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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)

I am no longer operating. Do I still need to file MCS-150?

Yes. Even if you’re no longer operating, you must update and indicate “Out of Business” in the form.

I just applied for a USDOT number. When do I need to file my first update?

Typically, newly registered USDOT numbers must complete the first update in the same month of the following year.

What happens if I miss the update deadline?

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 USDOTFiling Month
1January
2February
3March
4April
5May
6June
7July
8August
9September
0October