MCS-150 Update Guide | Federally Required Biennial Filing
Companies or individuals holding a USDOT number must file the MCS-150 form with FMCSA every two years to ensure information accuracy. Failure to update on time may result in suspension or fines.
Quick Check: Do You Need to Update?
USDOT numbers only. If you need to register, click here.
Why Do I Need to Update MCS-150?
- Required by federal regulation every 2 years
- Keep your USDOT number active
- Avoid penalties (up to $1,000/day)
- Ensure FMCSA system is up to date
- Prevent service interruptions or number deactivation
Operations Suspended
Failure to update may result in suspension of your USDOT number.
Reactivation Required
To reactivate a suspended number, you must refile the MCS-150 form.
Mandatory Update
If your last update was long ago, the system may require an immediate update to avoid deactivation.
Frequently Asked Questions (FAQ)
Yes. Even if you’re no longer operating, you must update and indicate “Out of Business” in the form.
Typically, newly registered USDOT numbers must complete the first update in the same month of the following year.
You may be marked “Out of Compliance.” It’s strongly recommended to update as soon as possible to avoid further consequences.
FMCSA MCS-150 Filing Month Reference
| Last Digit of USDOT | Filing Month |
|---|---|
| 1 | January |
| 2 | February |
| 3 | March |
| 4 | April |
| 5 | May |
| 6 | June |
| 7 | July |
| 8 | August |
| 9 | September |
| 0 | October |