Maps and Data - Vehicle Fuel Efficiency (CAFE) Requirements by Year
Find maps and charts showing transportation data and trends related to alternative fuels and vehicles.
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119 results
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Vehicles: Fuel Consumption and Efficiency
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Fuel Economy and Consumption of Light-Duty Vehicles
Relationship between fuel economy and lifetime fuel consumption for light-duty vehicles Last update May 2021
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Fuel Economy at Various Driving Speeds
Trend of fuel efficiency at different vehicle speeds, grouped by fuel type Last update May 2021
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Fuel Use by Transportation Mode in 2019
Breakdown of fuel used in the United States by transportation mode, 2019 Last update May 2023
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Power and Fuel Economy of the Average Light-Duty Vehicle
Trend of vehicle horsepower and fuel economy from 1975 to 2023 Last update February 2024
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Vehicle Fuel Efficiency (CAFE) Requirements by Year
Trend of Corporate Average Fuel Economy (CAFE) vehicle fuel efficiency standards from 1978 to 2031 Last update October 2024
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Vehicles: Vehicle Market
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AFV and HEV Model Offerings, by Manufacturer
Trend of alternative fuel vehicle (AFV) and hybrid electric vehicle (HEV) models by manufacturer, 1991-2024 Last update October 2024
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Efficiency Ratios for Light-Duty All-Electric Vehicles in the United States
Provides efficiency ratios of on-road all-electric vehicles in the United States in 2021, based on vehicle registration data. Last update September 2024
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Light-Duty Vehicles Produced in the United States
Trend in the number and types of light-duty vehicles produced from 1975 to 2022 Last update October 2024
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TransAtlas
Interactive map displays light-duty vehicle registration counts over time by state and fuel type
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Types of Vehicles by Weight Class
Chart shows typical vehicle types within the Federal Highway Administration (FHWA) vehicle classes Last update June 2012
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U.S. Vehicles by Transportation Mode
Breakdown of self-propelled vehicles by transportation mode in the United States (2021) Last update January 2024
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Vehicle Weight Classes & Categories
Charts illustrate the vehicle weight classes and categories used by the Federal Highway Administration (FHWA), the U.S. Census Bureau, and the U.S. Environmental Protection Agency (EPA). Last update June 2012
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Vehicles: Driving Patterns
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Annual Vehicle Miles Traveled in the United States
Trend of vehicle miles traveled from 1970 to 2023 Last update October 2024
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Average Fuel Economy by Major Vehicle Category
Comparison of fuel economy among vehicle types Last update January 2024
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Average Monthly Fluctuation in U.S. Vehicle Miles Traveled
U.S. vehicle miles traveled for each month of the year, averaged from 2010 to 2023 Last update October 2024
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Average Vehicle Trip Length by Purpose (2017)
Comparison of average vehicle trip length by purpose in the United States Last update October 2022
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Means of Transportation to Work
Trend of how people commuted to work in the United States from 1980 to 2019 Last update June 2022
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Share of All U.S. Vehicle Trips by Length (miles)
Breakdown of trip lengths among all vehicle trips Last update January 2024
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Laws & Incentives
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Biodiesel Laws and Incentives by State
Displays states and their respective law and incentive counts related to the use of biodiesel
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Electric Vehicle Laws and Incentives by State
Displays states and their respective law and incentive counts related to electric vehicles
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Ethanol Laws and Incentives by State
Displays states and their respective law and incentive counts related to the use of ethanol
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Fuel Taxes by Country
Comparison of gasoline and diesel taxes in Organization for Economic Cooperation and Development countries Last update March 2019
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Hydrogen Laws and Incentives by State
Displays states and their respective law and incentive counts related to the use of hydrogen
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Incentive Additions by Policy Type
Trend of state law and incentive enactments listed by incentive type from 2002 to 2023 Last update April 2024
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Law and Incentive Additions by Fuel/Technology Type
Trend of state law and incentive enactments, listed by the targeted technology or fuel type, from 2002 to 2023 Last update June 2024
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Vehicle Fuel Efficiency (CAFE) Requirements by Year
| 1978 | 1979 | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | 2031 | |
| Passenger Cars | 18 | 19 | 20 | 22 | 24 | 26 | 27 | 27.5 | 26 | 26 | 26 | 26.5 | 27.5 | 27.5 | 27.5 | 27.5 | 27.5 | 27.5 | 27.5 | 27.5 | 27.5 | 27.5 | 27.5 | 27.5 | 27.5 | 27.5 | 27.5 | 27.5 | 27.5 | 27.5 | 27.5 | 27.5 | 27.5 | 30.4 | 33.3 | 34.2 | 34.9 | 36.2 | 37.8 | 39.1 | 40.5 | 42 | 43.7 | 43.7 | 43.7 | 43.7 | 49.2 | 53.4 | 59.4 | 60 | 61.2 | 62.5 | 63.7 | 65.1 |
| Light-Duty Trucks | 17.5 | 19 | 20 | 19.5 | 20 | 20.5 | 20.5 | 20.5 | 20 | 20.2 | 20.2 | 20.4 | 20.5 | 20.6 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 21 | 21.6 | 22.2 | 22.5 | 23.1 | 23.5 | 24.4 | 25.4 | 26 | 26.6 | 27.5 | 28.8 | 29.5 | 30.1 | 30.6 | 31.3 | 31.3 | 31.3 | 31.3 | 35.1 | 38.2 | 42.4 | 42.6 | 42.6 | 43.5 | 44.3 | 45.2 |
Source:
CAFE Standards 1978-2010: National Highway Traffic Safety Administration, Summary of Fuel Economy Performance
CAFE Standards 2011-2016: U.S. Environmental Protection Agency CAFE 2012-2016 Final Rule
CAFE Standards 2017-2025: U.S. Environmental Protection Agency CAFE 2017-2025 Final Rule
Notes: CAFE standards represent regulatory targets for original equipment manufacturers and do not represent expected window sticker fuel economies, which adjust regulatory test results down. NHTSA notes that real-world fuel economy is generally 20%-30% lower than the estimated required CAFE level stated above. CAFE standards for light-duty trucks were not introduced until 1982. Passenger cars and light-duty trucks are defined in the Code of Federal Regulations (CFR) 49 part 523. Each of these definitions has two separate "footprint" classifications that are based on the vehicle's size and are used to determine CAFE requirements for a particular vehicle. For more information on NHTSA CAFÉ requirements, visit nhtsa.gov/laws-regulations/corporate-average-fuel-economy.
Corporate Average Fuel Economy (CAFE) standards were put in place after the 1974 and 1980 oil price shocks. Cheap oil throughout the 1980s and 1990s reduced the pressure for CAFE to be used as a tool to reduce petroleum use. The oil price shock of 2008 renewed interest in CAFE, leading to regular updates through 2031. NHTSA developed the CAFE model to set requirements based on technological feasibility, economic practicability, the effect of other government motor vehicle standards on fuel economy, and the need for energy conservation. It is important to note that the CAFÉ model must be used to determine the requirements for an Original Equipment Manufacturer’s (OEM) vehicle fleet. The CAFE requirements used for this chart are the estimated averages of CAFE levels (in miles per gallon) required under the Final Rule.
To view more details, notes, and acronyms, please download the Excel spreadsheet.
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