Alternative fuels, also known as non-conventional fuels, are any materials or substances that can be used as a fuel, other than conventional fuels.

Provides information on alternative vehicle fuels and transportation technologies and related legislation. The center also distributes the newsletter "Biofuels News."

Current Vehicle Technologies. Advanced Technology vehicles currently available in the United States include flexible fueled vehicles, bifuel (dual fuel) vehicles, hybrid vehicles ...

U.S. Department of Energy - Energy Efficiency and Renewable Energy Alternative Fuels and Advanced Vehicles Data Center

Alternative Fuel Vehicle refers to a vehicle that runs on a fuel other than "traditional" gasoline or diesel; any method of powering an engine that does not involve solely ...