22.29 Pilot vessels
Maritime Rules Part 22: Collision Prevention
(1) A vessel engaged in pilotage duties must exhibit at or near the masthead, two all-round lights in a vertical line, the upper being white and the lower red, and
(a) when underway, sidelights and a sternlight; and
(b) when at anchor the light, lights or shape prescribed in rule 22.30 for vessels at anchor.
(2) A pilot vessel when not engaged on pilotage duties must exhibit the lights or shapes prescribed for a vessel of its length.