3.1.1
Two principal methods are used
for broadcasting navigational warnings as part of MSI in accordance
with the provisions of the International Convention for the Safety
of Life at Sea, 1974, as amended, in the areas covered by these methods,
as follows:
-
.1
NAVTEX: broadcasts to coastal
waters; and
-
.2
SafetyNET: broadcasts which cover
all the waters of the globe except for sea area A4, as defined by
resolution A.801(19), annex 3, as amended.
3.1.2
Information should be provided
for unique and precisely defined sea areas, each being served only
by the most appropriate of the above methods. Although there will
be some duplication to allow a ship to change from one method to another,
the majority of warnings will be broadcast either on NAVTEX or SafetyNET.
3.1.3
NAVTEX broadcasts should be
made in accordance with the standards and procedures set out in the
NAVTEX Manual.
3.1.4
SafetyNET broadcasts should
be made in accordance with the standards and procedures set out in
the International SafetyNET Manual.
3.1.5
HF NBDP may be used to promulgate
maritime safety information in areas outside Inmarsat coverage (SOLAS regulation IV/7.1.5).
3.1.6
In addition, Administrations
may also provide navigational warnings by other means.
3.1.7
In the event of failure of
normal transmission facilities, an alternative means of transmission
should be utilized. A NAVAREA Warning and a coastal Warning, if possible,
should be issued detailing the failure, its duration and, if known,
the alternative route for the dissemination of MSI.