BOTH INTERNATIONAL & INLAND At night, a vessel displaying the lights shown in illustration D052RR below is doing which of the following?

Correct Answer: Option A — underway

Rule 26(b) prescribes an all-round green light over an all-round white light for a vessel engaged in trawling. When underway, the addition of sidelights and a sternlight indicates the vessel is actively moving through the water or underway, as depicted in the illustration.