When may an anchored vessel of less than 7 metres dispense with showing any anchor lights?

An anchored vessel of less than 7 metres is permitted to dispense with showing any anchor lights when it is at anchor outside of a fairway or navigated waters. This regulation is established to reduce light pollution and unnecessary complexity in light displays within areas that are not heavily trafficked or navigable by larger vessels. In such locations, the requirement for anchor lights is deemed less critical since the risk of collision or confusion with other vessels is significantly lower.

In contrast, when at anchor in busy channels, near shipping lanes, or displaying another vessel's lights, the presence of anchor lights becomes more relevant to ensure visibility and safety, as these situations typically involve a higher density of maritime traffic.