10/24/2025
FMCSA Biennial Update (Form MCS-150)
What It Is
The Biennial Update is a required report filed with the Federal Motor Carrier Safety Administration (FMCSA) to keep your company’s information current in the USDOT database.
Even if your business hasn’t changed or no longer operates vehicles, the update must still be filed.
Who Must File
Any company with a USDOT number, including:
Trucking companies
Bus companies
Owner-operators
TPAs or testing facilities that transport samples or operate DOT-registered vehicles
When to File
You must file every two years, based on the last two digits of your USDOT number:
USDOT Number Ending
Must File By (Month)
1
January
2
February
3
March
4
April
5
May
6
June
7
July
8
August
9
September
0
October
Then —
Even-numbered years if the next-to-last digit is even (e.g., 12, 34).
Odd-numbered years if the next-to-last digit is odd (e.g., 11, 35).
Example: USDOT 1234567 → file by July of odd years (2025, 2027, etc.).
How to File
Go to the FMCSA portal: https://portal.fmcsa.dot.gov
Log in or create an account.
Complete Form MCS-150.
Verify company name, address, and contact info
Update vehicle counts, mileage, and operation type
Submit electronically (instant update).
Penalties for Not Filing
Deactivation of USDOT number
Fines up to $1,000 per day (max $10,000)
Delays or rejection of new authority applications