NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION

US4PR41E - GUANICA LIGHT TO PUNTA TUNA LIGHT

INDEX:
SUPPLEMENTAL INFORMATION
POLLUTION REPORTS
AIDS TO NAVIGATION
CAUTION - TEMPORARY CHANGES
CAUTION - DREDGED AREAS
CAUTION - LIMITATIONS
RADAR REFLECTORS
CAUTION - CHANGES IN BUOYAGE
NOAA WEATHER RADIO BROADCASTS
WARNING - PRUDENT MARINER
NOTE A
AUTHORITIES
ARTICULATED AIDS
HURRICANES AND TROPICAL STORMS
COLREGS, 80.738a (see note A)
TIDAL INFORMATION
ADDITIONAL INFORMATION
CORAL PROPAGATION



NOTES:
SUPPLEMENTAL INFORMATION
Consult U.S. Coast Pilot 5 for important
supplemental information.


POLLUTION REPORTS
Report all spills of oil and hazardous sub-
stances 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).


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


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


CAUTION - DREDGED AREAS
Improved channels are 
subject to shoaling, particularly at the edges.


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.


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 - CHANGES IN BUOYAGE
Mariners are advised that authorized aids to navigation are being changed to
conform to maritime standards of the International Association of Lighthouse
Authorities Maritime Buoyage System, Region B.  Significant changes are: black
port hand buoys to green; black and white vertically striped buoys to red and white
vertically striped buoys; and lateral lights from white to red or green as appropriate.
Changes to aids to navigation will be announced in the National Geospatial-Intelligence
Agency weekly Notice to Mariners and the U.S. Coast Guard Local Notice to
Mariners.


NOAA WEATHER RADIO BROADCASTS
The NOAA Weather Radio stations listed
below provide continuous weather broadcasts.
The reception range is typically 20 to 40
nautical miles from the antenna site, but can be
as much as 100 nautical miles for stations at
high elevations.

San Juan, P.R.	WXJ-69	    162.40 MHz
Maricao, P.R.	WXJ-68	    162.55 MHz


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.


NOTE A
Navigation regulations are published in Chapter 2, U.S.
Coast Pilot 5.  Additions or revisions to Chapter 2 are pub-
lished in the Notice to Mariners, Information concerning the
regulations may be obtained at the Office of the Commander,
7th Coast Guard District in Miami, Florida, or at the Office
of the District Engineer, Corps of Engineers in Jacksonville,
Florida.
Refer to charted regulation section numbers.


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


ARTICULATED AIDS
An articulated aid to navigation consists of a
pipe structure that oscillates around a universal
coupling connected to a sinker. The structure is
kept upright by the buoyancy of a submerged
flotation chamber. It is designed primarily to
mark narrow channels in depths of up to 18.3 meters/60
feet.


HURRICANES AND TROPICAL STORMS
Hurricanes, tropical storms and other major storms may cause
considerable damage to marine structures, aids to navigation and moored
vessels, resulting in submerged debris in unknown locations.
Charted soundings, channel depths and shoreline may not reflect actual
conditions following these storms. Fixed aids to navigation may have been
damaged or destroyed. Buoys may have been moved from their charted
positions, damaged, sunk, extinguished or otherwise made inoperative.
Mariners should not rely upon the position or operation of an aid to
navigation. Wrecks and submerged obstructions may have been displaced
from charted locations. Pipelines may have become uncovered or moved.
Mariners are urged to exercise extreme caution and are requested to
report aids to navigation discrepancies and hazards to navigation to the
nearest United States Coast Guard unit. 

COLREGS, 80.738a (see note A)
International Regulations for Prevention Collisions at Sea, 1972. 
The entire area of this chart falls seaward of the COLREGS Demarcation Line.


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.


CORAL PROPAGATION
Uncharted submerged manmade structures, designed for the purpose of coral propagation, may exist within the limits of this chart,
principally in shallow water areas.



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