Fleet performance data collected through the Federal Automotive Statistical Tool (FAST) website reveals trends in federal agencies' alternative fuel vehicle (AFV) acquisitions, petroleum reduction efforts, and alternative fuel use. These data can help agencies analyze their fleets' performance in meeting federal mandates.

The Federal Energy Management Program (FEMP) posts federal fleet performance data sets in various formats, including charts and maps, data sets, and annual reports that can be downloaded, saved, and manipulated for individual research.

The methodologies section explains which agencies, vehicles, and fuels are covered and tracked through FAST. For more information about the data, analyses, and trends presented, contact Cabell Hodge at the National Renewable Energy Laboratory (NREL).

EPAct 1992 Alternative Fuel Vehicle Acquisition Requirements

This data set compares Energy Policy Act (EPAct) 1992 AFV acquisition requirements with total AFV acquisitions and additional AFV credits for covered federal agencies.

View AFV acquisitions, requirements, and credits.

EPAct 2005 Waivered Alternative Fuel Vehicles

Data sets display agencies' E85 AFVs waived from meeting EPAct 2005 alternative fuel use requirements. Data for each fiscal year are based on waiver approvals submitted the previous fiscal year. Waivers are primarily granted to AFVs housed more than 5 miles or a 15-minute drive from an E85 refueling station.

View data on waivered AFVs.

Federal Fleet Vehicle Inventories

Fleet vehicle inventories are organized by fuel type, vehicle type, agency, and year. Total vehicle counts are for domestically based vehicles and include law enforcement and emergency vehicles.

View federal fleet vehicle inventories.

Federal Fleet Fuel Consumption Data

Fleet fuel consumption is measured in gasoline gallon equivalents (GGE). One GGE contains the same amount of energy as a gallon of gasoline regardless of the actual volume (or density) of fuel.

View federal fleet fuel consumption data.


NREL's analysis of federal fleet performance uses data derived from FAST. Certain covered federal departments and agencies are required to report annually on the number of alternative fuel vehicles in their fleets as well as the total number of all vehicles, whether light-, medium-, or heavy-duty. They are also required to specify and quantify the type of fuel used. Total vehicle counts and alternative and petroleum fuel consumption amounts are for domestically based vehicles, including law enforcement and emergency vehicles.

The federal agencies required to report this information include:

  • Army Corps of Engineers
  • Court Services and Offender Supervision Agency
  • Department of Agriculture
  • Department of Commerce
  • Department of Defense (including Air Force, Army, Marine Corps, Navy, and Defense Agencies)
  • Department of Education
  • Department of Energy
  • Department of Health and Human Services
  • Department of Homeland Security
  • Department of Housing and Urban Development
  • Department of the Interior
  • Department of Justice
  • Department of Labor
  • Department of State
  • Department of Transportation
  • Department of the Treasury
  • Department of Veterans Affairs
  • Environmental Protection Agency
  • Executive Office of the President
  • General Services Administration
  • National Aeronautics and Space Administration
  • National Science Foundation
  • Nuclear Regulatory Commission
  • Office of Personnel Management
  • Smithsonian Institution
  • Social Security Administration
  • Tennessee Valley Authority
  • United States Postal Service.