(1)A United Kingdom fishing vessel of less than 12 metres in length shall carry a lifejacket of an appropriate size for each person on board and extra lifejackets as follows—
(a)if lifejackets of different sizes are required to be carried, at least one extra lifejacket of each size;
(b)otherwise one extra lifejacket if there are 10 or fewer persons and two extra lifejackets if there are 11 or more.
(2)The lifejackets shall comply with the requirements for the time being of Part I or, as the case may be, Part II of Schedule 11 to the [S.I. 1975/330] Fishing Vessels (Safety Provisions) Rules 1975 (general requirements for lifejackets).