What lights are required for vessels being towed alongside?

For vessels being towed alongside, the correct lighting requirements include both sidelights and a stern light. This is essential for ensuring that the vessel is properly illuminated for visibility and to communicate its presence to other vessels, particularly at night or during periods of reduced visibility.

Sidelights are required to indicate the port (red) and starboard (green) sides of the vessel, allowing other mariners to determine the direction it is facing. The stern light, positioned at the rear of the vessel, provides visibility from behind and indicates that the vessel is under tow. Together, these lights fulfill the regulatory requirements set forth in the Navigation Rules, ensuring safety in navigation and helping prevent collisions. The combination of both sidelights and a stern light effectively signals the vessel's status and promotes safe maritime practices.