Top Requests
- Motor carrier companies – get a DOT number
- Find your state transportation department
- Drug and alcohol testing rules
- File a complaint against a trucking company
- Find information on car safety, vehicles, and parts
- Truckers – hours of service regulations
- Air travel problems & complaints
- Report airline security concerns to TSA
About DOT
- Updated: March 18, 2011
What We Do
Mission
The mission of the Department 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.
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.
Who We Are
Senior Staff
Organizational Structure
History
Performance, Budget, and Planning
DOT is committed to ensuring that information is available in appropriate alternative formats to meet the requirements of persons who have a disability. If you require an alternative version of files provided on this page, please contact the Chief Financial Officer at (202) 366-9603 or make your request via this link: REQUEST FOR ALTERNATIVE VERSION
General Contacts
Contact us at:
U.S. Department of Transportation
1200 New Jersey Ave, SE
Washington, DC 20590
202-366-4000
Or see our Contact Us page for more contact information.