NOAA ENC

NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION

US3AK7BM - RAT ISLANDS 


INDEX:

NOTE A
AIDS TO NAVIGATION
AUTHORITIES
RADAR REFLECTORS
WARNING - PRUDENT MARINER
SUPPLEMENTAL INFORMATION
POLLUTION REPORTS
CAUTION - TEMPORARY CHANGES
COLREGS, 80.1705 (see note A) 
WATER LEVELS, CURRENTS, AND TIDES
COMMENTS REQUESTED
ADDITIONAL INFORMATION


NOTES: 

NOTE A
Navigation regulations are published in Chapter 2, U.S. Coast Pilot 9. 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, 17th Coast Guard District in Juneau, Alaska, or at the Office of the District Engineer, Corps of Engineers in Anchorage, Alaska. Refer to charted regulation section numbers.

                              
AIDS TO NAVIGATION
Consult U.S. Coast Guard Light List for supplemental information concerning aids to navigation.

 
AUTHORITIES
Hydrography and topography by the National Ocean Service, Coast Survey, with additional data from the Corps of Engineers, Geological Survey, U.S. Coast Guard, and the National Geospatial-Intelligence Agency.

                      
RADAR REFLECTORS
Radar reflectors have been placed on many floating aids to navigation. Individual radar reflector identification on these aids has been omitted from this chart.


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.
                                      
		                              
SUPPLEMENTAL INFORMATION
Consult U.S. Coast Pilot 9 for important supplemental information.

                                 
POLLUTION REPORTS
Report all spills of oil and hazardous substances to the National Response Center via 1-800-424-8802 (toll free), or 3735 to the nearest U.S. Coast Guard facility if telephone communication is impossible (33 CFR 153).


CAUTION - TEMPORARY CHANGES
Temporary changes or defects in aids to navigation are not indicated. See Local Notice to Mariners.


COLREGS, 80.1705 (see note A) 
International Regulations for Preventing Collisions at Sea, 1972. The entire area of this chart falls seaward of the COLREGES Demarcation Line.
                   

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/.


ADDITIONAL INFORMATION
Additional information can be obtained at www.nauticalcharts.noaa.gov


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