3.2 Scheduling
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Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC.1/Circular.1288/Rev.1 – Amendments to Resolution A.706(17) – World-Wide Navigational Warning Service – (24 June 2013) - Annex 1 – IMO/IHO World-Wide Navigational Warning Service Guidance Document - 3 Navigational Warning Broadcasts - 3.2 Scheduling

3.2 Scheduling

Parent topic: 3 Navigational Warning Broadcasts

3.2.1 Automated methods (NAVTEX /SafetyNET)

  3.2.1.1 Navigational warnings should be broadcast as soon as possible or as dictated by the nature and timing of the event. Normally, the initial broadcast should be made as follows:

  • .1 for NAVTEX, at the next scheduled broadcast, unless circumstances indicate the use of procedures for VITAL or IMPORTANT warnings; and

  • .2 for SafetyNET, within 30 minutes of receipt of original information, or at the next scheduled broadcast.

  3.2.1.2 Navigational warnings should be repeated in scheduled broadcasts in accordance with the guidelines promulgated in the NAVTEX Manual and International SafetyNET Manual, as appropriate.

  3.2.1.3 At least two scheduled daily broadcast times are necessary to provide adequate promulgation of NAVAREA warnings. When NAVAREAs extend across more than six time zones, more than two broadcasts should be considered to ensure that warnings can be received. When using SafetyNET in lieu of NAVTEX for coastal warnings, Administrations may need to consider an increase in the number of scheduled daily broadcasts compared with the requirement for NAVAREA warnings.

3.2.2 Schedule changes

  3.2.2.1 Broadcast times for NAVTEX are defined by the B1 transmitter identification character of the station, allocated by the IMO NAVTEX Coordinating Panel.

  3.2.2.2 Times of scheduled broadcasts under the international SafetyNET service are coordinated through the International SafetyNET Coordinating Panel.

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