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Can I go into my local FMCSA Division office to update my US DOT number?

No, MCS 150 updates must be done either online, fax or by mail:

  • Online: If your USDOT number is active, you can begin the online update process. 
  • By mail: Once you have completed the MCS-150 form, you must print the completed form and mail it to the address indicated on the form
  • Request the form by phone: You can call 800-832-5660 to have a form mailed to you. Once you have completed the form, you can mail it to the address indicated on the form
  • By fax: 703-280-4003

Last Updated : May 15, 2014