NOAA ENCŪ 

NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION

US3AK7WM - ALASKA - ALEUTIAN ISLANDS, IGITKIN ISLAND TO SEMISOPOCHNOI ISLAND


INDEX:

NOTE A
CAUTION - TEMPORARY CHANGES
SUPPLEMENTAL INFORMATION
AIDS TO NAVIGATION
WARNING - PRUDENT MARINER
AUTHORITIES
POLLUTION REPORTS
WATER LEVELS, CURRENTS, AND TIDES
COMMENTS REQUESTED
RADAR REFLECTORS
CAUTION - LIMITATIONS
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.


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


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


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.


AUTHORITIES
Hydrography and topography by the National Ocean Service, Coast Survey, with additional data from the U.S. Coast Guard, and Geological survey.


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).


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/.


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.


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.


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

 
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