Reference
Ocean freight & supply chain glossary
100 terms from container shipping, ports, customs and emissions — each in a sentence or two. Search, or open a category.
Documents12 terms
- Bill of Lading (B/L)
- The carrier's receipt for cargo, the contract of carriage and, in its negotiable form, a document of title to the goods.
- Master Bill of Lading
- The bill issued by the ocean carrier to the freight forwarder who booked the space.
- House Bill of Lading
- The bill issued by a freight forwarder or NVOCC to the actual shipper, sitting underneath the master bill.
- Sea Waybill
- A non-negotiable transport document. Faster than a bill of lading because no original paper must travel to release the cargo.
- Air Waybill (AWB)
- The transport document for air cargo: eleven digits beginning with a three-digit airline prefix. Not a document of title.
- Commercial Invoice
- The seller's bill to the buyer, used by customs to assess value, duty and tax.
- Packing List
- An itemised statement of what is inside each package or container, used for checking and customs inspection.
- Certificate of Origin
- A document declaring where goods were manufactured, used to claim preferential duty rates under trade agreements.
- Letter of Credit (LC)
- A bank's undertaking to pay the seller once specified documents are presented, used where buyer and seller do not yet trust each other.
- Cargo Manifest
- The complete list of all cargo aboard a vessel, submitted to port and customs authorities.
- Delivery Order
- The instruction authorising a terminal or warehouse to release cargo to a named party.
- Arrival Notice
- The carrier's notification to the consignee that a shipment has arrived and charges are due.
Containers and equipment12 terms
- Container Number
- The unique identifier of a container: four letters and seven digits under ISO 6346.
- Check Digit
- The final digit of a container number, calculated from the other ten characters to detect typing errors.
- ISO 6346
- The international standard governing container identification, marking and coding.
- BIC Code
- The three-letter owner prefix assigned by the Bureau International des Containers.
- TEU
- Twenty-foot equivalent unit, the standard measure of container capacity. One twenty-foot box equals one TEU.
- FEU
- Forty-foot equivalent unit, equal to two TEU.
- Dry Container
- The standard general-purpose container, enclosed and unrefrigerated. The large majority of ocean boxes.
- Reefer Container
- A refrigerated container with its own powered cooling unit, used for perishables and pharmaceuticals.
- Flat Rack
- A container with no sides or roof, used for oversized or awkwardly shaped cargo.
- Tare Weight
- The weight of an empty container, marked on its door and subtracted to find the cargo weight.
- Payload
- The maximum weight of cargo a container may legally carry, being its gross weight less tare.
- Seal Number
- The identifier of the tamper-evident seal fitted after loading, recorded so interference can be detected.
Vessels and voyages11 terms
- AIS
- The Automatic Identification System, by which vessels broadcast identity, position, speed and heading to shore stations and satellites.
- IMO Number
- A permanent seven-digit identifier for a vessel that never changes, even if the ship is renamed or reflagged.
- MMSI
- The Maritime Mobile Service Identity, a nine-digit number identifying a vessel's radio, transmitted with every AIS message.
- Voyage Number
- The identifier of one specific sailing of a vessel, since the same ship repeats a route many times.
- Draft
- How deep a vessel sits in the water. Determines which ports and canals it can enter.
- Deadweight Tonnage
- The total weight a vessel can carry including cargo, fuel, water and stores.
- Knot
- One nautical mile per hour, the standard measure of vessel speed. Container ships typically sail at 14 to 22 knots.
- Heading
- The compass direction a vessel is pointing, broadcast continuously over AIS.
- Transshipment
- Moving cargo from one vessel to another at an intermediate port rather than sailing direct.
- Feeder Vessel
- A smaller ship that carries containers between a regional port and a major hub.
- Slow Steaming
- Deliberately sailing below design speed to cut fuel consumption and emissions, at the cost of transit time.
Ports and terminals12 terms
- Port of Loading (POL)
- The port where cargo is loaded onto the ocean vessel.
- Port of Discharge (POD)
- The port where cargo is unloaded from the ocean vessel.
- Place of Delivery
- The final contractual destination, which may be inland and reached by rail or road after discharge.
- Terminal
- The facility within a port where vessels are worked and containers are stacked, gated and handed over.
- Berth
- The specific position at a quay where a vessel ties up to be loaded and unloaded.
- Quay
- The built structure along the water where vessels berth. Pronounced 'key'.
- Gantry Crane
- The large rail-mounted crane that lifts containers between vessel and quay.
- Container Yard
- The stacking area inside a terminal where containers wait between sea and land legs.
- Gate-in
- The event recorded when a container enters a terminal by road or rail.
- Gate-out
- The event recorded when a container leaves a terminal.
- Port Congestion
- A backlog of vessels waiting to berth because terminal capacity is exceeded, stretching transit times region-wide.
- Berthing Window
- The time slot a terminal allocates to a vessel for arrival and working.
Time and status11 terms
- ETD
- Estimated time of departure from the port of loading.
