What color is the port (left) side light on a powerboat?

What color is the port (left) side light on a powerboat?

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

Answer: (B)

Navigation lights use a color system to show direction at night: red on the port (left) side, green on the starboard (right) side, and a white light at the stern. The left side light is red so other vessels can quickly tell which side of your boat is facing them and judge their passing clearance. Green is used for the right side, and the white light is the rear light seen from behind. Yellow isn’t used for the standard left-side navigation indication. So the port side light on a powerboat is red.

Navigation lights use a color system to show direction at night: red on the port (left) side, green on the starboard (right) side, and a white light at the stern. The left side light is red so other vessels can quickly tell which side of your boat is facing them and judge their passing clearance. Green is used for the right side, and the white light is the rear light seen from behind. Yellow isn’t used for the standard left-side navigation indication. So the port side light on a powerboat is red.