OAR 250-011-0150: Pilot Vessels

(1) A vessel engaged on pilotage duty shall exhibit: (a) At or near the masthead, two all-round lights in a vertical line, the upper being white and the lower red; (b) When underway, in addition, sidelights and a sternlight; and (c) When at anchor, in addition to the lights prescribed in section (1)(a) of this rule, the anchor light, lights, or shape prescribed in OAR 250-011-0160 for anchored vessels. (2) A pilot vessel when not engaged on pilotage duty shall exhibit the lights or shapes prescribed for a vessel of its length.