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More Incoterms & Transport Documents

Master Bill of Lading

Also known as: MBL, Master B/L

A master bill of lading is the transport document issued by the actual ocean carrier to the party that booked the space — usually a freight forwarder or consolidator — covering the entire shipment or container as a single contract of carriage. When cargo is consolidated, the master bill represents the carrier-to-forwarder relationship for the whole box, while the individual shippers hold house bills for their portions. Distinguishing master from house bills is essential for understanding who is contractually responsible to whom, and for tracing a shipment through the layered relationships of modern freight forwarding.

The JFS takeLicensed customs broker · Filer 82G

You will almost never hold one, and that is the point. On a consolidated shipment your contract is with the forwarder, not the carrier — so when the box is short or damaged, your claim runs against whoever issued your house bill. The master is evidence you have to ask someone else for.

Related terms

House Bill of LadingA house bill of lading is the transport document issued by a freight forwarder or non-vessel-operating carrier to its customer, the actual shipper, covering that shipper's specific consignment within a larger consolidated movement.ConsolidationConsolidation is the practice of combining multiple smaller shipments, often from different shippers, into a single larger load — typically a full container or an air-cargo unit — to achieve the lower per-unit rates available to bulk movements.CarrierA carrier is the party that physically transports goods from one place to another under a contract of carriage — an ocean line, airline, trucking company, or railroad — and that issues the transport document evidencing receipt of the cargo and the terms of transport.

Reviewed by a licensed customs broker. Definitions are general information, not legal or customs advice for a particular shipment. Duty rates, tariff programs and agency requirements change frequently.