Includes comprehensive information on charts and publications and their use, promulgation of navigational information, including chart correcting data, the maritime environment including the sea, operations in ice, maritime meteorology, regulation of the maritime environment, and particular information on military and commercial operations at sea including piracy.It also contains the official text of the International regulations for the Preventing Collisions at Sea (1972), a comprehensive description of the IALA Maritime Buoyage System and a glossary of maritime terminology.