The holder of a fishing licence (octopus) must not set an octopus pot unless (a) the octopus pot is attached to a longline; and(b) each end of the longline is securely attached to a surface buoy; and(c) each surface buoy attached to the longline is clearly and legibly marked with (i) the distinguishing mark in respect of the fishing vessel for which the octopus pot is used; and(ii) the letters "OP" .Penalty: Grade 1 penalty.