NOAA Nautical Chart 83633: United States Possession Approaches to Johnston Atoll is a standard navigation chart used by commercial and recreational mariners alike. The chart you are viewing is a NOAA standard nautical chart. Printed "on-demand," it contains all of the latest notice to mariner (NTM) updates as of the time of printing. The National Oceanic and Atmospheric Administration (NOAA) has partnered with OceanGrafix to provide commercial and recreational mariners with the most accurate nautical charts. These charts meet the definition of a nautical chart laid out in SOLAS Chapter V Regulation 2.2 and also meet the carriage requirements defined in SOLAS Chapter V Regulation 19.2.1.4