In demonstrating its ongoing commitment to supporting the work of the International Maritime Organization (IMO), and within its remit as the Organization’s principal technical advisor, IACS will actively participate in the forthcoming 11th session of the Sub-Committee on Carriage of Cargoes and Containers (CCC 11) which will meet from 8 to 12 September 2025.
Noting the work IACS Members undertake as recognized organizations of IMO Member States, verifying compliance of ships with IMO agreed requirements, and with a view to achieving clarity for all parties, IACS has submitted the following documents:
CCC 11/3/1 proposing amendments to paragraph 5.7.1 of the IGF Code. The proposed amendment expands paragraph 5.7.1 of the IGF Code to include “fuel gas vent pipes” in order to align the IGF Code and the IGC Code.
CCC 11/3/13 commenting on the report of the correspondence group report as regards the development of the interim guidelines for the safety of ships using hydrogen fuels (part 1). The comments in this document relate to sections 2 to 6 of document CCC 11/3.
CCC 11/3/14 commenting on the report of the correspondence group report as regards the development of the interim guidelines for the safety of ships using hydrogen fuels (part 2). The comments in this document relate to sections 7 to 11 of document CCC 11/3.
CCC 11/3/15 commenting on the report of the correspondence group report as regards the development of the interim guidelines for the safety of ships using hydrogen fuels (part 3). The comments in this document relate to sections 12 to 20 of document CCC 11/3.
CCC 11/9 notifying the Sub-Committee of the IACS unified interpretation UI GF 22 on paragraph 9.6.1 of the IGF Code in respect of gas fuel vent pipes of single-walled construction in machinery spaces. IACS members intend to implement the new UI on 1 July 2026 unless instructed otherwise by the flag Administration, in writing.
CCC 11/9/2 proposing an amendment to the unified interpretation of paragraph 9.2.2 of the IGF Code, as set out in MSC.1/Circ.1670. The amendment clarifies the requirements for when a single common flange may be accepted in a piping system for fuel transfer in accordance with the IGF Code.
CCC 11/9/3 proposing a revised interpretation of the IGC Code, related to the secondary barrier testing and effectiveness assessment. This document reflects on the discussion at CCC 9 on a proposed UI for paragraphs of the IGC Code relating to secondary barrier testing and effectiveness assessment (CCC 9/10/1). The proposals have been further developed through several risk assessments by independent third parties and based on experience gained between 2019 and 2024.
CCC 11/15/1 notifying the Sub-Committee of the IACS unified interpretation GF 21 of paragraph 11.7.1 of the Interim guidelines for the safety of ships using methyl/ethyl alcohol as fuel (MSC.1/Circ.1621). The UI relates to the fixed fire-extinguishing system in machinery spaces and fuel preparation spaces where methyl/ethyl alcohol-fuelled engines or fuel pumps are arranged. IACS members are to implement the UI on ships contracted for construction on or after 1 January 2026, to which the flag Administration has required the application of MSC.1/Circ.1621, unless instructed otherwise, in writing.
Any enquiries on the above should be sent to Mr Konstantin Petrov, IACS Accredited Representative to IMO, at arimo@iacs.org.uk
