BOTH INTERNATIONAL & INLAND A vessel is displaying ONLY the lights shown in illustration D053RR. What type of vessel is this?

Correct Answer: Option A — vessel engaged on pilotage duty underway

COLREG Rule 29 mandates that a pilot vessel on pilotage duty shall exhibit an all-round white light over an all-round red light at or near the masthead, plus sidelights and a sternlight when underway and making way.