Sea Freight · Documentation

What is a Bill of Lading? Types Explained

The Bill of Lading is the most important — and most misunderstood — document in international shipping. Unlike its airfreight cousin the AWB, it can be a document of title. That single fact changes how you ship, how you pay, and how you collect.

In one sentence

A Bill of Lading (B/L) is a document issued by a carrier to a shipper that performs three jobs: it is a receipt for the goods, a contract of carriage, and — crucially — it can be a document of title. Whoever holds the original negotiable B/L can claim the goods at destination.

That third function is what makes the B/L different from every other transport document. With an Air Waybill, anyone named as consignee just shows up and collects. With a negotiable B/L, you literally cannot release the goods without surrendering the original document — even if the consignee is standing at the port with a passport and a smile.

Why this matters for UK importers: "I haven't received the original B/L from the supplier" is the second most common cause of demurrage on UK imports (after customs delays). If your container is sitting at Felixstowe and the original is still in DHL transit from Shanghai, the demurrage clock is running.

The three jobs of a Bill of Lading

The main types of Bill of Lading

Original Bill of Lading (OBL / "negotiable B/L")
The classic, paper original. Issued in a set of three originals (any one of which surrendered against the goods makes the others void). The consignee must present at least one original to the carrier's destination office to obtain a delivery order. Used in letter of credit transactions and where the parties want the security of physical document control.
Risk: If the originals are lost, delayed, or destroyed in transit, the consignee cannot collect. The remedy involves a Letter of Indemnity backed by a bank guarantee — slow, expensive, and disliked by carriers.
Sea Waybill (SWB / "Express B/L")
A non-negotiable transport document. The named consignee on the SWB simply identifies themselves at destination — no original document needs to be surrendered. Functionally similar to an Air Waybill. Faster and simpler than an OBL, but offers no document-of-title protection. Suitable when the parties trust each other (intra-group trade, regular open-account trade) and the goods are not being on-sold during transit.
Increasingly common on UK trade lanes, particularly Asia–UK FCL imports under settled supplier relationships. Saves several days of admin and avoids the lost-original problem entirely.
Telex Release / Surrender B/L
A workaround when originals exist but you don't want to ship them physically. The shipper surrenders all original B/Ls to the carrier at origin, and the carrier sends a "telex release" message to its destination office authorising release without OBL presentation. Combines some of the OBL's negotiability flexibility with the practical speed of a Sea Waybill. Widely used on Far East–UK lanes.
Watch out for: Some carriers charge a "telex release fee" of £30–£75 per shipment. Most don't, but it's worth confirming before agreeing the term with your supplier.
Switch Bill of Lading
A second set of original B/Ls issued by the carrier to replace the original set. Used most commonly to: hide the identity of the original shipper from the final buyer (in re-sale or trans-shipment trades), change the consignee, or change the port of discharge. The original B/Ls must be surrendered before switch B/Ls are issued. The carrier must agree, and there are typically additional fees.
Straight Bill of Lading (non-negotiable named consignee)
An OBL marked "non-negotiable" and naming a specific consignee with no order or endorsement clause. Title cannot be transferred by endorsement. Effectively gives you the format of an OBL but the function of a Sea Waybill. Less common in modern UK trade — most parties go straight to a Sea Waybill if non-negotiability is the goal.
"To Order" Bill of Lading
An OBL where the consignee field is "to order" or "to order of [bank name]" — meaning the document can be transferred to whoever the named party endorses it to. The classic letter-of-credit B/L: the issuing bank holds the OBL until the buyer pays, then endorses it over. Without "to order" wording, an OBL is effectively a straight B/L and cannot be negotiated.
Master B/L vs House B/L
A Master B/L (MBL) is issued by the shipping line to the freight forwarder, covering the container as a whole. A House B/L (HBL) is issued by the freight forwarder to the individual shipper, covering that shipper's portion of an LCL consolidation (or a forwarder-managed FCL). For a UK importer using a freight forwarder, your operational document is the HBL — but the MBL is what the line uses internally and what appears on the customs entry alongside.
Direct shipments: If you book directly with a shipping line (rare for SMEs but common for large importers), there is only an MBL — no HBL.
Charter Party Bill of Lading
A B/L issued under a charter party (a contract for the hire of an entire vessel). Almost always seen in bulk and tanker trades — grain, oil, ore — never in containerised commerce. Banks generally refuse charter party B/Ls under letters of credit because the document references the underlying charter party contract, which the bank doesn't have.

Original B/L vs Sea Waybill — which to choose

FactorOriginal B/LSea Waybill
Document of titleYes — controls releaseNo — named consignee collects
Risk of lost documentSignificant — slow LOI processNone — no original to lose
Letter of credit compatibleYes (typical requirement)Usually no — banks reject
Cargo can be on-sold in transitYes — endorsement transfers titleNo — fixed consignee
Speed of release at destinationSlower — needs OBL surrenderFast — no document required
Suitable forLC trades, commodity trading, new suppliersOpen account, intra-group, trusted suppliers

What's actually printed on a B/L

Whether OBL or SWB, the data fields on a Bill of Lading are highly standardised:

The "on board" date matters: Under most letters of credit, the goods must be loaded on board by the latest shipment date. The "on board" date stamped on the B/L is the proof. Late shipment = bank discrepancy = LC payment delayed or refused. Always check this date the moment your B/L draft arrives.

Common B/L mistakes — and what they cost

Practical shipment example: A UK buyer pays for goods but the original bill of lading is still with the seller's bank. The container can arrive at Felixstowe, but the buyer cannot obtain release until the original B/L, telex release or sea waybill position is sorted. The document can matter as much as the container.

Related terms