Please send your suggestions, comments or questions, as well as messages for the Secretary and other Department of Transportation officials, to dot.comments@dot.gov

A team of information specialists answer every message sent from this home page. The information specialists process mail Monday-Friday (7:30 a.m. - 5:00 p.m. Eastern Time), except on federal holidays. Mail sent late Friday or over the weekend will not be reviewed until the following Monday. We try to respond to you within 4 business days.

Scan our top Frequently Asked Questions:

Quick find: Airlines   -- Register a Complaint   -- Airline Statistics   -- Air Travel Tips Automobiles   -- Import a vehicle into the U.S.   -- Vehicle safety/defect hotline   -- Vehicle safety standards   -- Accident statistics Hazardous Materials   -- Hazardous Materials Safety International Travel   -- International Drivers' Licenses   -- Passports State Transportation Issues   -- Road conditions/construction, traffic signals, and traffic statistics   -- Driver/vehicle registration (DMV) Trucking   -- Get a DOT Number   -- Register a complaint   -- Drug and alcohol policy for commerical drivers   -- Ask a question about motor carrier regulations

Correspondence to the Department may be sent to:

U.S. Department of Transportation
1200 New Jersey Ave, SE
Washington, DC 20590

Directions to the U.S. Department of Transportation Headquarters

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. If you are not sure which administration to contact, feel free to e-mail dot.comments@dot.gov for assistance.

And you can call us at the General Information Main Switchboard at: 202-366-4000 Monday through Friday between 8:30 am and 5:30 pm EST excluding Federal Holidays.

Deaf, hard of hearing, and speech impaired callers may contact the general information switchboard using the Federal Relay Services:

• TTY = 1-800-877-8339
• Voice = 1-866-377-8642
• VCO = 1-877-877-6280