Alternative fuels, as defined by the Energy Policy Act of 1992 (EPAct), include ethanol, natural gas, propane, hydrogen, biodiesel*, and electricity fuels. These fuels are being used worldwide in a variety of vehicle applications. Learn more about how the EPAct Program works by going to the EPAct Web site.

Using these alternative fuels in vehicles can generally reduce harmful pollutants and exhaust emissions. In addition, most of these fuels can be domestically produced and derived from renewable sources.