U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
The number of registered vehicles has increased every year in the last four decades, and the number of licensed drivers is also climbing. The result is more travel on the Nation's highways, which in turn leads to an increase in the number of vehicle miles traveled. One key ingredient that has made the VMT growth possible is fuel, which includes gasoline, diesel, natural gas, and other less common fuels.