NP5011 is primarily a key to symbols and abbreviations used on ADMIRALTY and International paper and raster charts and leisure folios compiled by the UKHO.
Variations may occur on charts adopted into the ADMIRALTY Series that were originally produced by another hydrographic office. where these symbols and abbreviations are easily understood they will not be included as examples in this publication. Symbols and abbreiations shown on Electronic Chart Display and Information System (ECDIS) may differ from those described in this document; a key to such symbols is available : NP5012

연도	항행통보 호수	항행통보 항수