Federal

• Amtrak
• Advocates for Highway and Auto Safety
• Bureau of the Census Foreign Trade Division
• Bureau of Labor Statistics
• BTS - Bureau of Transportation Statistics
• Center for Disease Control
• Center for Transportation
• Customs Service
• Department of Commerce, ITA, Tourism Industries
• DOJ - Department of Justice
• DOT- Department of Transportation
• Highway Technology Applications
• EPA - Environmental Protection Agency
• FAA - Federal Aviation Administration
• FHWA - Federal Highways Administration
• FRA - Federal Railroad Administration
• FTA - Federal Transit Administration
• Highway Technology Applications
• MARAD - Maritime Administration
• MSC - Military Sealift Command
• MTMC - Military Traffic Management Command
• National Committee on Uniform Traffic Laws & Ordinances
• National Transportation Communications ITS Protocol
• NTL - National Transportation Library
• NHTSA - National Highway Traffic Safety Administration
• NSC - National Safety Council
• National Wetlands Inventory Center
• Oak Ridge National Laboratory
• RSPA - Research & Special Programs Administration
• SLSDC - St. Lawrence Seaway Development Corporation
• STB - Surface Transportation Board
• USCG - United States Coast Guard
• USGS Geological Survey