DOT numbers: Interstate commercial vehicles
If you operate a commercial vehicle across state lines, you must have a United States Department of Transportation (USDOT) number.
How to apply for a DOT number
To get a USDOT number, submit the following completed forms to the Federal Motor Carrier Safety Administration (FMCSA):
- Motor Carrier Identification Report (MCS-150).
- Safety Certification Application (MCS-150A).
How to get a copy of the forms
- Visit the . You may complete and submit the forms online, or print out copies of the forms and mail them to the address on the form.
- Call 800.832.5660 to have forms mailed to you.