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Symbols and Abbreviations on Maritime Charts

The publication provides an overview of symbols and abbreviations used for Norwegian nautical charts. The text is in both Norwegian and English.

This publication is an inventory of symbols and abbreviations used in Norwegian as well as in international nautical charts (INT-charts).

Symbols and Abbreviations on Norwegian Maritime Charts is prepared according to the guidelines recommended by the International Hydrographic Organization (IHO). The chart symbols are numbered according to «Chart Specifications of the IHO» (International Hydrographic Organization), which came into force at the XIIth International Hydrographic Conference 1982 in Monaco.

The publication is revised and issued as required. A new revised issue was published in 2020.


Symbols and Abbreviations

on Norwegian Maritime Charts (pdf 7,5 MB)

Norwegian chart symbols

Norwegian maritime charts contain mostly international symbols, but there are still some special Norwegian symbols appearing in some hardcopy maritime charts. In these cases the Norwegian chart symbol is compared to the corresponding international chart symbol


In Norwegian the publication is named Symboler og forkortelser i norske sjøkart. It also goes by the name INT 1 or the Norwegian INT 1. It is the Norwegian version of the publication INT 1 – Symbols, Abbreviations and Terms used on Charts.