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Cars and Light Trucks
This page provides information about controlling emissions from passenger cars and light trucks. This includes consumer information, vehicle standards and regulations, certification and compliance, fuel economy, and test data.
On this page
- Consumer Information
- Regulations and Related Documents
- High Occupancy Vehicle Exemption Proposed Rule
- Test Procedures
- CAP 2000 (Compliance Assurance Program)
- Related Links
On other pages
- On-Board Diagnostics
- Vehicle Service Information
- Vehicle Programs and Compliance Guidance Letters
- Verify: Engine and Vehicle Compliance System
- Motor Vehicle and Engine Compliance Program Fees Information
- Importing Vehicles and Engines
- Light-Duty Automotive Technology and Fuel Economy Trends: 1975 Through Present
- Light Duty Greenhouse Gas Standards and Compliance Information
You will need Adobe Acrobat Reader to view the Adobe PDF files on this page. See EPA's PDF page for more information about getting and using the free Acrobat Reader.
Consumer Information
-
Green Racing:
- Green Racing 2011 Press Kit (EPA-420-C-11-901, February 2011)
The press kit includes: facts about Green Racing, frequently asked questions, photos and videos. - Green Racing Initiative | PDF Version (4 pp, 637K, EPA420-F-10-058, November 2010)
- Green Racing Update: The 2010 ALMS Green Challenge Final Race and Championship Awards | PDF Version (2 pp, 1.0MB, EPA-420-F-10-057, November 2010)
- Green Racing Update: The 2009 ALMS Green Challenge Championship Awards | PDF Version (2 pp, 300K, EPA-420-F-10-012, February 2010)
- Green Racing Update: The 2008 ALMS Petit Le Mans Green Challenge™ Race | PDF Version (3 pp, 629K, EPA-420-F-08-038, December 2008)
- Green Racing 2011 Press Kit (EPA-420-C-11-901, February 2011)
- Do You Drive a 1996 or Newer Car or Light Truck? (PDF) (4 pp, 444K, EPA420-F-02-016, August 2002)
- On-Board Diagnostics: Frequently Asked Questions (PDF) (2 pp, 39K, EPA420-F-02-014, August 2002)
- Emission Warranty Info: If you just failed an emissions test
- 1981-1994 Model Year (8 pp, 19K, TXT file, EPA420-F-95-014, December 1995)
- 1995 and Newer Model Years | PDF Version (10 pp, 145K, EPA420-F-09-048, October 2009)
Regulations & Related Documents
- As part of the analysis conducted in the development of regulations, EPA estimates both the direct and indirect costs associated with its rules.
The indirect costs of new automotive technologies are often estimated using multipliers applied to direct manufacturing costs. This report provides updated estimates of indirect cost multipliers that vary with the complexity of the new technology and time frame.
This report has been peer-reviewed in compliance with EPA policy. The Peer Review Report contains the reviewers’ comments and description of how they were addressed in the final report.
- Automobile Industry Retail Price Equivalent and Indirect Cost Multipliers (PDF) ( 71 pp, 680K, EPA420-R-09-003, March 2009)
- Peer Review for the RTI Report, Automobile Industry Retail Price Equivalent and Indirect Cost Multipliers (PDF) (40 pp, 390K, EPA-420-R-09-004, June 2009)
- High Occupancy Vehicle Exemption Proposed Rule
- Control of Hazardous Air Pollutants from Mobile Sources
- Federal and California Exhaust and Evaporative Emission Standards for Light-Duty Vehicles and Light-Duty Trucks This includes Tier 0 and Tier 1 federal standards.
- Tier 2 Emission Standards and Gasoline Sulfur Program
- National Low Emission Vehicle Program and Ozone Transport Commission
- CAP 2000 (Compliance Assurance Program)
- Federal Test Procedure Revisions
- Durability
- Evaporative Emissions
- On-Board Refueling Vapor Recovery
High Occupancy Vehicle Exemption Proposed Rule (May 24, 2007)
The 2005 transportation act known as “SAFETEA-LU” directs EPA to advise states on defining low emission and energy efficient vehicles that may use a High Occupancy Vehicle (HOV) lane with fewer than the required number of occupants. This action guides states that seek an exemption from existing HOV requirements for vehicles certified as “low emission and energy efficient.” SAFETEA-LU was originally scheduled to sunset on September 30, 2009 but Congress extended it through 2010 as part of the Hiring Incentives to Restore Employment (HIRE) Act which was signed into law on March 18.
