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INT1 - Symbols, Abbreviations, Terms used on Charts

INT1 is based on the 'Chart Specifications of the IHO (International Hydrographic Organization)', which came into effect at the XII Hydrographic Conference in Monaco in 1982. The publication includes the complete set of symbols and abbreviations used on international and national charts produced by the Hydrographic Service of the Royal Netherlands Navy and the Flemish Hydrography.

Symbols and abbreviations displayed in navigation systems that use electronic charts may differ from those described in INT1.