FAQ – what you should know about the forthcoming revised SOLAS chapter IV
IMO MSC 105 adopted amendments SOLAS chapter II-1, III, IV and V, the appendix (Certificates) and the 1988 SOLAS Protocol (Certificates); through resolution MSC.496(105) and resolution MSC.497(105). The amendments enter into force on 1 January 2024.
The revision of the Global Maritime Distress and Safety System (GMDSS) aims to allow the use of modern communication systems, while removing the requirements for carrying obsolete systems.
What are the key amendments to SOLAS Chapter IV related to radiocommunications effective from 1 January 2024?
The amendments to SOLAS Chapter IV include the use of generalized terms for GMDSS technologies, consolidation of provisions for VHF radio telephone apparatus and SART (Search and Rescue Transponder), changes in sea area coverage, and the removal of the NBDP (Narrow Band Direct Printing) function for MF/HF radio installations.
Why were two-way VHF radio telephone apparatus and SART (Search and Rescue Transponder) provisions deleted from SOLAS III/Reg.6 and consolidated in SOLAS IV/Reg.7?
The consolidation was part of the GMDSS modernization efforts to adapt to modern communication systems and remove carriage requirements for obsolete systems, simplifying regulations and improving clarity.
What changes have been made regarding the use of VHF-EPIRB in sea area A1?
VHF-EPIRB will no longer be accepted in lieu of satellite EPIRB for sea area A1. Ships operating exclusively in sea area A1 should replace VHF-EPIRB with satellite-EPIRB.
How have the requirements for shipborne GMDSS equipment changed after 1 January 2024?
Except for replacing VHF-EPIRB with satellite-EPIRB in sea area A1, no additional or replacement GMDSS equipment is required. However, the function of NBDP for MF/HF radio installation is no longer required.
How can ship owners/operators select the RMSS-SES (Recognized Mobile Satellite Service Ship Earth Station) (e.g., INMARSAT, IRIDIUM) to be installed on board, and what considerations should be taken into account?
Ship owners/operators can select RMSS-SES based on coverage areas. Each RMSS system provides different communication coverage. The selected RMSS-SES should be able to receive EGC (enhanced group call) broadcasting in the intended operational area, and consideration should be given to MSI (Maritime Safety Information) and SAR (Maritime Search and Rescue) information obtained by other onboard equipment. However, the installation of RMSS-SES (i.e. IRIDIUM in lieu of INMARSAT) is subject to flag’s policy and acceptance.
What is the significance of the deletion of the NBDP (Narrow Band Direct Printing) function for MF/HF radio installation, and how does it impact BV registered ships?
The Narrow Band Direct Printing (NBDP) function is no longer required on 1 January 2024. For BV registered ships, the marking of the NBDP for MF/HF radio installation will be deleted on relevant statutory certificates issued/ renewed after 1 January 2024
In addition, the alternative method of compliance for operation in Sea Area A3 using VHF + MF/HF (DSC + radiotelephony + NBDP) + Secondary means (EPIRB or Ship Earth Station (SES)) is no longer acceptable. Therefore, from 1 January 2024 existing ships operating in Sea Area 3 which have only MF/HF equipment and no SES, at, a minimum will need to install one SES.
For those ships currently using direct printing telegraphy (NBDP) to fulfil the role of “duplication” for a single Inmarsat C (in Sea Area A3), would this Radio Telex no longer be considered?
Direct-printing telegraphy (NBDP) is being removed from the GMDSS regulations as of 1 January 2024, therefore transmitting and receiving distress and safety communications using direct-printing telegraphy (NBDP) do not form part of the GMDSS requirement and hence need not be fitted on board as duplicate equipment.
Can different types of RMSS-SES (Recognized Mobile Satellite Service Ship Earth Station) be installed as primary and duplicated systems on board, and are there any restrictions?
Yes, but an RMSS-SES with lesser coverage should be designated as the primary system to determine the coverage of sea area A3. The duplicated system’s coverage should include that of the primary system, and RMSS-SES with no correlation with the primary system’s communication range cannot be accepted as a duplicated system.
Currently there is a requirement for a NAVTEX (NAVigational TEleX Messages) receiver and an MSI receiver (Inmarsat / Iridium). When the changes come into force, is there still a requirement to have NAVTEX, or is the MSI receiver in the Inmarsat C/Iridium sufficient?
E.g., if we supply a new build for A3, is the supply of an Inmarsat / Iridium MSI receiver sufficient to satisfy the new regulation, or does a NAVTEX need to be supplied too, and if a NAVTEX is faulty but the ship has Inmarsat MSI RX, can the NAVTEX be removed?
According the MSC.1/Circ.1645, para.4, ships should be provided with equipment appropriate for the entire voyage in which the ship is engaged, as follows:
“.1 a receiver capable of receiving international NAVTEX service broadcasts if the ship is engaged on voyages in any area in which an international NAVTEX service is provided; and
.2 if the ship is engaged in voyages in which an international NAVTEX service is not provided:
.1 a receiver capable of receiving HF NBDP service when a ship is engaged in voyages where such service is provided;
.2 receiver(s) capable of receiving broadcasts from an international EGC service identified (SafetyNet or International Iridium SafetyCast service) which provide(s) a service for the operating areas. “
So, depending on the operating areas and or/not if international NAVTEX service is provided.
Refer to the attached circular MSC.1/Circ.1645
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