NGA Nautical Chart 73030: Kepulauan Schouten to Teluk Yos Sudarso Atlantic Ocean Dartmouth Harbour is a standard

Dartmouth Harbour is a standard nautical chart

British Admiralty Nautical Chart 1200: England – East Coast

and their implementation and adoption is not mandatory

British Admiralty Nautical Chart 3311: Approaches to Novorossiysk is a standard nautical chart

NGA Nautical Chart 73030: Kepulauan Schouten to Teluk Yos Sudarso Atlantic Ocean Dartmouth Harbour is a standardThe chart you are viewing is a NGA standard nautical chart. The National Geospatial Intelligence Agency (NGA) has partnered with OceanGrafix to provide commercial and recreational mariners with a good source of nautical chart coverage for international waters. These charts are "printed on demand" but do not contain the latest notice to mariner (NTM) corrections. It is the mariner's responsibility that the necessary chart corrections be applied to