The Center for Infrastructure and Transportation Studies
The Center for Infrastructure and Transportation Studies (CITS) was established in 1993 to create a collaborative environment for multidisciplinary research focused on the systems that make societal activity possible within the built environment

United States Architectural and Transportation Barriers Board
United States Architectural and Transportation Barriers Board

The U.S. Department of Transportation (DOT)
The mission of the DOT is to serve the United States by ensuring a fast, safe, efficient, accessible and convenient transportation system that meets our vital national interests and enhances the quality of life of the American people, today and into the future.