Question 662 Rules of the Road

The correct answer is D) towing astern. The lights shown in illustration D063RR depict the navigation lights required for a vessel that is towing another vessel astern. The two all-round white lights, one at the stern and one near the towing vessel's masthead, are the distinctive signals that identify a vessel engaged in towing operations. The other answer choices are incorrect because: A) a vessel "not under command" would display different navigation lights, B) a vessel "underway and more than 50 meters in length" would display a different configuration of navigation lights, and C) a "fishing" vessel would have a different set of navigation lights.