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 << Vehicles & Equipment

Corporate Average Fuel Economy (C A F E )
First enacted by Congress in 1975, the purpose of CAFE is to reduce energy consumption by increasing the fuel economy of cars and light trucks. Regulating CAFE is the responsibility of NHTSA and the Environmental Protection Agency (EPA). NHTSA sets fuel economy standards for cars and light trucks sold in the U.S.; EPA calculates the average fuel economy for each manufacturer. This site contains an immense amount of information about the CAFE program, including a program overview, related rulemaking activities, research, fleet characteristics and summaries of manufacturers’ fuel economy performance since 1978.
feature arrow icon Automotive Fuel Economy: Title 49 U.S. Code, Chapter 329
CAFE Request for Product Plan Info for Passenger Cars and Trucks through MY 2020
The purpose of this request for comments is to acquire new and updated information regarding vehicle manufacturers’ future product plans to assist the agency in assessing what corporate average fuel economy (CAFE) standards should be established for model years 2012 through 2016 passenger cars and light trucks. The establishment of those standards is required by the Energy Policy and Conservation Act, as amended by the Energy Independence and Security Act (EISA) of 2007, P.L. 110-140.
feature arrow icon Request for Product Plan Information
Average Fuel Economy Standards, Passenger Cars and Light Trucks, MY 2011-2015
Proposes substantial increases in the Corporate Average Fuel Economy (CAFE) standards for passenger cars and light trucks that would enhance energy security by improving fuel economy. Since the carbon dioxide (CO2) emitted from the tailpipes of new motor vehicles is the natural by-product of the combustion of fuel, the increased standards would also address climate change by reducing tailpipe emissions of CO2. Those emissions represent 97 percent of the total greenhouse gas emissions from motor vehicles. Implementation of the new standards would dramatically add to the billions of barrels of fuel already saved since the beginning of the CAFE program in 1975.
feature arrow icon Oct. 10: Final Environmental Impact Statement (Download as a Full PDF or By Chapters)
feature arrow icon NHTSA Public Hearing on the CAFE DEIS
feature arrow icon June 26: Draft Environmental Impact Statement (very large .pdf)
feature arrow icon Draft Environmental Impact Statement, Appendix A
feature arrow icon Draft Environmental Impact Statement, Appendix B
feature arrow icon Draft Environmental Impact Statement, Appendix C
feature arrow icon DOT Secretary Peters Announces Proposal
feature arrow icon Notice of Proposed Rulemaking (very large .pdf)
feature arrow icon Preliminary Regulatory Impact Analysis (very large .pdf)
feature arrow icon Request for Product Plan Information
feature arrow icon Supplemental Scoping Notice
Notice of Intent to Prepare EIS for CAFE Standards & Supplemental Scoping Notice
The purpose of this notice is to announce that NHTSA plans to prepare an Environmental Impact Statement (EIS) to address the potential environmental impacts of the agency’s Corporate Average Fuel Economy (CAFE) program for passenger cars and light trucks. The EIS will consider the potential environmental impacts of new fuel economy standards for model year 2011-2015 passenger cars and light trucks that NHTSA will be proposing pursuant to the Energy Independence and Security Act of 2007. To this end, this notice initiates the NEPA scoping process to identify the environmental issues and reasonable alternatives to be examined in the EIS, and requests comments regarding those and others matters related to the scope of NHTSA’s NEPA analysis for the new standards. NHTSA will provide further guidance for the public about the scoping process in a separate notice that will be published when the proposal itself is published.
feature arrow icon CAFE NEPA Notice of Intent -- as issued March 21, 2008
feature arrow icon Supplemental Scoping Notice
CAFE Request for Product Plan Info for Passenger Cars and Trucks through MY 2017
The purpose of this request for comments is to acquire new and updated information regarding vehicle manufacturers’ future product plans to aid in implementing the President’s plan for reforming and increasing corporate average fuel economy (CAFE) standards for passenger cars and further increasing the already reformed light truck standards. The agency is seeking information in anticipation of obtaining statutory authority to reform the passenger car CAFE program and to set standards under that structure for MY 2010 – 2017 passenger cars. The agency is also seeking this information in anticipation of setting standards for MY 2012-2017 light trucks.
