MCS-150 Biennial Update

FMCSA

US federalAwaiting academy review Last reviewed: not yet reviewed
This overview has not been confirmed as current by the academy. Treat it as background reading and check the official source before relying on it.

Every entity under FMCSA jurisdiction must update its registration (MCS-150) every two years, even when nothing has changed; failure deactivates the USDOT number.

The last digit of the USDOT number sets the month (1 = January … 9 = September, 0 = October): the update is due by the last day of that month. The next-to-last digit sets the year: odd → odd-numbered years, even → even-numbered years. An update is also required before operations begin.

Failure to file deactivates the USDOT number and may bring civil penalties of up to $1,000 per day (maximum $10,000). Filing is free. Mileage and power-unit counts in the update feed safety measurement. Updates are made in FMCSA's Motus system.

Official source: FMCSA

Educational information only. Requirements can change. Verify current requirements with the applicable government authority or qualified professional before acting.

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