This International Standard covers the installation of permanently installed liquefied petroleum gas LPG systems and LPG burning appliances on small craft of up to 24 m length of hull. It does not cover devices used for LPG-fuelled propulsion engines or LPG-driven generators. This International Standard covers cooking appliances with internal LPG cartridges, with a capacity of 225 g or less. It covers storage of all LPG cylinders but is not intended to regulate the technical requirements for such cylinders that are subject to national regulations. It does not contain procedures for commissioning the LPG installation.