Legal Definitions - register tonnage

Definition: Register tonnage is the official measurement of the volume of a vessel that is available for commercial use. This measurement is recorded for taxation purposes and is also known as registered tonnage.

Example: A ship has a register tonnage of 10,000 tons. This means that the volume of the ship available for commercial use is 10,000 tons.

Explanation: Register tonnage is used to determine the amount of tax that a ship owner must pay. The higher the register tonnage, the higher the tax. The example illustrates how the register tonnage is used to measure the volume of a ship available for commercial use.