When it comes to maritime navigation, the color of a ship's lights holds significant importance in determining its position and direction. In this case, the green light is shown on the starboard side of a ship. This is in accordance with the International Regulations for Preventing Collisions at Sea (COLREGs), which is a set of rules that govern the behavior of vessels at sea to prevent collisions.

By displaying a green light on the starboard side, a ship indicates to other vessels that it is the stand-on vessel in a crossing situation. This means that the ship has the right of way and should maintain its course and speed, while the give-way vessel (which would see a red light on the ship's port side) must take early and substantial action to keep out of the way of the stand-on vessel.

Understanding and following these rules is crucial for safe navigation on the water, whether you are a professional mariner or a recreational boater. By knowing which side to display the green light, you can communicate your vessel's status and intentions to others, helping to avoid potentially dangerous situations.

For more information on maritime navigation lights and rules, you can refer to the official COLREGs document, which outlines the requirements for lighting and signaling on vessels. Additionally, maritime training courses and resources are available to help individuals learn and understand the rules of the sea.

Overall, the green light on a ship should be shown on the starboard side to indicate its status as the stand-on vessel in a crossing situation. By adhering to these rules and understanding the significance of navigation lights, mariners can contribute to a safer and more efficient maritime environment for all.

For further details on maritime navigation rules and regulations, visit US Coast Guard Navigation Center or International Maritime Organization.

Sign Up