manning regulation造句

This fleet is maintained as a subset of the French register that allows French-owned ships to operate under more liberal taxation and manning regulations than permissible under the main French register.
Ships built before that date were given 12 years to migrate from their existing gross register tonnage ( GRT ) to use of GT and NT . The phase-in period was provided to allow ships time to adjust economically, since tonnage is the basis for satisfying manning regulations and safety rules.
Gross tonnage is calculated based on " the moulded volume of all enclosed spaces of the ship " and is used to determine things such as a ship's manning regulations, safety rules, registration fees, and port dues, whereas the older gross register tonnage is a measure of the volume of only certain enclosed spaces.
It's difficult to find manning regulation in a sentence. 用manning regulation造句挺难的