NOAA ENCŪ NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION US2SP03M - NORTH PACIFIC OCEAN - MARIANA ISLANDS (SOUTHERN PART) INDEX: NOTE A SYMBOLS AND ABBREVIATIONS AUTHORITIES AIDS TO NAVIGATION WARNING - PRUDENT MARINER POLLUTION REPORTS SUPPLEMENTAL INFORMATION CAUTION - TEMPORARY CHANGES RADAR REFLECTORS CAUTION - LIMITATIONS CAUTION - SUBMARINE PIPELINES AND CABLES HORIZONTAL DATUM CURRENTS PIRACY WARNINGS CELL ACCURACY ADDITIONAL INFORMATION WATER LEVELS, CURRENTS, AND TIDES COMMENTS REQUESTED NOTES: NOTE A Navigation regulations are published in Chapter 2, U.S. Coast Pilot 10. Additions or revisions to Chapter 2 are published in the Notice to Mariners. Information concerning the regulations may be obtained at the Office of the Commander, 14th Coast Guard District in Honolulu, Hawaii, or at the Office of the District Engineer, Corps of Engineers in Honolulu, Hawaii. Refer to charted regulation section numbers. SYMBOLS AND ABBREVIATIONS For complete list of Symbols and Abbreviations, see Chart No. 1. AUTHORITIES Hydrography from Japanese, U.S. Navy and National Geospatial-Intelligence Agency surveys. AIDS TO NAVIGATION Consult U.S. Coast Guard Light List for supplemental information concerning aids to navigation. WARNING - PRUDENT MARINER The prudent mariner will not rely solely on any single aid to navigation, particularly on floating aids. See U.S. Coast Guard Light List and U.S. Coast Pilot for details. POLLUTION REPORTS Report all spills of oil and hazardous substances to the National Response Center via 1-800-424-8802 (toll free), or to the nearest U.S. Coast Guard facility if telephone communication is impossible (33 CFR 153). SUPPLEMENTAL INFORMATION Consult U.S. Coast Pilot 10 for important supplemental information. CAUTION - TEMPORARY CHANGES Temporary changes or defects in aids to navigation are not indicated. See Local Notice to Mariners. RADAR REFLECTORS Radar reflectors have been placed on many floating aids to navigation. Individual radar reflector identification on these aids has been omitted. CAUTION - LIMITATIONS Limitations on the use of radio signals as aids to marine navigation can be found in the U.S. Coast Guard Light Lists and National Geospatial-Intelligence Agency Publication 117. Radio direction-finder bearings to commercial broadcasting stations are subject to error and should be used with caution. CAUTION - SUBMARINE PIPELINES AND CABLES Additional uncharted submarine pipelines and submarine cables may exist within the area of this chart. Not all submarine pipelines and submarine cables are required to be buried, and those that were originally buried may have become exposed. Mariners should use extreme caution when operating vessels in depths of water comparable to their draft in areas where pipelines and cables may exist, and when anchoring, dragging, or trawling. Covered wells may be marked by lighted or unlighted buoys. HORIZONTAL DATUM The horizontal reference datum for this chart is unknown, except for areas with larger scale chart coverage. The horizontal reference datum for all areas covered by larger scale charts can be considered equivalent to World Geodetic System 1984 (WGS84), which for charting purposes is also considered equivalent to North American Datum of 1983 (NAD83). The charted features on larger scale charts were shifted by means of geo-referenced satellite imagery and geo-referenced aerial photography, and have not been confirmed by land-based geodetic methods. CURRENTS For details on ocean currents in this area, see Admiralty Sailing Directions and Routeing Charts. PIRACY WARNINGS Piracy warnings are transmitted daily by the Piracy Reporting Centre (PRC) at Kuala Lumpur, through Enhanced Group Calling (EGC) using the Inmarsat SafetyNET System. For further details, see Admiralty List of Radio Signals. CELL ACCURACY Owing to the age and quality of the source information, some detail on this cell may not be ositioned accurately. Particular caution is advised when navigating in the vicinity of dangers, even when using an electronic positioning system such as GPS. ADDITIONAL INFORMATION Additional information can be obtained at www.nauticalcharts.noaa.gov. WATER LEVELS, CURRENTS, AND TIDES Real-time water levels, tide predictions, and tidal current predictions are available on the internet from NOAA's Center for Operational Oceanographic Products and Services (CO-OPS) at https://tidesandcurrents.noaa.gov/water_level_info.html and https://tidesandcurrents.noaa.gov/currents_info.html. COMMENTS REQUESTED NOAA encourages users to submit inquiries, discrepancies, or comments about this chart via NOAA's ASSIST tool at https://www.nauticalcharts.noaa.gov/customer-service/assist/. END OF FILE