The Merchant Shipping (Officer Nationality) Regulations 1995
These Regulations require that certain descriptions of United Kingdom ships serving a strategic function (i.e. cruise ships, fishing vessels, product tankers and ro-ro ships) carry as master persons who are Commonwealth citizens or nationals of other EEA States or NATO states. The Regulations apply to such ships of 500 tons or more, and fishing vessels of 24 metres or more in length.