NOAA ENCŪ

NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION

US3AK7GM - ALASKA - ALEUTIAN ISLANDS, IGITKIN ISLAND TO SEMISOPOCHNOI ISLAND


INDEX:
NOTE A
CAUTION - TEMPORARY CHANGES
SUPPLEMENTAL INFORMATION
AIDS TO NAVIGATION
WARNING - PRUDENT MARINER
AUTHORITIES
RADAR REFLECTORS
POLLUTION REPORTS
CAUTION - LIMITATIONS 
TIDAL INFORMATION
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, particu-
larly 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 Geo-
logical Survey


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.


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).


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.


TIDAL INFORMATION
For tidal information see the NOS Tide Table publication or go to 
http://co-ops.nos.noaa.gov	


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


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