MCS-150

Definition

MCS-150 is the FMCSA Motor Carrier Identification Report that every USDOT holder must update every 24 months under 49 CFR §390.19T. Free to file. Contents include carrier operation type, power-unit count, driver count, cargo classification, and annual mileage. The biennial schedule is determined by the next-to-last digit of the USDOT and the file-update month corresponds. Missing the deadline triggers FMCSA deactivation; reinstatement requires payment ($275+) and refiling. There is no automatic agency reminder. The MCS-150 also exists in form MCS-150B (combined hazmat) and MCS-150C (intrastate hazmat) variants where applicable.