What is operating authority?
Operating authority is federal FMCSA registration — commonly called an MC number or MC authority — that every for-hire motor carrier, freight broker, and freight forwarder is required to obtain under 49 USC §13902before hauling or brokering freight across state lines. The FMCSA issues a unique MC number that appears on SAFER once the authority is active. Without it, a carrier's USDOT record reads “NOT AUTHORIZED” and interstate operation is illegal.