Alternative fuels, as defined by the Energy Policy Act (EPAct) of 1992, are ethanol, natural gas, propane, hydrogen, biodiesel, electricity, methanol, and p-series fuels.  These alternative fuels can be domestically produced and derived from renewable sources.  Using these fuels in vehicles can generally reduce harmful pollutants and exhaust emissions.


EPAct defines alternative fuel vehicles (AFVs) to include any dedicated, flexible-fuel, or dual-fuel vehicle designed to operate on at least one alternative fuel.  AFVs are available in a variety of vehicle types ranging from light to heavy-duty.  The Clean Fleet Guide further defines AFVs.

To learn more about alternative fuel technology, access the following presentations.

• Overview of Alternative Fuel Technology
  
• Biodiesel as a Vehicle Fuel (PowerPoint 2.7 MB)
       http://www.eere.energy.gov/afdc/docs/biodiesel_training.ppt
• Compressed Natural Gas as a Vehicle Fuel (PowerPoint 3 MB)
       http://www.eere.energy.gov/afdc/docs/cng_training.ppt
• E85 as a Vehicle Fuel (PowerPoint 2.26 MB)
       http://www.eere.energy.gov/afdc/docs/e85_training.ppt
• Propane as a Vehicle Fuel (PowerPoint 1.64 MB)
       http://www.eere.energy.gov/afdc/docs/lpg_training.ppt
• Alternative Fuel Driver Training Companion Manual (PDF 1.4 MB)
       http://www.eere.energy.gov/afdc/pdfs/37275.pdf
• Photovoltaic Charging of Electric Vehicles (PDF 3.9mb)