ISO/FDIS 24941

Ships and marine technology — Piping and machinery — Safety guidelines and requirements for engine rooms of ammonia fuelled vessels

General information

50.00   Final text received or FDIS registered for formal approval   Sep 8, 2026

ISO

ISO/TC 8/SC 3 Piping and machinery

International Standard

47.020.20   Marine engines and propulsion systems | 47.020.30   Piping systems

Scope

The scope of proposed standard is to suggest safety guidelines for engine rooms of ammonia fuelled
vessels, excluding the fuel containment system, and fuel consumers related to ammonia fuel systems for
ships in accordance with “Guidelines for ships using ammonia as fuel” developed by the Carriage of
Cargoes and Containers (CCC), which is a Sub-Committee of the International Maritime Organization
(IMO). This standard focuses on application to ammonia-fuelled ships, but not ammonia carrier ships.

Life cycle

NOW

IN_DEVELOPMENT
ISO/FDIS 24941
50.00 Final text received or FDIS registered for formal approval
Sep 8, 2026