The licence holder must ensure that every fyke net, or fleet of fyke nets, used—
(a) is attached to—
(i) a spherical surface float measuring not less than 100 millimetres in diameter; or
(ii) a non-spherical surface float measuring not less than 100 millimetres in length with a width or diameter of not less than 90 millimetres—
which is clearly marked with the licence number; or
(b) is marked using an alternative means that is specified in the licence under regulation 33.