EPA has issued a notice of proposed rulemaking that would establish criteria for exemptions to the current HOV lane requirements. EPA has established a public docket for this action (Docket No. EPA-HQ-OAR-2005 0173). To view the docket, go to www.regulations.gov. (NOTE: To access the docket from this link, select Advanced Search, then Docket Search, and then type EPA-HQ-OAR-2005 0173 as the Docket ID.)
- Fact Sheet | PDF Version (3 pp, 99K, EPA420-F-07-042, May 2007)
- Notice of Proposed Rulemaking: SAFETEA-LU High Occupancy Vehicle Facilities Exemption Rule
- Technical Support Document (PDF) (45 pp, 480K, EPA420-D-07-005, May 2007)
- Updated Draft List of Eligible Low Emission and Energy-Efficient Vehicles Using the Hybrid-to-Gasoline Vehicle Comparison Methodology as of June 2, 2010 (PDF) (7 pp, 129K, EPA-420-D-10-002, June 2010)
Contact: Holly Pugliese (pugliese.holly@epa.gov), phone: 734-214-4288.
The U.S. Department of Transportation is responsible for oversight of HOV lanes. For more information, please visit http://ops.fhwa.dot.gov/freewaymgmt/hov.htm
Test Procedures
Final Technical Amendments – Procedures for Testing Highway and Nonroad Engines and Omnibus Technical Amendments (July 13, 2005)
- Fact Sheet: Regulatory Announcement: Changed Test Procedures for Nonroad Engines and Heavy-Duty Highway Engines | PDF Version (4 pp, 134K, EPA420-F-05-036, July 2005)
- Final Rule (July 13, 2005):
- Pages 40419-40468 | PDF Version (50 pp, 949K)
- Pages 40469-40518 | PDF Version (50 pp, 938K)
- Pages 40519-40568 | PDF Version (50 pp, 6.1MB)
- Pages 40569-40614 | PDF Version (50 pp, 1.81MB)
- Technical Support Document and Summary & Analysis of Comments (PDF) (115 pp, 1663K, EPA420-R-05-008, June 2005)
Proposed Technical Amendments - Test Procedures for Testing Highway and Nonroad Engines and Omnibus Technical Amendments
- Fact Sheet: Proposed Changes to Test Procedures for Nonroad Engines and Heavy-Duty Highway Engines (PDF) (3 pp, 104K, EPA420-F-04-046, August 2004)
- Federal Register Notice: Test Procedures for Testing
Highway and Nonroad Engines and Omnibus Technical Amendments
- Entire Document (171 pp, 1.8MB)
- Technical Support Document: Test Procedures for Highway and Nonroad Engines and Omnibus Technical Amendments (PDF) (70 pp, 808K, EPA420-D-04-004, August 2004)
CAP 2000 (Compliance Assurance Program)
Final Rule and Supplemental Notice for Durability Procedures for New Light-Duty Vehicles, Light-Duty Trucks, and Heavy-Duty Vehicles
- Final Rule: Emission Durability Procedures for New Light-Duty Vehicles, Light-Duty Trucks and Heavy-Duty Vehicles (signed December 29, 2005)
- Final Rule | PDF Version (156 pp, 575K, January 17, 2006)
- Fact Sheet: Final
Rule for Emissions Durability Test Procedures (PDF) (3 pp, 33K, EPA420-F-05-061, December 2005)
More information about Durability.
- Supplemental Notice of Proposed Rule: Component Durability Procedures for New Light-Duty Vehicles, Light-Duty Trucks and Heavy-Duty Vehicles (signed December 29, 2005)*
- Supplemental Notice of Proposed Rule | PDF Version (66 pp, 187K, January 17, 2006)
- Fact Sheet: Supplemental Notice of Proposed Rule (PDF) (2 pp, 33K, EPA420-F-05-062, December 2005)
On March 16, 2004, the EPA Administrator signed a proposed regulation that instructs automotive manufacturers how to conduct the durability procedures used to predict the useful life emissions of new vehicles. This rulemaking fulfills a court mandate issued on October 22, 2002, by the United States Court of Appeals for the District of Columbia Circuit that ordered EPA to issue new emissions durability regulations. The following documents relate to the durability proposed rulemaking. Please note that the Preamble and Regulations have not yet been published in the Federal Register, and are subject to editorial changes by the Federal Register office.
