What lighting is required for a barge moored in a slip at night?

When a barge is moored in a slip at night, it typically is not required to display any navigation lights. This is because a barge at anchor or moored in a secure position within a slip does not pose the same risks as one that is underway, where the visibility of the vessel becomes critical for the safety of navigation. The requirement for lighting is geared towards ensuring vessels are visible to one another when they are moving or if they could potentially interfere with navigation. Therefore, since the barge is secured in a slip and does not impede navigation, no specific lighting is mandated.

This understanding highlights the distinction between vessels that are operational and those that are stationary and protected from navigation hazards.