled ``Puerto Rico-Ozone'' is
revised to read as follows:


Sec. 81.355  Puerto Rico.

* * * * *

                                                          Puerto Rico--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Statewide...............................  ...........  1 hr.std.N.A.\2\
    Adjuntas Municipio
    Aguada Municipio
    Aguadilla Municipio
    Aguas Buenas Municipio
    Aibonito Municipio
    Anasco Municipio
    Arecibo Municipio
    Arroyo Municipio
    Barceloneta Municipio
    Barranquitas Munic.
    Bayamon County
    Cabo Rojo Municipio
    Caguas Municipio
    Camuy Municipio
    Canovanas Municipio
    Carolina Municipio
    Catano County
    Cayey Municipio
    Ceiba Municipio
    Ciales Municipio
    Cidra Municipio
    Coamo Municipio
    Comerio Municipio
    Corozal Municipio
    Culebra Municipio
    Dorado Municipio
    Fajardo Municipio
    Florida Municipio
    Guanica Municipio
    Guayama Municipio
    Guayanilla Municipio
    Guaynabo County
    Gurabo Municipio
    Hatillo Municipio
    Hormigueros Municipio
    Humacao Municipio
    Isabela Municipio
    Jayuya Municipio
    Juana Diaz Municipio
    Juncos Municipio
    Lajas Municipio
    Lares Municipio
    Las Marias Municipio
    Las Piedras Municipio
    Loiza Municipio
    Luquillo Municipio
    Manati Municipio
    Maricao Municipio
    Maunabo Municipio
    Mayaguez Municipio
    Moca Municipio
    Morovis Municipio
    Naguabo Municipio
    Naranjito Municipio
    Orocovis Municipio
    Patillas Minicipio
    Penuelas Municipio
    Ponce Municipio
    Quebradillas Municipio
    Rincon Municipio
    Rio Grande Municipio

[[Page 31096]]


    Sabana Grande Municipio
    Salinas Municipio
    San German Municipio
    San Juan Municipio
    San Lorenzo Municipio
    San Sebastian Municipio
    Santa Isabel Municipio
    Toa Alta Municipio
    Toa Baja County
    Trujillo Alto Municipio
    Utuado Municipio
    Vega Alta Municipio
    Vega Baja Municipio
    Vieques Municipio
    Villalba Municipio
    Yabucoa Municipio
    Yauco Municipio
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
    57. In Sec. 81.356, the table entitled ``Virgin Islands-Ozone'' is
revised to read as follows:


Sec. 81.356  Virgin Islands.

* * * * *

                                                         Virgin Islands--Ozone (1-Hour Standard)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                Designation                                           Classification
             Designated area             ---------------------------------------------------------------------------------------------------------------
                                            Date \1\                      Type                      Date \1\                      Type
--------------------------------------------------------------------------------------------------------------------------------------------------------
Statewide...............................  ...........  1 hr.std.N.A.\2\
    St. Croix
    St. John
    St. Thomas
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ This date is June 5, 1998, unless otherwise noted.
\2\ 1 hour standard Not Applicable.

* * * * *
[FR Doc. 98-14581 Filed 6-4-98; 8:45 am]
BILLING CODE 6560-50-P







 
 


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