feature arrow icon Corporate Average Fuel Economy - Request for Product Plan Information for Model Year 2007-2017 Passenger Cars and MY 2010-2017 Light Trucks
Light Truck Fuel Economy Standard Rulemaking (Model Years 2008-2011)
This final rule reforms the structure of the Corporate Average Fuel Economy (CAFE) program for light trucks and establishes higher CAFE standards for model year (MY) 2008-2011 light trucks. Manufacturers may comply with CAFE standards established under the reformed structure (Reformed CAFE) or with standards established in the traditional way (Unreformed CAFE) during a transition period of MYs 2008-2010. In MY 2011, all manufacturers will be required to comply with a Reformed CAFE standard. Under Reformed CAFE, fuel economy standards are restructured so that they are based on a measure of vehicle size called "footprint," the product of multiplying a vehicle's wheelbase by its track width. A target level of fuel economy is established for each increment in footprint. Smaller footprint light trucks have higher targets and larger ones, lower targets.
feature arrow icon New Light Truck Economy Standards to Save 10.7 Billion Gallons of Fuel
feature arrow icon Remarks by Secretary Mineta at Announcement
feature arrow icon Final Rule (large .pdf file, may take time to open)
feature arrow icon Final Environmental Assessment
feature arrow icon Final Regulatory Impact Analysis
Summary of Fuel Economy Performance
Fleet fuel economy performances, by manufacturers, since 1978, including both imported and domestic passenger cars and light trucks. Also available are the overall fleet fuel economy performance and sales volume data.
feature arrow icon Summary of CAFE Fines (Updated Jan. 2009)
feature arrow icon Summary of Fuel Economy Performance, Nov. 2008
feature arrow icon Summary of Fuel Economy Performance, March 2008
feature arrow icon Flexible Fuel Credits (2003-2006)
feature arrow icon Summary of Fuel Economy Performance, Oct. 2007 (revised Jan. 15, 2008)
feature arrow icon Summary of Fuel Economy Performance, March 2007
feature arrow icon Summary of Fuel Economy Performance, October 2006
feature arrow icon Summary of Fuel Economy Performance, March 2005
feature arrow icon Summary of Fuel Economy Performance, March 2004
feature arrow icon New Passenger Car Fleet Characteristics
feature arrow icon Domestic Passenger Car Fleet Characteristics
feature arrow icon Imported Passenger Car
feature arrow icon Light Truck
feature arrow icon 2WD Light Truck
feature arrow icon 4WD Light Truck
feature arrow icon Asian Imported Car
feature arrow icon European Imported Car
feature arrow icon Historical Passenger Car
Automotive Fuel Economy Program Reports
These annual reports summarize the fuel economy performance of the current vehicle fleet and highlights the activities of NHTSA during the calendar year. Reports also include a section summarizing rulemaking activities.
feature arrow icon 2004 Automotive Fuel Economy Program
feature arrow icon 2003 Automotive Fuel Economy Program
feature arrow icon 2002 Automotive Fuel Economy Program
feature arrow icon 2001 Automotive Fuel Economy Program
feature arrow icon 2000 Automotive Fuel Economy Program
feature arrow icon 1999 Automotive Fuel Economy Program
feature arrow icon 1997 Automotive Fuel Economy Program
 Studies/Reports
Report to Congress: Study of Feasibility and Effects of Reducing Use of Fuel for Automobiles (August 9, 2006)
Effectiveness and Impact of CAFE Standards
Report to Congress on Effects of the Alternative Motor Fuels Act CAFE Incentives Policy
 Frequently Asked Questions
CAFE Overview
Related Links
 external link icon Light Truck Fuel Economy Standard Rulemaking (Model Years 2008-2011)
More On The Web
 external link icon Federal Docket Management System (FDMS)
  DOT publishes and stores online information about...
 external link icon Dept of Energy's Alternative Fuel Data Center
 external link icon EPA Green Vehicles Web Page
More >>  
 Rules   
FMVSS Part Details Actions
  49 CFR Parts 523, 533 and 537 Light Truck Average Fuel Economy Standards, Model Years 2008-2011
This final rule reforms the structure of the corporate average fuel economy (CAFE) program for light trucks and establishes higher CAFE standards for model year (MY) 2008-2011 light trucks. Reforming the CAFE program will enable it to achieve larger fuel savings, while enhancing safety and preventing adverse economic consequences.
