MC number in,
the whole federal record out.

A USDOT number identifies a company to the Department of Transportation — every carrier operating commercial vehicles in interstate commerce needs one. An MC number (docket number) is the FMCSA operating authority that permits for-hire transport of regulated commodities across state lines; brokers and freight forwarders get MC/FF dockets too. One company can hold several dockets, but every docket maps to exactly one USDOT number — which is what this lookup resolves.

Enter the MC number above — with or without the “MC-” prefix. The tool resolves the docket to the carrier’s USDOT number and returns the live federal Licensing & Insurance record: operating authority status for common, contract and broker authority, what insurance is on file (BI/PD, cargo, bond) with coverage amounts, the active filings with insurer and policy number, and the estimated renewal date.

Look up the broker’s MC number and check two things in the result: the Broker authority status (should be Active) and the bond/trust line (brokers must maintain a $75,000 BMC-84 surety bond or BMC-85 trust fund). If broker authority shows Revoked or the bond is not on file, don’t tender freight — and consider watching the MC with the free monitor so you’re emailed if anything changes.

The most common reason is an insurance lapse: when a carrier’s insurer files a cancellation, FMCSA moves the operating authority from Active to Inactive after the effective date. It can also mean the carrier voluntarily revoked authority or never completed registration. The card shows exactly which insurance is missing against what’s required, so you can see why.

Yes — free, no account. Anonymous visitors get 3 full lookups per day; add your email for 25 per day, still free. If you’re vetting carriers at volume — a brokerage checking every new carrier packet — Market Tracker runs unlimited lookups plus continuous monitoring over the same federal data.

Live from the FMCSA Licensing & Insurance datasets on data.transportation.gov — the same federal source behind the L&I portal, without the click-through and CAPTCHA. Nothing is cached beyond a few hours; every lookup reflects the current federal record for that docket.