Q. Update Motor Carrier DOT Number
To find information about updating your USDOT number online using your US DOT number PIN, click here.
Another option is to update your USDOT record by filing an MCS-150 by mail. You can mail the forms to:
Federal Motor Carrier Safety Administration
Office of Registration and Safety Information (MC-RS)
1200 New Jersey Avenue SE
Washington, DC 20590
You can also fax the form to 202-366-3477.
Please put "update" on the MCS-150 form, and make all necessary changes. You can also call toll free 1-800-832-5660 to have a MCS-150 form mailed to you.
For more information about the biennial update required by the FMCSA, click here.