MSC.1-Circ.1613-Rev.2-IridiumSafetycastServiceManual

INTERNATIONALEMARITIMEORGANIZATION4 ALBERT EMBANKMENTLONDON SE1 7SRTelephone:+44(0)2077357611Fax:+44(0)2075873210MSC.1/Circ.1613/Rev.25Juy2023IRIDIUM SAFETYCAST SERVICE MANUAL1The Maritime Safety Committee,at its 101st session(5 to 14 June 2019),approvedthe Interim Iridium SafetyCast service manual (MSC.1/Circ.1613),which provided informationon Iridium's enhanced group calling service,for circulation to Member States as advanceinformation2Member States were invited to take account of the information contained in themanual when conducting system trials and tests.3The Committee,at that session,also established an IMO Enhanced Group CallCoordinating Panel for coordinating the development and use of the internationalsatellite-based enhanced group calling service.The Panel's terms of reference andcertification process are given in MSC.1/Circ.1635.4The Committee,at its 104th session(4 to 8 October 2021),approved the revisedInterim Iridium SafetyCast service manual,(MSC.1/Circ.1613/Rev.1),which became effectiveon 1 January 2022.5The Committee,at its 107th session(31 May to 9 June 2023),approved the revisedIridium SafetyCast service manual,as set out in the annex,prepared by the Sub-Committeeon Navigation,Communications and Search and Rescue (NCSR),at its tenth session(10 to 19 May 2023),and agreed that it should become effective on 1 July 2023.6Member States intending to use the Iridium SafetyCast service are invited to takeaccount of the attached revised Iridium SafetyCast service manual.7This revised circular supersedes MSC.1/Circ.1613/Rev.1,as from 1 July 2023.★次发I:CIRCMSC1MSC.1-Circ.1613-Rev.2.docxIMOMARPOL AT 50OUR COMMITMENT GOES ON