1 Proposals for amendment or enhancement of the
World-Wide Navigational Warning Service must be submitted for evaluation
by the appropriate Sub-Committee. Amendments will only be adopted
after the approval of the Maritime Safety Committee (MSC).
2 Amendments to the service should normally be
adopted at intervals of approximately two years or at such longer
periods as may be determined by the Maritime Safety Committee. Amendments
adopted by the Maritime Safety Committee will be notified to all concerned,
will provide at least 12 months' notification and will come into force
on 1 January of the following year.
3 The agreement of the International Hydrographic
Organization and the active participation of other bodies must be
sought according to the nature of the proposed amendments.
4 The schedule of broadcast times and frequencies
for the WWNWS, being subject to frequent changes, will not be subject
to these amendment procedures, but must be coordinated through the
International SafetyNET Coordinating Panel or the IMO NAVTEX Coordinating
Panel, as appropriate.