What is the primary function of the International Regulations for Preventing Collisions at Sea (COLREGS)?

The primary function of the International Regulations for Preventing Collisions at Sea (COLREGS) is to ensure safe navigation and prevent collisions between vessels. This set of rules is designed to provide a uniform practical framework to minimize the risk of marine accidents, which can occur due to misunderstandings or lack of awareness between vessels operating in close proximity.

The regulations establish the responsibilities of vessel operators in various situations, detailing how they should navigate, signal, and maneuver to avoid collisions. By defining key concepts such as "stand-on" and "give-way" vessels, as well as establishing the proper use of navigation lights and shapes, COLREGS play a critical role in maritime safety.

While navigation lights are indeed a part of COLREGS, their purpose is more aligned with facilitating the overarching goal of collision prevention. Similarly, although recreational boating activities may be indirectly influenced by these regulations, the primary focus remains on the safe passage of all vessels, regardless of their type or purpose. Speed limits are not a component of COLREGS; instead, these might be set by local authorities or regulations governing specific waterways. Therefore, the emphasis on preventing collisions is what makes the second option the most accurate description of COLREGS' primary function.