Any vessel over 7 meters is required to show Navigation lights between sunset to sunrise and in any times of restricted visibility. See Rule 20, Application.
For a full list of Navigation Rules, see the link below.
The red and green lights on a boat are side lights and assist in determining the direction the boat is facing. Red lights are on the port, or left side, while green lights are on the starboard, or right side. If you see only one side light, you are looking at that side of the boat. If you see both lights at the same time, that means that the boat is either headed towards you or away from you. If the red light is to the right, the boat is coming towards you (Red-Right-Returning). If the green light is to the right, the boat is going away from you. See the associated link for US Coast Guard Navigational Rules of the Road
At night, boats are supposed to display navigational lights; these are red, green, and white. The lights are screened/shielded so that each light is only visible from a certain range of directions.If you are on a boat and can see the red, green, and white navigational lights from another boat all at the same time, you should watch out, because that means that it is moving directly toward you and there is the possibility of a collision.
A sailing vessel is approaching head-on. You must give way. The lights that are seen from the front of a small boat are red and green. They signify the port and starboard sides of the ship. Red is for the port (left) side and green is the starboard (right) side.
At night, boats are supposed to display navigational lights; these are red, green, and white. The lights are screened/shielded so that each light is only visible from a certain range of directions.If you are on a boat and can see the red, green, and white navigational lights from another boat all at the same time, you should watch out, because that means that it is moving directly toward you and there is the possibility of a collision.
At night, boats are supposed to display navigational lights; these are red, green, and white. The lights are screened/shielded so that each light is only visible from a certain range of directions.If you are on a boat and can see the red, green, and white navigational lights from another boat all at the same time, you should watch out, because that means that it is moving directly toward you and there is the possibility of a collision.
The green and white lights on a boat are very important for traveling at night. These lights indicate which end of the boat is which.
Properly, it is a white light, and elevated higher than the red/green lights on the front of the boat.
That a power driven ship is headed right for you. The green and red lights are the navigational side lanterns and the white light is the top light.
That a power driven ship is headed right for you. The green and red lights are the navigational side lanterns and the white light is the top light.
That a power driven ship is headed right for you. The green and red lights are the navigational side lanterns and the white light is the top light.
Another boat is approaching you. The red light is their port side and the green light is their starboard side. The port side is left.
Another boat is approaching you. The red light is their port side and the green light is their starboard side. The port side is left.