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This Web page and the related pages linked on the left sidebar
provide information on controlling emissions from passenger cars
and light trucks. This includes consumer information, vehicle standards
and regulations, certification and compliance, fuel economy, and
test data. For further information or assistance regarding this
Web page, please Contact Us.
Index of Topics
About Portable Document
Format Files
Consumer Information
- Green Vehicle Guide (February 2001, EPA420-F-01-006) 8K
PDF
- Automobile Emissions: An Overview (August 1994, EPA400-F-92-007)
86K PDF
- Automobiles and Carbon Monoxide (January 1998, EPA400-F-92-005)
23K PDF
- Automobiles and Ozone (January 1993, EPA400-F-92-006) 65K
PDF
- Motor Vehicles and the 1990 Clean Air Act (August 1994, EPA400-F-92-013)
37K PDF
- Milestones in Auto Emissions Control (August 1994, EPA400-F-92-014)
65K PDF
- Tips to Save Gas and Improve Mileage (August 1994, EPA420-F-92-004)
20K PDF
- Your Car and Clean Air: What YOU Can Do to Reduce Pollution
(August 1994, EPA420-F-93-002) 69K
PDF
- Do You Drive a 1996 or Newer Car or Light Truck? (August 2002,
EPA420-F-02-016) 444K PDF
- On-Board Diagnostics: Frequently Asked Questions (August 2002,
EPA420-F-02-014) 39K
PDF
- Emission Warranty Info: If you just failed an emissions test
Regulations & Related Documents
Proposed Technical Amendments - Test Procedures for Testing
Highway and Nonroad Engines and Omnibus Technical Amendments
(published September 10, 2004)
- Fact Sheet: "Proposed Changes to Test Procedures for Nonroad
Engines and Heavy-Duty Highway Engines" (EPA420-F-04-046,
August 2004) 104K
PDF (3 pages)
- Federal Register Notice: "Test Procedures for Testing
Highway and Nonroad Engines and Omnibus Technical Amendments"
- Technical Support Document: "Test Procedures for Highway
and Nonroad Engines and Omnibus Technical Amendments" (EPA420-D-04-004,
August 2004) 808K
PDF (70 pages)
CAP 2000 (Compliance Assurance Program)
- 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.
Contact: Linda Hormes (734-214-4502) hormes.linda@epa.gov
- 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:
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
[HTML]
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 [601K PDF]. This
petition was filed before EPA Administrator Carol Browner
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.
Contact: Linda Hormes (734-214-4502) hormes.linda@epa.gov
- Guidance document and workshop: NOTE DATE CORRECTION An EPA guidance document
discussing the implementation of CAP 2000 is available in PDF format or in WPD format. This document
also announces an informal workshop on Tuesday, May 18th kicking
off the implementation of CAP 2000. A PDF map to the workshop is provided
here.
- 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 [13K PDF]
- Summary [2K TXT]
- Preamble [210K PDF] or [220K WPD]
- Regulations [350K PDF] or [400K WPD]
- 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.
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)
- 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 [138K PDF] or [190K WPD]
- 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 [157K
TXT] and Notice of Proposed Rulemaking (NPRM) [7K
TXT]
Contact: Mr. Jaime Pagan (734-214-4574) fax: (734-214-4816)
or email: pagan.jaime@epa.gov
- 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 [1K TXT]
- 6/3/97 Proposed Rule to change the regulatory definition
of a motorcycle to include 3-wheeled vehicles weighing up
to 1749 pounds [37K
HTML]
- Extension of Interim Revised Durability
Procedures for Light-Duty Vehicles and Light-Duty Trucks:
- 8/22/97 Final rule [HTML]
- 3/21/97 Notice of Cancellation of 3/27 Public Hearing
[1K TXT]
- 3/11/97 Proposed Rule [20K
HTML]
- Removal of direct final rule amendments [4K
HTML]
Durability ftp Directory
- 10 Gallon Per Minute Fuel Dispenser Flow Rate Regulation
- 2/14/96 Vehicle Import Amendments Final Rule
[40K PDF] (readable tables) or
[30K TXT] (unreadable tables)
- August 23, 1995 Evaporative and Refueling Emission Technical
Amendments, Final Rule [TXT]
or [PDF]
- 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. [TXT]
- May 1996 Press Release: Hyundai high altitude cars recalled
for emission repair [1K TXT]
- 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
- Directory of These & Related
Documents [Index]
Related Links
EPA Links
External Links
- 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
EPA and the U.S. Department of Transportation (DOT)
The Best Workplaces for Commuters program was established by EPA
and DOT 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.
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