Register Tonnage

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Related to Register Tonnage: Net Tonnage, Deadweight tonnage

register tonnage

[′rej·ə·stər ′tən·ij]
(naval architecture)
The available gross tonnage of a ship for transport of freight or passengers.

Register Tonnage


of a vessel, the volume of the internal areas of a merchant vessel. Register tonnage serves as a description of the size of a vessel and is figured in register tons (1 register ton equals 100 cubic feet or 2.83 cu m).

A distinction is made between gross register tonnage, which is the volume of all internal ship areas with the exception of a few ballast tanks and so forth, and net register tonnage, which is the volume of the space available for cargo and passengers. Register tonnage is confirmed by a certificate of measurement issued by a classification society. The rules for determining register tonnage are established by international or local rules for the measurement of vessels, such as the rules of the Panama or Suez canals. The taxes and duties charged for ships, including those for use of moorings or for pilot service, depend on the register tonnage.

References in periodicals archive ?
The changes to Pilbara Ports Authority's fees would be limited to a 17 per cent increase in shipping fees levied on a vessel's gross register tonnage at the ports of Dampier and Port Hedland only.
Genting Group, under the leadership of Tan Sri Lim Kok Thay, will build the 200,000 GRT (gross register tonnage) international cruise terminal port which will be the largest passenger cruise port in Vietnam.
To be built for cruise line Star Cruises, the new global class passenger vessel will be over 340m long, 45m wide and have a gross register tonnage of 200,001.