Free MC Number Lookup

MC (Motor Carrier) is the FMCSA docket assigned to for-hire carriers, freight brokers, and freight forwarders who operate in interstate commerce. It's how the FMCSA tracks who has operating authority. MC numbers are up to 8 digits, usually prefixed "MC-". Brokers and shippers routinely verify a carrier by MC number before moving a load.

MC - Motor Carrier (domestic interstate for-hire carriers). FF - Freight Forwarder. MX - Mexican motor carrier operating in the US. All three are "docket numbers" issued by FMCSA on the same system. Our lookup handles all three.

New MC applications go through FMCSA processing after the application is filed. FMCSA controls the timing: a 10-day protest period follows publication in the FMCSA Register (49 CFR 365.203T), and the BOC-3 and BMC-91 must be on file within 20 days of publication (49 CFR 365.109T). Until FMCSA grants the authority, the docket exists in FMCSA's system but may not resolve via the public search API.

The MC docket exists but FMCSA has not granted, or has revoked, the authority. The usual causes are a missing insurance filing (BMC-91) or BOC-3, or a pending application. UCR is a separate annual registration and is not a condition of operating authority.

Causes include a cancelled insurance filing, a missing BOC-3 or an unpaid civil penalty. A missed MCS-150 deactivates the USDOT number rather than revoking the authority. Revoked authorities can be reinstated once the cause is cleared; the request can be prepared and submitted for you at fastreinstatementfiling.com.