When do the rules concerning lights need to be followed?

The rules concerning lights must be followed from sunset to sunrise and in restricted visibility because this is when the potential for collisions and navigation hazards is at its highest. During these times, it is crucial for vessels to display their appropriate navigation lights to signal their presence, position, and status to other vessels. This enhances safety at sea by increasing visibility and allowing other mariners to identify the type of vessel, its direction, and activity, ensuring safe navigation in both dark conditions and situations where visibility is limited due to fog, rain, or other factors. Adhering to these lighting rules is essential for maintaining effective situational awareness among all vessels operating in proximity to one another.