What is MCS-150?
The Motor Carrier Identification Report used to register and update a USDOT number.
The MCS-150 records a carrier's name, address, operation type, cargo, power units, drivers and annual mileage. It is filed to get a USDOT number and must be updated every 24 months on a schedule set by the USDOT number.
Missing the biennial update can get the USDOT number deactivated and carries civil penalties.