Question 536 Rules of the Road

The correct answer is C) vessel towing astern. The lights shown in illustration D079RR depict the required navigation lights for a vessel towing astern. According to the International and Inland Navigation Rules, a vessel engaged in towing another vessel must display a yellow towing light in a vertical line above the sternlight(s) of the vessel being towed. The other answer choices are incorrect because: A) a law enforcement vessel would display different lights, B) a vessel constrained by draft would display different lights, and D) a vessel not under command would display different lights.