What color is the tow light and how is it related to stern light?

• A. Red; used to indicate danger.
• B. Green; used to indicate safe passage.
• C. White; used as stern light.
• D. Yellow; same as stern light.

Answer: (D)

Tow light is amber (yellow). When a vessel is towing, it must display a yellow tow light in addition to the normal navigation lights. This extra signal is typically placed above the white stern light so other vessels clearly see that a tow is in progress. The stern light remains white and indicates the vessel’s stern, while the tow light serves as a separate warning that you’re towing, not a replacement for the stern light.