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About DOT

What We Do

Mission

The mission of the U.S. Department of Transportation (DOT) is to ensure our Nation has the safest, most efficient and modern transportation system in the world, which improves the quality of life for all American people and communities, from rural to urban, and increases the productivity and competitiveness of American workers and businesses.

Statutory Authority

The Department of Transportation was established by an act of Congress on October 15, 1966. The Department’s first official day of operation was April 1, 1967.

Last updated: Wednesday, January 29, 2020