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certain geographic regions.
6. Marine vessels equipped with VHF radios are required to monitor Chan-
nel 16.
7. 156.050 MHz and 156.175 MHz are available for port operations and
commercial communications purposes when used only within the U.S.
Coast Guard designated Vessel Traffic Services (VTS) area of New Or-
leans, on the lower Mississippi River from the various pass entrances
in the Gulf of Mexico to Devil’s Swamp Light at River Mile 242.4 above
head of passes near Baton Rouge.
8. 156.250 MHz is available for port operations communications use only
within the U.S. Coast Guard designated VTS radio protection areas of
New Orleans and Houston described in Sec. 80.383. 156.250 MHz is
available for intership port operations communications used only within
the area of Los Angeles and Long Beach harbors, within a 25- nautical
mile radius of Point Fermin, California.
9. 156.550 MHz, 156.600 MHz and 156.700 MHz are available in the U.S.
Coast Guard designated port areas only for VTS communications and
in the Great Lakes available primarily for communications relating to the
movement of ships in sectors designated by the St. Lawrence Seaway
Development Corporation or the U.S. Coast Guard. The use of these fre-
quencies outside VTS and ship movement sector protected areas is per-
mitted provided they cause no interference to VTS and ship movement
communications in their respective designated sectors.
10. Use of 156.875 MHz is limited to communications with pilots regarding
the movement and docking of ships. Normal output power must not ex-
ceed 1 watt. 5: 156.375 MHz and 156.650 MHz are available primarily for
intership navigational communications. These frequencies are available
between coast and ship on a secondary basis when used on or in the
vicinity of locks or drawbridges. Normal output power must not exceed 1
watt. Maximum output power must not exceed 10 watts for coast stations
or 25 watts for ship stations.
11. On the Great Lakes, in addition to bridge-to-bridge communications,
156.650 MHz is available for vessel control purposes in established
vessel traffic systems. 156.650 MHz is not available for use in the Mis-
sissippi River from South Pass Lighted Whistle Buoy “2” and Southwest
Pass entrance Mid-channel Lighted Whistle Buoy to mile 242.4 above
Head of Passes near Baton Rouge. Additionally it is not available for use
in the Mississippi River-Gulf Outlet, the Mississippi River-Gulf Outlet Ca-
nal, and the Inner Harbor Navigational Canal, except to aid the transition
from these areas.
