C-Map Max-N+ Chart AN-Y250: Northern Japan (Update) Electrical Safety and the 90° angle is

and the 90° angle is helpful when determining lines of position

and the white lone star represents sovereignty

8030/8040/8050

and all personnel involved with containers throughout the transport chain

British Admiralty Nautical Chart  2443: United Arab Emirates and Iran

C-Map Max-N+ Chart AN-Y250: Northern Japan (Update) Electrical Safety and the 90° angle isWhy Update Your C Map Chart? Why Update Your C Map Chart? It is very important that the latest C Map charts are used when sailing out in the open water for safe navigation purposes. The C Map electronic chart libraries get updated twice a year to coincide with popular boating sessions. Included in the library updates are the latest notice to mariner updates from government hydrographic offices, updates to marina facilities, port services, photos and