U.S. Chart 1: Symbols & Abbreviations (PDF download)

13th ed. "Chart Number One" is essential to accurate use of nautical charts. More than a chart, it provides definitions of the symbols, abbreviations, and terms used on charts, as well as important information about buoys and aids to navigation. This edition is a complete duplication of information provided by NOAA and NIMA. Link. https://nauticalcharts.noaa.gov/publications/docs/us-chart-1/ChartNo1.pdf