What is a bill of lading?
The bill of lading, commonly abbreviated as BOL or B/L, is the single most important document in international ocean shipping. It serves three critical functions simultaneously. It is a receipt confirming the carrier has received the cargo. It is a contract of carriage between the shipper and carrier specifying the terms of transportation. It is a document of title that can be used to transfer ownership of the goods.
Getting the bill of lading wrong can result in cargo release delays, disputes over ownership, customs clearance problems, and financial losses.
Types of bills of lading
Master Bill of Lading (MBL)
The MBL is issued by the ocean carrier, meaning the shipping line that operates the vessel. It covers the movement of a container from port to port and is the primary contract between the carrier and the party who booked the container space, which is often a freight forwarder.
House Bill of Lading (HBL)
The HBL is issued by a freight forwarder or NVOCC (Non-Vessel Operating Common Carrier) to the actual shipper. When a freight forwarder consolidates multiple shipments into one container, each shipper receives an HBL while the forwarder holds the MBL.
Other variations
A straight bill of lading is non-negotiable and consigns goods to a specific party. An order bill of lading is negotiable and can be endorsed to transfer ownership. A telex release or sea waybill eliminates the need for original paper documents and speeds up cargo release at destination.
Key sections of a bill of lading
Shipper and consignee
The shipper is the party sending the goods, typically the seller or manufacturer. The consignee is the party receiving the goods. For order bills of lading, this may read "to order" or "to order of" a specific bank, which is common in letter of credit transactions.
Notify party
The party that should be notified when the cargo arrives at destination. This is often the consignee or their customs broker.
Vessel and voyage
The name of the vessel carrying your cargo and the specific voyage number. This information is essential for tracking your shipment.
Port of loading and port of discharge
Where the cargo was loaded onto the vessel and where it will be unloaded. For transshipment, there may also be intermediate port information.
Description of goods
A detailed description of the cargo including commodity description, number of packages, gross weight, and volume. This must match your commercial invoice and packing list. Discrepancies can cause customs delays.
Container and seal numbers
The container number is a unique identifier for each container, formatted as four letters followed by seven digits. The seal number confirms the container was sealed at origin and has not been opened during transit.
Freight terms
Indicates whether freight is prepaid, meaning paid by the shipper at origin, or collect, meaning payable by the consignee at destination. This aligns with the Incoterms agreed between buyer and seller.
Common bill of lading mistakes
Misspelled consignee names can prevent cargo release at destination. Incorrect weight or volume declarations can trigger port inspections. Wrong HTS or commodity descriptions create customs clearance issues. Using the wrong type of bill of lading for your transaction terms can cause payment and ownership disputes.
How ASR manages your documentation
Our team prepares and reviews all shipping documentation including bills of lading, commercial invoices, packing lists, and certificates of origin. We catch errors before they cause problems. Contact us at shipping@asrwe.com or +1 786 373 3003.



