DOT Customer Service Center: 202-366-4000
Correspondence to the Department may be sent to:
U.S. Department of Transportation
1200 New Jersey Ave, SE
Washington, DC 20590
Please note: Correspondence must be addressed to a specific administration within the U.S. Department of Transportation, or the U.S. Postal Service will not be able to deliver it. A list of DOT administrations and their various responsibilities can be found on the DOT Agencies webpage.