MCS-150 Biennial Update
Your biennial DOT update, filed on time — before FMCSA deactivates your number.
one-time
$50
The MCS-150 is the form that keeps your USDOT registration current. FMCSA requires an update every 24 months based on the last two digits of your USDOT number, whether or not anything changed. A missed update deactivates your number, which can strand your authority and cause roadside problems. We confirm your filing month, update your mileage, fleet size, and operation details, and file the MCS-150 directly with FMCSA — then send you the confirmation. There is no government fee for the update itself.
Who needs this
Any carrier with an active USDOT number due for its biennial update, or one already flagged inactive for a missed MCS-150.
What's included
- ✓Confirm your biennial filing month from your USDOT number
- ✓Update mileage, fleet size, and operation classification
- ✓File the MCS-150 directly with FMCSA
- ✓Filing confirmation emailed to you
- ✓Reminder before your next biennial deadline
Timeline
1 business day
Frequently asked questions
Do I have to update if nothing changed?
Yes. FMCSA requires the biennial update regardless of changes — a 'no changes' update is still a required filing.
What happens if I missed it?
Your USDOT number is deactivated. We can file the update to reactivate it; if your operating authority was also revoked, see MC Authority Reinstatement.
Is there a government fee?
No. The MCS-150 update itself has no FMCSA fee — you only pay our filing service.