United States Department of Transportation
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![The seal of the U.S. Department of Transportation prior to 1980.](/Images/godic/202502/17/US-DeptOfTransportation-Seal1980.svg5313.png")
The United States Department of Transportation (USDOT or DOT) is a federal Cabinet department of the U.S. government concerned with transportation. It was established by an act of Congress on October 15, 1966, and began operation on April 1, 1967. It is governed by the United States Secretary of Transportation.