- Proposed Preamble and Regulations (PDF) (190 pp, 415K)
- Proposed Technical Support Document (PDF) (5 pp, 30K) and Attachments (PDF) (152 pp, 7.3MB)
- EPA Fact Sheet (3 pp, 104K, EPA420-F-04-013, January 2004)
On August 23, 2001 the Administrator issued a denial to the Ethyl Corporation's request to reconsider the CAP 2000 regulation. The Administrator has also denied two other Ethyl petitions to reconsider a Heavy Duty gasoline rule and an OBD/IM rule. The denial document and the cover letter from the Administrator to Kevin Fast, Counsel for Ethyl Corp. are available below:
- Cover Letter (PDF) (1 page, 58K, August 23, 2001)
- EPA Response Document to Ethyl Petitions (PDF) (88 pp, 116K)
These and other documents relating to this petition may also be found at EPA's Air Docket #A-96-50, Room M-1500 (mail code 6102), 401 M St. SW, Washington, D.C. 20460. The docket is open from 8:30 a.m. until 5:30 p.m. weekdays. The docket may also be reached by telephone at (202) 260-7548. As provided in 40 CFR Part 2, a reasonable fee may be charged by EPA for photocopying.
- On December 17, 1999, EPA published a Federal Register Notice extending the comment period for accepting comments on the Ethyl petition regarding CAP 2000 to January 14, 2000.
- On November 5, 1999, EPA published a notice in the Federal Register requesting comments on the Ethyl petition to reconsider the CAP 2000 regulation. Comments must be submitted by December 20, 1999 to EPA's Air Docket number A-96-50, Room M-1500, 401 M Street SW, Washington DC 20460.
- Petition for Reconsideration of the CAP 2000 Rule (PDF) (9 pp, 601K, May 4 1999)
This petition was filed before EPA Administrator by the Ethyl Corporation in August, 1999. Other documents relating to this petition may be found at EPA's Air Docket #A-96-50, Room M-1500 (mail code 6102), 401 M St. SW, Washington, DC 20460. The docket is open from 8:30 a.m. until 5:30 p.m. weekdays. The docket may also be reached by telephone at (202) 260-7548. As provided in 40 CFR part 2, a reasonable fee may be charged by EPA for photocopying.
CAP 2000 Final Rule was published in the Federal register on May 4, 1999.
- Fact Sheet (PDF) (3 pp, 13K, EPA420-F-99-005, March 1999)
- Final Rule (PDF) (72 pp, 575K, May 4, 1999)
Control of Air Pollution From New Motor Vehicles; Compliance programs for new light-duty vehicles and light-duty trucks. Notice of Proposed Rulemaking, signed 7/15/98
- Fact Sheet (PDF) (3pp, 13K, EPA420-F-98-016, April 1998)
- Summary (1 pp, 3K, TXT file, July 15, 1998)
- Preamble (PDF) (146 pp, 210K)
- Correction to "CAP 2000" Preamble: Please note that in section IV.B of the CAP 2000 Preamble (Public Participation-Public Hearing) the docket number given is incorrect. The correct docket number is "A-96-50" (rather than A-96-32). Please refer to docket A-96-50 when submitting comments regarding the CAP 2000 proposal.
