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- How can I reactivate my USDOT number?
- How do I change the company address for my motor carrier operating authority (MC number)?
- I want to inactivate/deactivate my USDOT number. Can I submit the request online?
- What is the difference between interstate commerce and intrastate commerce?
- How do I determine which of the 4 categories of commercial motor vehicle (CMV) operation I should self-certify to with my State Driver Licensing Agency (SDLA)?
- What do I need to do to reinstate my motor carrier operating authority (make my MC number active)?
- How do I change the company name for my motor carrier operating authority (OP-1 series)?
- What is Operating Authority (MC number) and who needs it?
- How can I suspend, put my operating authority (MC number) on hold or revoke it?
- How can I find out if my operating authority (active MC number) has been issued (granted)? Can I request a copy?