Admiralty Standard Navigation Charts.‘BA Charts’ and publications are in use by the majority of ocean-going commercial vessels. They cover the navigable areas of the world and are constantly monitored and kept up to date with the latest information by means of The Admiralty Notices to Mariners Issued weekly and numbered by week or year. Also Annual Summary NP 247 and a Cumulative list at six monthly intervals NP234A&B.
Port Approach Guides: These charts cover a single Port and contain all the information a Mariner might need when Planning a Port approach and complement the equivalent Standard Paper or Electronic Chart
Other Chart products Routeing Charts – For Passage Planning and Ocean Voyages & include distances between major Ports, monthly meteorological & oceanographic conditions
Instructional Charts For training and examination purposes. They are not maintained for the latest information and should not be used for navigation Tracks followed by Sailing and Auxiliary Powered Vessels, 5309, 5310 General Surface
Navigational hazards, buoyage systems, Pilotage, Regulations, General notes on Countries, Port facilities, Seasonal currents, ice and Climatic conditions. All volumes are updated by weekly Admiralty Notices to Mariners (section IV)
Mariners Handbook, NP100
Ocean Passages of the World – NP136 – Chart correction Log NP133A