USDOT & MC Numbers
Why do I need a USDOT PIN and how do I get one?
Updated September 1, 2026
Your USDOT PIN is the credential that lets you access FMCSA's system and make changes to your own registration — updating your MCS-150, changing your address, updating fleet counts, and so on. Without it you generally can't self-service your record.
How to get one
FMCSA issues the PIN to the company at the address on file for the USDOT number. That's the important part: it goes to the registered address, not to whoever requests it. If your address on file is out of date, that's usually the first thing to fix.
Common problems
- The address on file is an old one, so the PIN never arrives
- The business moved and the MCS-150 was never updated
- The PIN went to a previous owner or a former dispatcher
If you're stuck in that loop — you need the PIN to update the address, but the PIN goes to the old address — that's a good moment to call us rather than keep re-requesting it.
This is general orientation, not legal or regulatory advice. Requirements change and vary by operation — confirm specifics with the relevant agency or a qualified advisor before acting on them.
Still stuck?
Check your carrier record, or talk to a compliance specialist.