If you see a green and a white light, what is your status in relation to the other vessel?

When you see a green and a white light on another vessel, it signifies that you are approaching a power-driven vessel that is on a course that will not restrict its ability to maneuver. In this situation, the red light would typically indicate the port side of the other vessel. Therefore, seeing green (which indicates the starboard side of that vessel) and white suggests that you are not directly crossing the path but rather approaching from a position that gives you knowledge of their status.

As the stand-on vessel, you maintain your course and speed, allowing the other vessel, identified as the give-way vessel, to take the necessary action to avoid a collision. This is critical in navigation as it helps avoid confusion and ensures that vessels can operate safely and effectively in shared waters.

In contrast, the other answers suggest actions that are not appropriate for this scenario, such as sharply turning or stopping, which could introduce unnecessary risks or disrupt your navigation pattern when the best course of action is to maintain your speed and direction. Understanding these light signals and their implications is essential for safe boating practices.