U.S. Senate Committee on Commerce, Science, and Transportation
U.S. House Committee on Transportation and Infrastructure
U.S. Railroad Retirement Board
Uintah Railway Restoration Project, The
UK Bus Site
UK Railway Preservation
UK Railways on the Net
UK Railways on the Net
Union Pacific Historical Society
United Motorcoach Association
United Railroad Historical Society of New Jersey
United Transportation Union (Local 1594)
United Transportation Union (Local 1637)
University of Leeds WWW Transportation Sites
Urals State Academy of Railway Transport
Urban Mobility Network, The
Urban Transport News
URSALO: Home of the Newton Public Transportation Guide
US Department of Transportation
US Department of Transportation Bureau of Transportation Statistics
US Railfan
UTU Local 1637 (former SP&S line) by Jay Schollmeyer

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