An anchor light is one of the most important lights on your boat, while navigation lights are also vital, the anchor light serves a specific purpose: letting other vessels know your boat is anchored and stationary. Understanding how and when to use an anchor light ensures the safety of everyone onboard and helps you comply with boating regulations.
What Is an Anchor Light?
An anchor light is a white, all-around light that is visible from 360 degrees around the boat. It is typically mounted on the highest point of the vessel, such as the top of a mast on a sailboat or the highest point on a powerboat. According to the U.S. Coast Guard and most international regulations, the anchor light must be visible for at least two nautical miles.
The primary purpose of an anchor light is to signal to other vessels that your boat is anchored and stationary. This is particularly important at night or in low-visibility conditions, as it warns other boaters of your presence, helping to prevent someone from ramming you.
When Should You Use an Anchor Light?
You should use your anchor light whenever your boat is anchored at night or during times of reduced visibility, such as in fog or heavy rain.
There is one notable exception: if your boat is moored in a designated anchoring or mooring field, anchor lights may not be required. Always check local regulations to confirm specific requirements for your location.
Difference Between Navigation Lights and Anchor Lights
While both navigation lights and anchor lights are critical for safe boating, they serve different purposes and are used in distinct situations:
How Navigation Lights Work
Navigation lights are used when your boat is underway, meaning it is moving. These lights include red and green sidelights that indicate your boat’s position and direction of travel. Red will be on the port’s side and green on the starboard side.
Navigation lights must be turned on anytime your boat is in motion between sunset and sunrise or during low-visibility conditions.
How Anchor Lights on Boats Work
Anchor lights, on the other hand, are used only when your boat is stationary and anchored. Unlike navigation lights, the anchor light is a single, white, all-around light mounted at the highest point of the vessel. Its purpose is to signal that your boat is anchored and not moving.
Final Thoughts
Anchor lights are a simple yet essential part of boating safety. By understanding their purpose, knowing when to use them, and maintaining them properly, you can ensure the safety of everyone onboard and comply with navigation regulations.