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Definition of an Ocean Bill of Lading

An Ocean Bill of Lading (OBOL) is a legal document that represents a contract between a shipper and carrier of specified goods. The document acts as a receipt for the load of cargo, and as a legal contract between the shipper and carrier for their transportation.

To name this document an Ocean Bill of Lading indicates that the goods are being transported overseas. The type, quantity, condition and destination of the merchandise being shipped is detailed and confirmed by the carrier, so the instrument can serve as a receipt and also as an invoice with legal claim. As a negotiable OBOL represents ownership: it may be traded, bought or sold during cargo transport.


Providing records for a shipment of cargo is perhaps as old as shipping itself, but the advent of global trade in the Middle Ages made a flexible legal document of title necessary. This legal representation of ocean freight could be traded and sold to other parties without the actual goods on hand. The concept led to the Bill of Lading, making international transport of merchandise much more convenient.

England was an early center of mercantilism and its global trade was overseas—all bills of lading assume sea transport in British English. The term Ocean Bill of Lading is specifically used in the US to designate goods being shipped overseas, because a bill of lading in American English can mean any form of transport.


The document can serve in three legal roles, each of which has a different purpose under the law.

Receipt of Cargo
The primary use of an OBOL is as a legal receipt for cargo. The document is prepared and issued by the shipper after the goods are loaded aboard the transporting vessel. This legal instrument provides proof of shipment for insurance and customs obligations, as well as confirmation of a contract’s fulfillment.

Evidence of Carriage Contract
An OBOL may also serve to provide legal evidence of the existence of a contract between a shipper and a carrier. The document is issued by a carrier once the goods are received and carries the obligation to deliver the goods …

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