The 9th session of the International Maritime Organization (IMO) Sub-Committee on Carriage of Cargoes and Containers (CCC), took place from 20-29 September, where various matters were discussed, including a revision of the IGC code.
The Sub-Committee continued its ongoing revision of the International Code of the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk (IGC Code) and made progress on the development of relevant draft amendments, with a view to finalization at CCC 10, approval at MSC 109, and subsequent adoption at MSC 110, for entry into force on 1 January 2028.
The Sub-Committee endorsed the view that high manganese austenitic steel is considered resistant to ammonia stress corrosion cracking and, therefore, suitable for ammonia cargo and/or fuel tanks containing ammonia.
The Sub-Committee agreed to revisions of the Revised guidelines on the application of high manganese austenitic steel for cryogenic service (MSC.1/Circ.1599/Rev.2) and the Guidelines for the acceptance of alternative metallic materials for cryogenic service in ships carrying liquefied gases in bulk and ships using gases or other low-flashpoint fuels (MSC.1/Circ.1622), both for submission to MSC 108 for approval.