- ETA
- Estimated time of arrival at the port of discharge.
- ATD
- Actual time of departure, recorded once the vessel has sailed.
- ATA
- Actual time of arrival, recorded once the vessel has berthed.
- Transit Time
- The elapsed time from departure at origin to arrival at destination, usually quoted port to port.
- Cut-off Time
- The latest moment cargo or documentation can be submitted for a given sailing.
- Free Time
- The period during which a container may sit at the terminal or with the consignee before charges begin.
- Last Free Day
- The final day of free time, after which demurrage or detention starts accruing.
- Rollover
- When a container does not sail on its booked vessel and moves to a later one, typically costing a week.
- Dwell Time
- How long a container remains in a terminal between arrival and onward movement.
- Milestone
- A recorded status event in a shipment's journey, such as gate-in, loaded, departed or discharged.
Charges and rates13 terms
- Demurrage
- A daily charge for a full container remaining inside the terminal beyond its free time.
- Detention
- A daily charge for keeping the carrier's container outside the terminal beyond the agreed free period.
- Freight Rate
- The base price for moving a container between two ports, before surcharges.
- BAF
- Bunker Adjustment Factor, a surcharge reflecting changes in marine fuel prices.
- THC
- Terminal Handling Charge, levied by the terminal for moving a container between vessel and yard.
- Peak Season Surcharge
- A temporary surcharge applied when demand on a trade lane exceeds available capacity.
- Drayage
- Short-distance road transport of a container, typically between port and warehouse.
- Accessorial Charge
- Any charge beyond the base freight rate, such as waiting time, storage or special handling.
- All-in Rate
- A quoted price that already includes surcharges, giving one number for the whole move.
- Spot Rate
- The market price for immediate shipment, which moves with supply and demand.
- Contract Rate
- A price fixed with a carrier for an agreed volume over an agreed period.
- GRI
- General Rate Increase, a carrier's across-the-board rate rise announced on a trade lane.
- Chargeable Weight
- The greater of actual and volumetric weight, used to price cargo that is bulky but light.
Parties and roles10 terms
- Shipper
- The party sending the goods, named on the bill of lading. Usually the seller.
- Consignee
- The party entitled to receive the goods at destination, named on the bill of lading.
- Notify Party
- The party a carrier informs on arrival, often a customs broker acting for the consignee.
- Freight Forwarder
- An intermediary that arranges transport on the shipper's behalf without operating vessels.
- NVOCC
- A non-vessel operating common carrier: issues its own bills of lading and resells space it buys from vessel operators.
- Carrier
- The party that physically performs the transport, in ocean freight the vessel operator.
- Customs Broker
- A licensed agent who clears goods through customs on the importer's behalf.
- Terminal Operator
- The company that runs a container terminal, often distinct from the port authority.
- 3PL
- A third-party logistics provider, outsourcing transport, warehousing and fulfilment as a package.
- Beneficial Cargo Owner
- The company that actually owns the cargo and takes delivery, as distinct from any intermediary.
Trade and customs9 terms
- Incoterms
- Standard trade terms published by the International Chamber of Commerce, defining who pays for and bears risk over each part of a shipment.
- EXW
- Ex Works: the buyer collects from the seller's premises and takes on all transport cost and risk.
- FOB
- Free On Board: the seller's responsibility ends once goods are loaded on the vessel at the named port.
- CIF
- Cost, Insurance and Freight: the seller pays ocean freight and insurance to the destination port.
- DDP
- Delivered Duty Paid: the seller bears all cost and risk to the buyer's door, including import duty.
- HS Code
- The Harmonized System code classifying a product for customs, determining duty rates worldwide.
- Customs Clearance
- The process of obtaining permission from customs to import or export goods.
- Bonded Warehouse
- A facility where imported goods are stored with duty suspended until they are released.
- Duty
- A tax levied on imported goods, calculated from their HS code, declared value and origin.
Load types and emissions10 terms
- FCL
- Full container load: your cargo fills a container booked for you alone.
- LCL
- Less than container load: your cargo shares a container with other shippers and is consolidated en route.
- Breakbulk
- Cargo shipped in individual pieces rather than containers, such as machinery or steel.
- Bulk Cargo
- Unpackaged commodities loaded loose into a vessel's hold, such as grain, ore or coal.
- Ro-Ro
- Roll-on roll-off: vessels for wheeled cargo that drives aboard rather than being lifted.
- Intermodal
- Moving the same container across sea, rail and road without handling the cargo inside it.
- Consolidation
- Combining several shippers' cargo into one container to reduce cost per unit.
- Scope 3 Emissions
- Indirect emissions in a company's value chain, including bought-in transport. Ocean freight you pay for is Scope 3 for you.
- CO2e
- Carbon dioxide equivalent: a single figure expressing the warming effect of all greenhouse gases in a shipment.
- TEU-kilometre
- One twenty-foot equivalent unit moved one kilometre, the standard denominator for freight emissions factors.
