Key facts
| How often | Every 24 months, even with no changes |
|---|---|
| Filing month | Last digit of USDOT: 1 = Jan ... 9 = Sep, 0 = Oct |
| Filing year | Next-to-last digit odd = odd years, even = even years |
| Cost to file with FMCSA | Free |
| Miss it | USDOT number deactivation and possible civil penalties |
| Also update when | You change address, fleet size, cargo or operation type |
Step by step
Find your filing month and year
Use the last two digits of your USDOT number, or enter your number in the finder on this page.
Gather current numbers
Have your power unit count, driver count, cargo types and annual mileage for the last calendar year ready.
Sign in to FMCSA
Log in to FMCSA's registration system with your USDOT number credentials and open the biennial update.
Review every field and submit
Correct addresses, phone, email, fleet size and operation type, then submit. FMCSA doesn't charge for the update.
Check SAFER
Confirm the MCS-150 date on your SAFER company snapshot changed. Brokers check that date too.
Checklist
- Filing month and year confirmed from USDOT number
- Current power units and drivers counted
- Last year's mileage ready
- Address, phone and email correct
- Update submitted directly with FMCSA
- New MCS-150 date visible on SAFER
FAQ
Does it cost money to file the MCS-150?
No. Filing the biennial update directly with FMCSA is free. Third-party companies may charge to file it for you, and some send official-looking notices; you never have to pay one to file.
What if I missed my MCS-150 update?
File it as soon as possible through FMCSA. A missed update can deactivate your USDOT number, and running with an inactive number can lead to fines and put you out of service.
Do I need to file if nothing changed?
Yes. The biennial update is required every two years whether or not your information changed.
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Official sources
General information, not legal or tax advice. Rules change; confirm your exact situation with the agency linked above.