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  1. Ask A Question - Transportation

    FMCSA Field Office: For assistance with interpreting what USDOT regulations mean for you and your company (Hours of Service, Safety Audit, Compliance Review) , please contact the …

  2. Chat - Transportation

    2 days ago · Inquiry Type Required USDOT or Operating Authority Drug & Alcohol Clearinghouse Launch Chat

  3. Chat - Transportation

    Dec 12, 2025 · Inquiry Type Required USDOT or Operating Authority Drug & Alcohol Clearinghouse Launch Chat

  4. Email - ask.fmcsa.dot.gov

    Submit a question to our support team. Our dedicated staff will respond within 48 hours.

  5. Chat - Transportation

    1 day ago · It is currently Saturday, Dec 20, 2025 01:45 AM EST

  6. Community Home Page

    Welcome To Our New Community You can use this community to get help from and collaborate with other users around the world. By logging in, you can find answers, stay informed, ask …

  7. Chat - Transportation

    Jul 19, 2025 · It is currently Saturday, Jul 19, 2025 04:46 AM EDT

  8. Answer-Detail - ask.fmcsa.dot.gov

    Dec 5, 2014 · You have the option to apply online or by sending the corresponding OP series form as applicable. Additionally, you will need to pay the appropriate fee of $300 per type of …

  9. 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. …

  10. Find Answers - ask.fmcsa.dot.gov

    Screen Reader users press enter to select a Filter by product. Filter by product Select a product Filter by category Select a category