The MCS-150 form, also known as the Motor Carrier Identification Report, is a critical document for any trucking or transportation company operating in the United States. Required by the Federal Motor Carrier Safety Administration (FMCSA), this form plays a key role in helping your business stay compliant with federal regulations.
If you’re starting a new trucking business or updating an existing USDOT number, you’ll need to file the MCS-150. It gives the FMCSA a complete record of your operations—company details, fleet size, cargo types, miles driven, insurance, and safety classification, including whether you haul passengers or hazardous materials.
All motor carriers with a DOT Number must file a biennial MCS-150 update every two years. You’re also required to file an update whenever there’s a change in your business, such as a new company name, address, or if you add trucks to your fleet.