United States Department of Transportation
Overview
 
The United States Department of Transportation (USDOT or DOT) is a federal Cabinet
United States Cabinet
The Cabinet of the United States is composed of the most senior appointed officers of the executive branch of the federal government of the United States, which are generally the heads of the federal executive departments...

 department of the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 government concerned with transport
Transport
Transport or transportation is the movement of people, cattle, animals and goods from one location to another. Modes of transport include air, rail, road, water, cable, pipeline, and space. The field can be divided into infrastructure, vehicles, and operations...

ation. It was established by an act of Congress
United States Congress
The United States Congress is the bicameral legislature of the federal government of the United States, consisting of the Senate and the House of Representatives. The Congress meets in the United States Capitol in Washington, D.C....

 on October 15, 1966, and began operation on April 1, 1967. It is administered by the United States Secretary of Transportation
United States Secretary of Transportation
The United States Secretary of Transportation is the head of the United States Department of Transportation, a member of the President's Cabinet, and fourteenth in the Presidential line of succession. The post was created with the formation of the Department of Transportation on October 15, 1966,...

.

Its mission 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."
Prior to the Department of Transportation, the Under Secretary of Commerce for Transportation administered the functions now associated with the DOT.
 
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