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 Federal Motor Carrier Safety Administration (FMCSA) website. 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.