Department of Transportation

About the agency
The United States Department of Transportation (USDOT or DOT) is a federal Cabinet department of the U.S. government concerned with transportation.

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Subagencies

 * Federal Aviation Administration
 * Federal Highway Administration
 * Federal Motor Carrier Safety Administration
 * Federal Railroad Administration
 * Federal Transit Administration
 * Maritime Administration
 * National Highway Traffic Safety Administration
 * Office of the Inspector General
 * Office of the Secretary
 * Pipeline and Hazardous Materials Safety Administration
 * Saint Lawrence Seaway Development Corporation
 * Surface Transportation Board