In the United States, the Federal Motor Carrier Safety Administration (FMCSA) is the agency responsible for regulating the commercial motor carrier industry. One of the ways the FMCSA tracks and monitors motor carriers is by assigning them an MC Number, which stands for “Motor Carrier Number”. An MC Number is a unique identifier that is assigned to a motor carrier company that operates in interstate commerce, which means transporting goods or passengers across state lines. This number is used by the FMCSA to identify the carrier and to ensure that they comply with federal safety regulations. To Obtain a MC#, Click Here For more information Click Here