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Which side of a vessel has a green light at night?

  1. Starboard

  2. Port

  3. Stern

  4. Bow

The correct answer is: Starboard

A vessel displays a green light on its starboard (right) side when viewed from the perspective of someone on the vessel facing forward. This is part of the navigation light system that helps to indicate the position and direction of the vessel to other boaters at night. The green light is visible from the side and from ahead, allowing other vessels to determine whether they are approaching the port or starboard side of the vessel in question. In contrast, a red light is displayed on the port (left) side, distinguishing between the two sides. The stern and bow refer to the back and front of the vessel, respectively, where navigation lights are also present but do not signify the side of the vessel. Understanding these identifiers is essential for safe navigation, ensuring that all boaters can operate their vessels with awareness of their surroundings and in accordance with maritime rules.