The Bill of Lading is one of the most critical documents in trade because it sits at the center of transport, payment, and ownership all at once. In letter-of-credit transactions especially, a single discrepancy can delay payment for days. This guide explains in plain terms what a B/L is, its three core functions, its types, and how it differs from other transport documents.
Bill of Lading (B/L): in sea freight it combines three functions in one document: evidence of the contract of carriage, a receipt, and a document of title that represents the goods. That third property is what separates it from a simple transport slip.
Three core functions
- Contract of carriage: evidence of the transport terms between carrier and shipper.
- Receipt: shows the goods were taken in charge in the stated condition. On a clean handover the document is “clean.”
- Document of title: represents the goods; with negotiable types, transferring the document transfers ownership.
Types of Bill of Lading
- Straight B/L: to a named consignee, not negotiable.
- Order B/L: transferable by endorsement; the most common type under an L/C.
- Bearer B/L: belongs to whoever holds it.
- Shipped on board vs received for shipment: the first shows the goods are loaded, the second only that they were taken in charge; an L/C usually requires on board.
B/L, AWB, and CMR
A B/L is for sea freight and is a document of title. An AWB (Air Waybill) for air and a CMR for road are transport documents but usually not documents of title; the goods are released to the named consignee without transferring the document. The core distinction: does the document represent ownership? For a B/L, yes; for an AWB/CMR, usually no.
The B/L under a letter of credit
Under an L/C, payment depends on the documents matching the credit terms exactly. The B/L must comply with UCP 600, be clean, and usually shipped on board; the port of loading, consignee, and goods description must be consistent with the credit. In an L/C lifecycle, the B/L is one of the most common sources of discrepancy.
Before issuing the B/L, compare it line by line with the L/C text: consignee/notify, goods description, port of loading, the on-board notation, and dates. Matching these five fields to the credit prevents most discrepancies up front.
Common mistakes
Wrong party details, a goods description inconsistent with the L/C, exceeding the latest shipment date, a missing on-board notation, and mismanaging the number of originals are the most common mistakes. Each creates a discrepancy and delays collection; under an L/C this can mean refusal of payment.
Keeping the document versioned
A B/L often goes through a few revisions, and it is easy to lose track of which version is valid, who approved it, and whether it matches the L/C. In a trade operations layer like Sighthem, documents such as the B/L, packing list, and CO are attached to the shipment record by slot and version, shared securely with the consignee or forwarder via a share link, and linked to the related L/C record, so the correct version is always clear.
Frequently asked questions
What is a Bill of Lading?
A Bill of Lading (B/L) is the transport document between carrier and shipper in sea freight, and it carries three functions at once: evidence of the contract of carriage, a receipt that the goods were taken in charge, and a document of title that represents the goods. Because of that last function, a B/L can be used to transfer ownership of the goods.
What are the types of Bill of Lading?
By how they transfer: straight B/L (to a named consignee, not negotiable), order B/L (transferable by endorsement, common under a letter of credit), and bearer B/L (belongs to whoever holds it). There is also the distinction between shipped on board, showing the goods are loaded, and received for shipment, showing only that they were taken in charge.
How do a B/L, an AWB, and a CMR differ?
A B/L is for sea freight and is a document of title (negotiable). An AWB (Air Waybill) for air and a CMR for road are transport documents but usually not documents of title; the goods are released to the named consignee without transferring the document. The core difference is whether the document represents ownership.
What is the role of the B/L in a letter of credit?
Under an L/C, payment depends on the documents matching the credit terms exactly. The B/L must comply with UCP 600, be clean, usually shipped on board, and consistent with the port of loading, consignee, and goods description in the credit. A small discrepancy in the B/L delays payment.
What are the most common B/L mistakes?
Wrong or missing party details, a goods description inconsistent with the L/C, a loading date past the latest shipment date, a missing on-board notation, and mismanaging the number of original copies are the most frequent issues. They create discrepancies and delay collection.