You must complete your biennial update every two years. The month in which your update is due will depend on the last digit of your USDOT number. If your USDOT number ends in 1, for example, your update is due in January. USDOT numbers ending in 2 must be updated in February, and so on.

When should I update biennial?

Biennial Updates

You are required to provide this update every two years even if your company has not changed its information, has ceased interstate operations since the last update, or is no longer in business and you did not notify FMCSA.

When should I update my MCS-150?

The biennial update is a requirement set by the FMCSA to update your MCS-150 Form (also called the Motor Carrier Identification Report) every two years, keep in mind some states actually require you to update it every year as part of renewing your truck/fleet registration.