An MC Number, or Motor Carrier Number, is a legacy identifier issued by the Federal Motor Carrier Safety Administration to carriers that have been granted operating authority. It is used to identify businesses authorized to transport regulated goods or passengers in interstate commerce.
While the USDOT Number is used primarily for safety tracking, the MC Number is associated with a carrier’s operating authority. It indicates that the company has met specific regulatory requirements, including insurance coverage and compliance filings.
In recent years, the FMCSA has shifted toward using the USDOT Number as the primary identifier. However, MC Numbers are still widely used and remain relevant for regulatory and operational purposes.
Carriers that transport goods for hire across state lines typically require an MC Number. It is also used by brokers and shippers to verify a carrier’s authority status before entering into contracts.
The application process for an MC Number involves submitting detailed business information, obtaining insurance coverage, and completing required filings such as the BOC-3. Once approved, the carrier is granted authority to operate under federal regulations.
Although considered a legacy identifier, the MC Number continues to play a role in the trucking industry. It provides an additional layer of verification and helps ensure that carriers meet the necessary standards for interstate operations.
