Corporate Average Fuel Economy
CAFE
Enacted by Congress in 1975, CAFE's purpose is to reduce energy consumption by increasing the fuel economy of cars and light trucks. NHTSA has set standards to increase CAFE levels rapidly over the next several years, which will improve our nation’s energy security and save consumers money at the pump. This site contains an immense amount of information about the CAFE program including an overview, rulemaking actions, fleet characteristics data, compliance activities, summaries of manufacturers’ fuel economy performances since 1978, and related studies.
December 21, 2016: NHTSA Responds to Petitions on CAFE Civil Penalties and Harmonization
NHTSA issued two Federal Register Notices pertaining to the Corporate Average Fuel Economy (CAFE) program. Both are in response to petitions from the Alliance of Automobile Manufacturers and the Association of Global Automakers.
The first postpones the effective date of an increase in civil penalties for CAFE violations. The penalties, which were previously planned to be effective starting with model year 2015, will now be effective for model year 2019 and beyond.
The second grants a petition for rulemaking regarding harmonization of the CAFE program and the EPA light-duty vehicle Greenhouse Gas Emissions program. The Agency will address the issues raised by the petitioners in its rulemaking process.
NHTSA brings CAFE reports to its Public Information Center
Dec. 16, 2015: NHTSA introduces a new, innovative CAFE Management Suite that represents a shift to an automated system, allowing for streamlined uploads of fuel economy data, standardized data management, and business intelligent report capabilities.
The Public Information Center will allow the general public (researchers, analysts, the press, etc.) to easily access dynamic data about the CAFE program through the CAFE PIC self-service reporting portal.
The interactive CAFE PIC will provide timely, reliable fuel economy data, which can be viewed in report and/or graph format. The data can be easily sorted and filtered based on specific areas of interest to produce custom reports, which can also be downloaded as excel or pdf files.
Phase 2
Final Rule for Phase 2 fuel efficiency and GHG emissions standards for medium & heavy-duty vehicles, MY2018-2027
NHTSA and EPA issued a Final Rule for “Phase 2” for medium and heavy duty vehicles to improve fuel efficiency and cut carbon pollution. The agencies estimate that the standards will save up to 2 billion barrels of oil and reduce CO2 emissions by up to 1.1 billion metric tons over the lifetimes of MYs 2018-2029 vehicles, providing up to $230 billion in net social benefits.
Documents relating to the Phase 2 proposal for medium & heavy duty vehicles, MY 2018-2027
Standards for medium- and heavy-duty vehicles would improve fuel efficiency and cut carbon pollution to reduce impacts of climate change, while bolstering energy security and spurring manufacturing innovation. The proposed standards are expected to lower CO2 emissions by approximately 1 billion metric tons, cut fuel costs by about $170 billion, and reduce oil consumption by up to 1.8 billion barrels over the lifetime of vehicles sold under the program. These reductions are nearly equal to the greenhouse gas emissions associated with energy use by all U.S. residences in one year.
Research Supporting the Phase 2 Proposal
- Review and Analysis of Potential Safety Impacts and Regulatory Barriers to Fuel Efficiency Technologies and Alternative Fuels in Medium- and Heavy-Duty Vehicles
- Commercial Medium- and Heavy-Duty (MD/HD) Truck Fuel Efficiency Technology Study – Report #1 (Revised)
- Commercial Medium- and Heavy-Duty (MD/HD) Truck Fuel Efficiency Technology Study – Report #2
- Commercial Medium- and Heavy-Duty (MD/HD) Truck Fuel Efficiency Technology Cost Study
- Effects of Tire Rolling Resistance Levels on Class-8 Tractor Trailer Stopping Distance Performance
- Memo on Southwest Research Institute (SwRI) engine maps or delta maps used in research supporting Notice of Proposed Rulemaking (NPRM)
- Ford 3.5-liter V-6
- Ford 6.2-liter V-8
- Cummins 6.7 Liter 300 HP (base) & 4.5 Liter 256 HP (variant)
- Cummins 6.7 Liter 385 HP (base) & 4.5 Liter 256 HP (variant)
- Detroit 14.8-liter DD15 (base) and 12.3-liter variant
CAFE Standards and Mid-Term Evaluation for Light-Duty Vehicles, MYs 2022-2025
On July 18, 2016, NHTSA, EPA and California Air Resources Board (CARB) issued a Draft Technical Assessment Report (TAR) for light-duty vehicle CAFE and GHG standards for MYs 2022-2025. This Draft TAR is the first step in the Agencies’ mid-term evaluation process of the October 2012 final rule establishing CAFE and GHG standards for MYs 2017 and beyond.
The Mid-Term Evaluation is the overarching process by which NHTSA, EPA, and the California Air Resources Board (CARB) will decide on CAFE and GHG emissions standard stringency for model years 2022-2025. The first step in the Mid-Term Evaluation is the Draft Technical Assessment Report, or TAR. Using comments to the Draft TAR and the best available data and information, NHTSA will begin to develop its rulemaking to establish CAFE standards for MYs 2022 and beyond, while EPA will consider whether its existing GHG standards for those MYs continue to be appropriate or should be revised. The 2012 joint final rule that set CAFE and GHG standards for MYs 2017 and beyond laid out the path for the Mid-Term Evaluation. Much more information, including extensive research materials that were used to develop the TAR and the latest version of the CAFE model and documentation, is available by clicking the link below.
