BOTH INTERNATIONAL & INLAND Which of the day-shapes shown in illustration D016RR below indicates a vessel with a tow exceeding 200 meters in length?

Correct Answer: Option B — B

COLREG Rule 24(a) and corresponding Inland Rules mandate that when the length of a tow exceeds 200 meters, the towing vessel must exhibit a diamond day-shape in a prominent position where it can best be seen, providing advance visual warning to approaching traffic regarding the restricted maneuverability.