Question 738 Rules of the Road

The correct answer is A) is red in color. According to the U.S. Coast Guard's Navigation Rules and Regulations, a "flashing light" is defined as a light that is red in color and flashes at regular intervals. The definition does not specify that the light must flash at a frequency of 120 flashes or more per minute, or that it must be visible over an arc of the horizon of 360°. Therefore, option A is the only answer that accurately reflects the definition of a "flashing light" as provided in the rules. The other options, B and C, are incorrect because they include additional criteria that are not part of the official definition of a "flashing light" in the Navigation Rules and Regulations.