Comment at Regulations.gov
Your Voice in Federal Decision-Making
Phase 1
Phase 1 of Fuel Efficiency and GHG Emission Program for Medium- and Heavy-Duty Trucks, MYs 2014-2018
DOT and EPA Establish CAFE and GHG Emissions Standards for Model Years 2017 and Beyond
Following the direction set by President Obama on May 21, 2010, NHTSA and EPA have issued joint Final Rules for Corporate Average Fuel Economy and Greenhouse Gas emissions regulations for model years 2017 and beyond, that will help address our country's dependence on imported oil, save consumers money at the pump, and reduce emissions of greenhouse gases that contribute to global climate change.
DOT and EPA Unveil New Fuel Economy Labels
Complete Information on the New Label
NHTSA and EPA have jointly issued a final rule establishing new requirements for a fuel economy and environment label that will be posted on the window sticker of all new automobiles sold in the U.S. The redesigned label provides expanded information to American consumers about new vehicle fuel economy and fuel consumption, greenhouse gas and smog-forming emissions, and projected fuel costs and savings, and also includes a smartphone interactive code that permits direct access to additional web resources. Click the link below for more information.
Download Crash Databases for Statistical Analysis of Relationships Between Vehicles' Fatality Risk, Mass and Footprint
NHTSA plans to issue a technical report on relationships between fatality risk, mass, and footprint in model year 2000-2007 passenger cars, light trucks, and vans. The agency has made the crash databases used in its statistical analyses available to the public, enabling other researchers to analyze the same data.
New Fuel Efficiency Program Announced
At the direction of President Obama on May 21, 2010, NHTSA and EPA are taking the next steps to improve fuel efficiency and reduce greenhouse gas (GHG) emissions from mobile sources.
Light Duty Stakeholders
Medium & Heavy Duty Stakeholders
Joint Rulemaking to Establish CAFE and GHG Emissions Standards, MY 2012-2016
There is a critically important need for our country to address global climate change and to reduce oil consumption. In this context, DOT and EPA worked in coordination to establish standards for CAFE and emissions of greenhouse gases (GHG) for Model Years 2012-2016.
- Corporate average fuel economy (CAFE) and green house gas (GHG) emission rulemaking
- CAFE and GHG emission fact sheet
- Final Regulatory Impact Analysis
- Final joint technical support document
- Final Environmental Impact Statement (With Appendices A through G)
There is a critically important need for our country to address global climate change and to reduce oil consumption. In this context, DOT and EPA worked in coordination to establish standards for CAFE and emissions of greenhouse gases (GHG) for Model Years 2012-2016.
- Fuel economy (CAFE) and greenhouse gas (GHG) emission proposal
- CAFE and GHG emission proposal fact sheet
- Preliminary Regulatory Impact Analysis
- Draft joint technical support document
- Draft Environmental Impact Statement (with Appendices A through E)
- NHTSA notice of DEIS availability and public hearing
- Public hearing on the CAFE DEIS on October 30, 2009
n connection with the rulemaking to establish passenger car and light truck CAFE standards for MYs 2012-2016, NHTSA prepared the Draft and Final Environmental Impact Statements (EIS) linked below to analyze the environmental impacts of the proposed standards. The EISs compare the environmental impacts of NHTSA's Preferred Alternative and reasonable alternatives, including a “No Action” Alternative, pursuant to the National Environmental Policy Act (NEPA), 42 U.S.C. § 4321 et seq., and implementing regulations issued by the Council on Environmental Quality (CEQ) and the Department of Transportation. The EISs analyze direct, indirect, and cumulative impacts to inform decisionmakers and the public of the environmental impacts of the various alternatives.
- Final Environmental Impact Statement (With Appendices A through G)
- Draft Environmental Impact Statement (with Appendices A through E)
Average Fuel Economy Standards, Passenger Cars and Light Trucks, MY 2011-2015
Proposes substantial increases in CAFE standards for passenger cars and light trucks that would enhance energy security by improving fuel economy. Since carbon dioxide (CO2) 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.
- Final Environmental Impact Statement
- Draft Environmental Impact Statement
- Draft Environmental Impact Statement, Appendix A
- Draft Environmental Impact Statement, Appendix B
- Notice of Proposed Rulemaking
- Request for Product Plan Information
- Draft Environmental Impact Statement, Appendix C
- Supplemental Scoping Notice
- NEPA Notice of Intent -- as issued March 21, 2008
NHTSA Public Hearing on the CAFE DEIS
NHTSA held a public hearing on the CAFE Draft Environmental Impact Statement on Monday, August 4, 2008, at the National Transportation Safety Board Conference Center, 429 L'Enfant Plaza, S.W., Washington, D.C. 20594
Average Fuel Economy Standards, Passenger Cars and Light Trucks, MY 2011
NHTSA estimates that the MY 2011 standards will raise the industry-wide combined average to 27.3 mpg, save 887 million gallons of fuel over the lifetime of the MY 2011 cars and light trucks, and reduce CO2 emissions by 8.3 million metric tons during that period.
Light Truck Fuel Economy Standard Rulemaking, MY 2008-2011
This final rule reforms the structure of the 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 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.