What color is the navigational light located on the port side?

What color is the navigational light located on the port side?

• A. Red
• B. Yellow
• C. Green
• D. White

Answer: (A)

Red is the color of the navigational light on the port side. This standard makes it easy for other mariners to identify a vessel’s orientation at night or in poor visibility: red indicates the left side, green indicates the right side, and white lights show those facing the stern or other specific positions. By quickly recognizing red on a vessel, you know you’re seeing its port side, which helps determine right-of-way and whether courses might cross.

Red is the color of the navigational light on the port side. This standard makes it easy for other mariners to identify a vessel’s orientation at night or in poor visibility: red indicates the left side, green indicates the right side, and white lights show those facing the stern or other specific positions. By quickly recognizing red on a vessel, you know you’re seeing its port side, which helps determine right-of-way and whether courses might cross.