You may change the company address or phone number of your operating authority (MC number) record, by submitting your request following any of the options below:

• Online: Request reinstatement online via your FMCSA Portal account (Don't have an FMCSA Portal Account to Make Online Changes?)
• Paper: Send your completed and signed MCSA-5889 Form to us by submitting a ticket via our ASK website (scroll to the bottom of the page, complete the required fields, and upload your document). You will receive a confirmation number by email. Alternatively, you may fax a completed and signed MCSA-5889 Form to 202-366-3477. Paper submissions may take up 8 days for review and processing. 

Your completed form must contain:

• The MC number
• The name of the company
• The former and current addresses and telephone numbers
• Signature of the applicant or applicant's representative