Application and purpose. The system applies to all fixed and floating marks, other than lighthouses, sectors of lights, leading lights and marks, lanbys, certain large light floats and light vessels. Its purpose is to indicate: The sides and centrelines of navigable channels; Navigable channels under fixed bridges; Natural dangers and…
The boundaries of the two buoyage regions A and B in which the colours of the lateral marks and their lights are reversed, are shown in the following diagram:
Up till approximately 128 years ago there was no uniform system of buoyage among maritime nations. This was an unacceptable situation and in 1889 a number of countries got together and decided to do something about it. They agreed to mark the port side of channels with black can buoys…
