Where might you find a fixed yellow light in relation to buoyage?

A fixed yellow light is typically associated with special purpose buoys. These buoys serve various important functions, such as marking areas for specific activities or hazards that are not encompassed by the standard lateral or cardinal buoy systems. For example, a special purpose buoy may indicate a research area, a submarine cable, or an anchorage area, which may warrant unique signaling that differs from conventional buoys.

In the context of buoyage systems, lateral buoys are primarily marked by red and green colors to indicate navigable channels, while mooring buoys are often white and may not have a light at all. Beacon markers, while sometimes equipped with lights, typically follow other color-coding conventions and do not specifically indicate special purposes like yellow. Therefore, the association of a fixed yellow light with special purpose buoys reflects its role in distinguishing particular navigational aids that serve specific functions, enhancing safety and situational awareness on the water.