What constitutes a "flashing light" according to maritime regulations?

A "flashing light" in maritime regulations is defined as a light that flashes at regular intervals, specifically at a frequency of 120 flashes or more per minute. This definition is key for identifying markers, signals, or navigational aids at sea. Such lights serve specific purposes, such as indicating the presence of navigational hazards or guiding vessels into safe passages.

The clarity of the definition helps mariners distinguish between different types of lights based on their flashing characteristics. A light that flashes continuously without any established intervals would not qualify as a "flashing light" under the regulations because it lacks the necessary periodicity that defines this category. Similarly, irregular intervals or a flash rate of 60 flashes per minute do not meet the specific criteria established by maritime standards for defining a flashing light. Understanding these specifications is crucial for safe navigation and compliance with COLREGs.