Which of the following describes the color and rate of a special flashing light used on a tow?

• A. Red, 50 to 70 Flashes Per Minute
• B. White, 60 to 80 Flashes Per Minute
• C. Yellow, 50 to 70 Flashes Per Minute
• D. Yellow, 80 to 100 Flashes Per Minute

Answer: (C)

When a vessel is towing, other mariners need a clear, distinctive signal that shows this operation is underway. The special flashing light used for a tow is yellow (amber) and it must flash at a rate of 50 to 70 times per minute. This specific color and pace make the signal easy to recognize at night or in poor visibility and prevent confusion with other lights or signals. The yellow flashing light serves as a warning that the vessel is engaged in towing and may have limited maneuverability, so nearby vessels should adjust their actions accordingly.