U.S. Chart No. 1
Nautical Chart Symbols
Abbreviations & Terms
Chart No. 1: Nautical Chart Symbols, Abbreviations and Terms provides descriptions and depictions of the basic elements and symbols used on nautical charts published by the National Oceanic and Atmospheric Administration (NOAA) and the National Geospatial-Intelligence Agency (NGA). This document also shows the "INT1" symbols described in the Regulations of the IHO for International (INT) Charts and Chart Specifications of the IHO published by the International Hydrographic Organization.
Edition 12, dated April 2013, supersedes all previous editions of U.S. Chart No. 1.
NEW EDITION. 2013 Chart No. 1, Nautical Chart Symbols Abbreviations and Terms, incorporates the symbols used by the International Hydrographic Organization (IHO), while listing alongside them the currently preferred U.S. symbols used by the National Ocean Service (NOS ) and the National Geospatial-Intelligence Agency (NGA).
Also shown are IHO symbols and symbols used on foreign charts reproduced by NGA. Additional sections show the typical layout of NOS charts, as well as examples of charted tide levels and other charted tidal data. 12th Edition. 8-1/2" x 11".