BOTH INTERNATIONAL & INLAND Which vessel that is underway at night is required to display the lights shown in illustration D069RR below?

Correct Answer: Option A — engaged in trawling

Rule 26(a)(i) mandates that a vessel engaged in trawling shall display two all-round lights in a vertical line, the upper being green and the lower being white. This light configuration is the standard identification signal for trawlers, regardless of whether they are making way or not.