Maps and Data
Find maps and charts showing transportation data and trends related to alternative fuels and vehicles.
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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 2022 Last update March 2023
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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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Renewable Diesel Laws and Incentives by State
Displays states and their respective law and incentive counts related to the use of renewable diesel
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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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Propane Laws and Incentives by State
Displays states and their respective law and incentive counts related to the use of propane
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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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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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Natural Gas Laws and Incentives by State
Displays states and their respective law and incentive counts related to the use of natural gas
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Incentive Additions by Policy Type
Trend of state law and incentive enactments listed by incentive type from 2002 to 2022 Last update March 2023
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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 2025 Last update September 2013
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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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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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Biodiesel Purchases by EPAct-Regulated Fleets
Trend of State and Alternative Fuel Provider Biodiesel Purchases from 2000 to 2021 Last update October 2022
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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 2021 Last update October 2022
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U.S. Production, Consumption, and Trade of Ethanol
Trend of total ethanol fuel production and consumption from 2000 to 2021 Last update November 2022
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AFV Acquisitions by Regulated Fleets (by Fuel Type)
Trend of State & Alternative Fuel Provider (S&FP) alternative fuel vehicle (AFV) acquisitions by fuel type from 1992 to 2021 Last update November 2022
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Clean Cities Coalition Locations
Displays coalition locations and boundaries across the United States Last update May 2023
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Annual Vehicle Credits Earned and Used by Regulated Fleets
Trend of State & Alternative Fuel Provider (S&FP) EPAct credits traded and transactions from 1999 to 2021 Last update October 2022
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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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AFV Acquisitions by Regulated Fleets (by Fleet Type)
Trend of State & Alternative Fuel Provider (S&FP) alternative fuel vehicle (AFV) acquisitions by fleet type from 1992 to 2021 Last update October 2022
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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 2021 Last update October 2022
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Law and Incentive Additions by Fuel/Technology Type
| 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | |
| Aftermarket Conversions | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | 9 | 17 | 14 | 7 | 6 | 1 | 10 | 7 | 1 | 1 | 3 |
| Biodiesel | 28 | 35 | 25 | 37 | 74 | 97 | 59 | 57 | 43 | 39 | 16 | 43 | 16 | 20 | 9 | 6 | 16 | 17 | 3 | 7 | 9 |
| Blends | 6 | 8 | 9 | 18 | 30 | 51 | 26 | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] |
| Connected and Autonomous Vehicles | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 12 | 2 | 1 | 4 |
| Efficiency | 0 | 6 | 4 | 6 | 9 | 8 | 13 | 18 | 9 | 9 | 8 | 7 | 4 | 10 | 1 | 1 | 9 | 4 | 0 | 3 | 7 |
| Electric Vehicles | 24 | 34 | 21 | 26 | 40 | 32 | 28 | 50 | 51 | 64 | 49 | 48 | 46 | 65 | 41 | 50 | 159 | 158 | 205 | 337 | 608 |
| Emissions | 6 | 8 | 12 | 4 | 23 | 16 | 16 | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] | [object Object] |
| Ethanol | 25 | 29 | 17 | 30 | 70 | 98 | 65 | 52 | 44 | 42 | 13 | 42 | 12 | 21 | 9 | 4 | 15 | 17 | 3 | 7 | 10 |
| Hybrid Electric Vehicles | 4 | 8 | 10 | 15 | 19 | 18 | 24 | 33 | 33 | 47 | 38 | 42 | 14 | 15 | 6 | 5 | 10 | 18 | 3 | 10 | 7 |
| Hydrogen | 22 | 24 | 18 | 18 | 44 | 28 | 23 | 34 | 24 | 20 | 13 | 25 | 13 | 17 | 13 | 16 | 25 | 25 | 34 | 24 | 47 |
| Idle Reduction | 0 | 2 | 4 | 16 | 18 | 10 | 20 | 23 | 9 | 9 | 3 | 12 | 8 | 8 | 4 | 1 | 4 | 1 | 1 | 2 | 4 |
| Natural Gas | 28 | 38 | 16 | 23 | 45 | 32 | 27 | 40 | 43 | 34 | 38 | 57 | 50 | 41 | 22 | 15 | 39 | 31 | 9 | 11 | 13 |
| Neighborhood EVs | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 1 | 0 | 3 | 1 | 0 | 1 | 1 |
| Propane | 27 | 27 | 14 | 21 | 30 | 27 | 22 | 33 | 20 | 25 | 18 | 31 | 31 | 29 | 14 | 8 | 27 | 25 | 0 | 14 | 7 |
| Renewable Diesel | 1 | 3 | 1 | 4 | 5 | 1 | 3 | 1 | 2 | 3 | |||||||||||
| Other | 12 | 16 | 21 | 22 | 53 | 67 | 42 | 11 | 16 | 6 | 9 | 15 | 7 | 14 | 6 | 19 | 14 | 11 | 7 | 8 | 11 |
Source: AFDC Laws and Incentives database
This chart shows trends in laws and incentives related to alternative fuels and advanced vehicles, enacted in all 50 states and the District of Columbia, from 2002 to 2022. Visit the Laws and Incentives page for information on federal and state laws and incentives.
To view more details, notes, and acronyms, please download the Excel spreadsheet.
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