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  2. Renewable Fuel Standard Program

Alternative Fuels

Alternative fuels include gaseous fuels such as hydrogen, natural gas, and propane; alcohols such as ethanol, methanol, and butanol; vegetable and waste-derived oils; and electricity. These fuels may be used in a dedicated system that burns a single fuel, or in a mixed system with other fuels including traditional gasoline or diesel, such as in hybrid-electric or flexible fuel vehicles.

Some vehicles and engines are designed for alternative fuels by the manufacturer. Others are converted to run on an alternative fuel by modifying the engine controls and fueling system from the original configuration.

Fact Sheet:

  • Biodiesel (pdf) (90.8 KB, February 2010, EPA-420-F-10-009)

Learn more about:

  • Converting a vehicle or engine to run on a different fuel.
  • Alternative fuels on the Department of Energy.
  • Sustainable Aviation Fuel Grand Challenge.

Renewable Fuel Standard Program

  • Learn About
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  • Alternative Fuels
Contact Us About Renewable Fuel Standards
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on July 15, 2024
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