Turn. This refers to the sequence in which a vessel is available for laytime when other vessels are meant to use the same cargo-handling berth or when cargo is available.

Tally. Upon delivery of cargo, the number of packages is checked by tally clerks. The information on tally clerks’ sheets is inserted on the mate’s receipts and bills of lading.

TBN. This abbreviation can be found in reports of fixtures and stands for "to be nominated". It usually refers to the name of a vessel that is not yet named by the owner.


Tallying. This is the recording of cargo coming into and going out of a ship (or warehouse, or container.)

Tarpaulins. In older, general cargo ships, before proceeding to sea it is customary to place three tarpaulins over the hatch covers, thereby ensuring watertightness. The tweendeck hatches may also be covered by a tarpaulin.


Tariff. This is the list of freight rates, surcharges and other charges and terms and conditions of carriage of goods. It can also be called the “rate book” and is generally published by a liner conference or even by independent liner operators.


Trimming. When certain bulk commodities are carried as cargoes on board vessels they have to be "trimmed" for safety and to maintain the ship's stability.

TEU (Twenty-foot equivalent unit). This is the space that would be occupied by a container having the international ISO standard external dimensions, one of which, the length, is 20 feet or 2.4 metres.


Terms. The essence of any contract, for example, a contract of carriage, is that each party to the contract has certain obligations to the other.

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