NoticeofMSC.1Circ.1622ConcerningGuidelinesfortheAcceptanceofAlternativeMetallicMaterialsforCryogenicServiceinShipsCarryingLiquefiedGasesinBulkandShips

CCSTechnical Information(2021)Technical Information No.33 Total No.539Jul.27,2021(Total 2 pages+Annex)To:Relevant shipowners,ship management companies,shipyards and designers,productmanufacturer,related departments of the Headquarters of CCS,the Society's surveyors,Plan Approval CentersNotice of MSC.1Circ.1622 Concerning Guidelines for the Acceptanceof Alternative Metallic Materials for Cryogenic Service in ShipsCarrying Liquefied Gases in Bulk and Ships Using Gases or otherLow-Flashpoint Fuels1 Background1.1 The Maritime Safety Committee,at its 102nd session (4 to 11 November2020),acknowledging a potential need for alternative metallic materials to be used forthe construction and safe operation of low-temperature fuel and cargo-carrying shipsand the need for guidance in this respect,approved the Guidelines for the acceptanceof alternative metallic materials for cryogenic service in ships carrying liquefiedgases in bulk and ships using gases or other low-flashpoint fuels (CircularMSC.1/Circ.1622),prepared by the Sub-Committee on Carriage of Cargoes andContainers (CCC),at its sixth session (9 to 13 September 2019).1.2 The Chinese translation of Circular MSC.1/Circ.1622 and its annexGuidelines for the acceptance ofalternative metallic materials for cryogenic servicein ships carrying liquefied gases in bulk and ships using gases or other low-flashpointfuels is attached in annex 1 of this circular2 Technical Points