
Chat - Transportation
1 day ago · Inquiry Type Required USDOT or Operating Authority Drug & Alcohol Clearinghouse Launch Chat
Ask A Question - Transportation
Visit our FMCSA Registration Forms page to find the latest version of the available forms, timeframes, and other useful information.
Account Assistance
Request your username If the email address you enter is in our system, we'll send you your username. If you don't have a username, we'll send you a link to set up an account instead. Email Address
Chat - Transportation
4 days ago · It is currently Saturday, Dec 20, 2025 01:45 AM EST
Email - ask.fmcsa.dot.gov
Submit a question to our support team. Our dedicated staff will respond within 48 hours.
Email - ask.fmcsa.dot.gov
About FMCSA About FMCSA Who We Are Mission Leadership Field Offices Budget Careers Contact Us Resources Frequently Asked Questions Registration FAQs Grants Resources for State and Local …