The transport document is the single most consequential paper in an export shipment — banks generally won't release LC payment without the original, and the carrier generally won't release goods to a buyer without it either. Getting its status wrong can strand a shipment or kill a payment.
Bill of Lading (B/L) — for sea shipment
The B/L is unique among transport documents because it's negotiable — it's a document of title, meaning whoever legally holds it owns the goods. It serves three functions simultaneously: (1) a receipt confirming the carrier received the shipment, (2) the contract of carriage between exporter and shipping line, and (3) the document of title itself.
Key B/L status variants, and why they matter:
- Clean vs. claused ("dirty"): "Clean" means the carrier's captain confirmed goods were received in good order — no damage, shortage, or defects noted. A "claused" or dirty B/L means some problem was noted. Most LCs explicitly require a clean on-board B/L; a claused one will typically be rejected for payment purposes, regardless of how minor the noted issue is.
- On-board / shipped vs. received for shipment: the most common type confirms goods are actually loaded on the vessel. "Received for shipment" means the carrier has the goods but they aren't loaded yet — normally not acceptable where the LC requires proof of actual shipment.
- Stale: issued after the shipment deadline stated in the commercial terms/LC has already passed. A stale B/L is a real discrepancy and can trigger non-payment even if the shipment itself is otherwise fine — track your shipment deadline as carefully as the goods themselves.
- Through and trans-shipment: used when the journey involves multiple transport modes, or when goods change ships at an intermediate port rather than sailing directly. Neither is inherently a problem, but if an LC specifies "trans-shipment not allowed," a route requiring it will cause a document rejection — confirm the actual shipping route before agreeing to that condition.
- Freight paid vs. freight collect ("to pay"): whether ocean freight has already been settled by the shipper or is due at the destination — this must match the agreed Incoterm (e.g., a CIF shipment should show freight paid, not freight collect).
How a B/L is actually obtained: the ship's captain (or chief officer, "the mate") first issues a Mate's Receipt (MR) confirming goods were received on board and noting their condition (clean or damaged). The exporter combines this MR with a No Objection Certificate (NOC) from customs and from the port authority — confirming all dues are cleared — and only then does the shipping line issue the actual Bill of Lading. Skipping straight to "ask for the B/L" without these underlying steps in place is why B/L issuance can otherwise seem to stall unexpectedly.
Airway Bill (AWB) — for air shipment
Unlike the B/L, the AWB is not negotiable — it's always consigned to a specifically named consignee, never a bearer/order document. This is deliberate: air transport is fast enough that routing an original negotiable document through multiple banks would risk goods sitting stuck at the destination airport waiting for paperwork to catch up. Because of this, even a copy (fax, email, photocopy) of the AWB is generally sufficient for a named consignee to claim goods after showing proof of identity — the carrier is authorized to release goods under due diligence without the physical original.
Standard AWB structure: issued in three original copies with equal validity — typically one for the carrier, one for the consignee, one for the shipper — plus additional copies for other parties. It records shipper/consignee details, airports of departure/destination, flight details, declared value for carriage and for customs, weight and rate charges, and a nature- and-quantity-of-goods description.
Combined Transport Document (CTD)
Issued by a Multimodal Transport Operator (MTO) — a logistics company that manages an entire journey across several transport modes (e.g., truck, then sea, then rail) under one contract, similar in spirit to how a courier manages door-to-door delivery. Increasingly accepted by buyers and banks in place of a traditional B/L when goods move through more than one mode.
Road and rail equivalents
Road shipments use a consignment note (in India, called the Lorry Receipt, LR); rail shipments use a Railway Receipt (RR). Different name, same underlying function as a B/L or AWB for that mode — proof of receipt, the transport contract, and (to varying degrees depending on the document type) a basis for claiming the goods at the destination.
Practical rule
Before agreeing to any LC condition about the transport document (clean on-board required, trans-shipment not allowed, latest shipment date), make sure the actual physical shipping route and schedule can genuinely satisfy it — these conditions are exactly where shipments most often get held up for a documentation mismatch that had nothing to do with the goods themselves.