(1) The holder of a fishing licence (vessel) must not use more than 2 auxiliary vessels from the fishing vessel specified in the fishing licence (vessel).Penalty: Grade 2 penalty.(2) The holder of a fishing licence (vessel) must cause the letter D to be displayed (a) on each side of the hull of an auxiliary vessel used under the licence; and(b) above or forward of the distinguishing mark painted or displayed on the auxiliary vessel in accordance with rule 16 .Penalty: Grade 2 penalty.