- Regulations (PDF) (203 pp, 350K)
Related Links
Other Files
- California State Motor Vehicle Pollution Control Standards;
Waiver of Federal Preemption - Notice of Within the Scope
Determination (Zero Emission Vehicle Requirement) (Signed
January 18, 2001)
- Federal
Register Notice (Published January 25, 2001)
- January 18, 2001 Decision Document (PDF) for above Notice (23 pp, 47K, August 2000)
- Federal
Register Notice (Published January 25, 2001)
- California State Motor Vehicle Pollution Control Standards;
Waiver of Federal Preemption -- Notice of Waiver Decision
and Within the Scope Determinations
- Federal Register: August 5, 1999 (Volume 64, Number 150) [Page 42689-42692] Notice regarding waiver of federal preemption and within the scope determinations. [Read Now]
- July 28, 1999 Decision Document for 8/5/99 Preemption
Waiver Notice (PDF) (49 pp, 138K, July 28, 1999)
- September 5, 1997 Rule Amending the Test Procedures for Heavy-duty Engines, and Light-Duty Vehicles and Trucks and the Amending of Emission Standard Provisions for Gaseous Fueled Vehicles and Engines:
- Direct Final Rule and Notice of Proposed Rulemaking (NPRM)
- 3-Wheel Vehicles:
- Federal Register: March 11, 1998 [Page 11847-11850] Final Rule: Control of Air Pollution From Motor Vehicles and New Motor Vehicle Engines; Increase of the Vehicle Mass for 3-Wheeled Motorcycles [Read Now]
- Cancellation of 7/3/97 Public Hearing (1 page, 138K, TXT file, July 1997)
- 6/3/97 Proposed Rule to change the regulatory definition of a motorcycle to include 3-wheeled vehicles weighing up to 1749 pounds
- 10 Gallon Per Minute Fuel Dispenser Flow Rate Regulation
- 6/21/96 Press Release
- 6/26/96 Direct Final Rule
- 6/26/96 Proposed Rule
- Fact Sheet: Questions and Answers, Revision, plus Procedures (11K, TXT file, September 24, 1997)
- February 14, 1996 Vehicle Import Amendments to Final Rule (PDF) (5 pp, 40K, February 14, 1996) or (also available as a TXT file)
- August 23, 1995 Evaporative and Refueling Emission Technical Amendments, Final Rule | PDF Version
- June 30, 1995 Technical Amendments to the Test Procedures for Methanol-Fueled Motor Vehicles and Motor Vehicle Engines and Petroleum-Fueled Motor Vehicles, Final Rule
- May 1996 Press Release: Hyundai high altitude cars recalled for emission repair
- July 17, 1992 (57 FR 31888) Interim Regulations for Cold Temperature Carbon Monoxide Emissions from
1994 and Later Model Year Gasoline-fueled Light-Duty Vehicles
and Light-Duty Trucks
- Preamble (PDF) (59 pp, 98K)
- Regulation (PDF)(155 pp, 217K)
EPA Links
- Light-Duty Vehicle Greenhouse Gas Emissions Standards and Corporate Average Fuel Economy Standards
- Light Duty Greenhouse Gas Standards and Compliance Information
- Advanced Automotive Technology and the Clean Automotive Technology Program
- Fuel Cells and Vehicles
- Gasoline Fuels
- Alternate Fuels
- MOBILE Model for On-Road Vehicles
- Motor Vehicle Air Conditioning Information for Consumers
- Motorcycles
- Certification Test Data
External Links
- Green Racing
This Web site is sponsored by the U.S. Department of Energy (DOE) and provides further information on Green Racing. EPA works with DOE to ensure that manufacturers and racing teams minimize the energy and petroleum used and greenhouse gases (GHG) that can be emitted from some racing vehicles. - National Center for Vehicle Emissions Control and Safety (NCVECS)
Colorado State University
This Web site provides information about NCVECS as well as topics and issues related to mobile sources. Topics covered include: light-duty vehicle emissions research, on-board diagnostics II, automotive emissions repair tips, automotive technician training issues, and basic and enhanced inspection/maintenance program issues. - Best Workplaces for Commuters
The Best Workplaces for Commuters program was established by EPA and DOT and is now administered by the Center for Urban Transportation Research (CUTR), to recognize employers who voluntarily meet the National Standard of Excellence in employer-provided commuter benefits. Providing commuter benefits helps employers address limited or expensive parking, reduce traffic congestion, improve employer recruiting and retention, and minimize the environmental impacts associated with drive-alone commuting. The Web site provides information on the program for employers, employees, supporters, and commuters. - Mobile Source Program
California Air Resources Board (CARB)
This Web page provides links to information on numerous topics related to reducing pollution from cars and light trucks, including: a buyer's guide to cleaner cars, the California Motor Vehicle Service Information Program, carpool lane access, the Emission Inventory Program, evaporative emission controls, in-use testing of motor vehicles, and the smoking vehicles hotline.