PDF icon Final Regulatory Impact Analysis
PDF icon Final Environmental Assessment
PDF icon Final rule
  49 CFR Part 533 Reforming the Automobile Fuel Economy Standards Program
This document seeks comment on various issues relating to the corporate average fuel economy (CAFE) program. In particular, this document seeks comments relating to possible enhancements to the program that will assist in furthering fuel conservation while protecting motor vehicle safety and the economic vitality of the auto industry. The agency is particularly interested in improvements to the structure of the CAFE program authorized under current statutory authority. The focus of this document is to solicit comments on the structure of the CAFE program, not the stringency level for a future CAFE standard.
external link icon Advance Notice of Proposed Rulemaking
external link icon Request for Comments
  49 CFR Part 538 Automobile Fuel Economy Manufacturing Incentives for Alternative Fueled Vehicles
This final rule extends the incentive created by the Alternative Motor Fuels Act of 1988 (AMFA) to encourage the continued production of motor vehicles capable of operating on alternative fuels for four additional model years covering model years (MY) 2005 to MY 2008. Under the special procedures for calculating the fuel economy of those vehicles contained in AMFA, alternative and dual fueled vehicles are assigned a higher fuel economy value for CAFE purposes, which can result in manufacturers earning credits for their fleets. The final rule limits the maximum amount of credit that may be applied to any manufacturers' fleet to 0.9 mpg per fleet during MY 2005 - MY 2008.
external link icon Final Rule
  49 CFR Part 538 Under 49 CFR Part 538, Automotive Fuel Economy Manufacturing Incentives for Alternative Fuel Vehicles
To provide an incentive for the production of vehicles that can operate on certain alternative fuels as well as on regular petroleum fuels, Congress established a special procedure for calculating the fuel economy of those vehicles for determining compliance with the Corporate Average Fuel Economy standards.
external link icon Notice of proposed rulemaking (NPRM)
    Draft Environmental Assessment
The draft environmental assessment evaluates the potential environmental impacts associated with NHTSA’s proposed action to set Corporate Average Fuel Economy Standards for model year 2008-2011 light trucks. This document describes the environment and resources that might be affected by the proposed light truck CAFE standards for model years 2008-2011, and assesses estimated impacts of alternative actions.
PDF icon Draft of the Evironmental Assessment proposed action to set CAFE standards for model year 2008-2011 light trucks
    Nissan North America, Inc. Petition for Exemption from Two-Fleet Rule Affecting Compliance with Passenger Automobile Fuel Economy Standards
Nissan filed a petition requesting exemption from the two fleet rule for the 2006-2010 model years. The two fleet rule, which is contained in the CAFE statute, requires that a manufacturer divide its passenger automobiles into two fleets, a domestically-manufactured fleet and a non-domestically manufactured fleet, and ensure that each fleet separately meets the CAFE standards for passenger automobiles. The CAFE statute requires NHTSA to grant such a petition unless it finds that doing so would result in reduced employment in the U.S. related to motor vehicle manufacturing. NHTSA’s analysis does not support a finding that granting the petition would reduce automotive manufacturing employment in the United States. Accordingly, in this notice, NHTSA is granting Nissan’s petition.
external link icon Grant of petition for exemption from two-fleet rule
  49 CFR Part 533 Light Truck Average Fuel Economy Standards, Model Years 2005-2007
This final rule established the average fuel economy standards for light trucks that will be manufactured in the 2005-2007 model years (MYs). Chapter 329 of Title 49 of the United States Code requires the issuance of these standards. The standards for all light trucks manufactured by a manufacturer is set at 21.0 mpg for MY 2005, 21.6 mpg for MY 2006, and 22.2 mpg for MY 2007. This rule is effective May 5, 2003.
PDF icon Final Environmental Assessment
PDF icon Final Economic Assessment
external link icon Final Rule
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