U.S. DEPARTMENT OF ENERGY
   • Office of Energy Efficiency and Renewable Energy
       ° FreedomCar & Vehicle Technologies
       ° Hydrogen, Fuel Cells & Infrastructure Technologies
       ° Biomass
       ° Alternative Fuels Data Center
       ° Transportation Fact of the Week
       ° Fuel Economy
       ° Hybrid Electric Vehicle Program
       ° Power Technologies Data Book
       ° Buildings Energy Data Book
       ° Hydrogen Data Book
   • Energy Information Administration
OAK RIDGE NATIONAL LABORATORY
   • Center for Transportation Analysis
       ° Transportation Energy Data Book
       ° Biomass Energy Data Book
ARGONNE NATIONAL LABORATORY
   • GREET Model
USA.GOV - 1st CLICK TO THE U.S. GOVERNMENT
FEDERAL GOVERNMENT - FEDSTATS
U.S. ARMY CORPS OF ENGINEERS
U.S. BUREAU OF LABOR STATISTICS
U.S. CENSUS BUREAU
   • Vehicle Inventory and Use Survey
U.S. DEPARTMENT OF COMMERCE
   • Bureau of Economic Analysis
U.S. DEPARTMENT OF TRANSPORTATION
   • Bureau of Transportation Statistics
      ° Commodity Flow Survey Program
      ° National Transportation Library
      ° Omnibus Monthly Survey
      ° TranStats
   • Federal Aviation Administration
   • Federal Highway Administration
      ° Office of Highway Policy Information
      ° National Household Travel Survey
   • Federal Motor Carrier Safety Administration
   • Federal Railroad Administration
   • Federal Transit Administration
   • Maritime Administration
   • National Highway Traffic Safety Administration
   • Research and Innovative Technology Administration
   • The Volpe Center
   • U.S. Coast Guard

U.S. ENVIRONMENTAL PROTECTION AGENCY
   • Office of Air and Radiation
       ° Office of Air Quality Planning & Standards
   • Office of Transportation and Air Quality
AMERICAN AUTOMOBILE ASSOCIATION
AMERICAN PUBLIC TRANSPORTATION ASSOCIATION
AMTRAK
ASSOCIATION OF AMERICAN RAILROADS
ASSOCIATION OF OIL PIPELINES
CALIFORNIA AIR RESOURCES BOARD
CALIFORNIA ENERGY COMMISSION
ENO FOUNDATION FOR TRANSPORTATION
ELECTRIC DRIVE TRANSPORTATION ASSOCIATION
INTERNATIONAL ENERGY AGENCY
NATIONAL AUTOMOBILE DEALERS ASSOCIATION
RUNZHEIMER INTERNATIONAL
TEXAS TRANSPORTATION INSTITUTE
TRANSPORT CANADA
TRANSPORTATION RESEARCH BOARD
WARD'S COMMUNICATIONS
WORLD ENERGY ASSESSMENT