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: AFVs and HEVs
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Biodiesel Purchases by EPAct-Regulated Fleets
Trend of State and Alternative Fuel Provider Biodiesel Purchases from 2000 to 2023 Last update May 2024
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Clean Cities and Communities Alternative Fuel Vehicle Inventory
Alternative fuel vehicle inventory reported by Clean Cities and Communities coalitions from 2004 to 2022 Last update February 2024
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Clean Cities and Communities Energy Use Impact by AFV Type
Trend of energy impact by fuels used in alternative fuel vehicles (AFVs) from 2004 to 2022 Last update February 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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EPAct State & Alternative Fuel Provider Fleet Exemptions
Trend of State & Alternative Fuel Provider (S&FP) exemption requests and vehicles exempted from 1997 to 2023 Last update June 2024
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Light-Duty AFV, HEV, and Diesel Model Offerings, by Technology/Fuel
Trend of vehicle models incorporating various advanced technologies or alternative fuels, from 1991 through 2024 Last update May 2024
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Light-Duty AFV Registrations
Breakdown of alternative fuel vehicle (AFV) registrations by fuel type Last update June 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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Transit Buses by Fuel Type
Trend of buses powered by various fuels in the United States, 2007-2021 Last update April 2024
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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. HEV Sales by Model
Trend of sales by hybrid electric vehicle (HEV) model, 1999-2019 Last update January 2020
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U.S. Plug-in Electric Vehicle Sales by Model
Trend of sales by PEV model, 2011-2019 Last update January 2020
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Vehicle Credits Traded by Regulated Fleets
Trend of State & Alternative Fuel Provider (S&FP) EPAct credits traded and transactions from 1997 to 2023 Last update May 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: Fuel Consumption and Efficiency
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Average Annual Fuel Use by Vehicle Type
Comparison of fuel use (per vehicle) among vehicle types Last update May 2024
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Average Annual Vehicle Miles Traveled by Major Vehicle Category
Comparison of miles traveled (per vehicle) among vehicle types Last update September 2024
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Average Fuel Consumption at Increasing Road Grades
Trend of fuel consumption at increasing road grades, for various vehicle types Last update August 2014
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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 Per-Passenger Fuel Economy by Travel Mode
Comparison of per-passenger fuel economy for various modes of transportation Last update October 2022
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Clean Cities and Communities Energy Use Impact by VMT Reduction and FE
Trend of energy impact by fuel economy (FE) improvements and reductions in vehicle miles traveled (VMT) from 2004 to 2022 Last update February 2024
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Clean Cities and Communities Energy Use Impact through Idle Reduction
Trend of energy impact by idle reduction policies and technologies from 2004 to 2022 Last update February 2024
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Composition of New U.S. Light-Duty Vehicles by Vehicle Type
Trend showing the shift in popularity of trucks versus cars by year Last update January 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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Energy Expenditures by Sector
Trend of U.S. transportation and residential energy expenditures, per capita, from 1970 to 2021 Last update January 2024
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Energy Losses in Light-Duty Gasoline Vehicles
Breakdown of energy lost to various factors in light-duty vehicles Last update January 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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