This document covers the design and manufacturing@ installation and testing@ operation and maintenance of vehicle fuelling appliances (VFA) for domestic fuelling of vehicles with compressed natural gas (CNG). This document is applicable to VFAs having the following technical limits: ?? maximum compressing capacity: 20 Nm3/h (NTP); ?? maximum internal storage volume for outdoor installation: 400 l; ?? maximum gas outlet pressure: 200 bar at 15 ?? This document is applicable to VFAs supplied with natural gas as defined in local applicable gas composition regulations or EN 16723-2@ or with other gases meeting these requirements including biomethane@ upgraded coal-bed methane (CBM) and gas from liquefied natural gas (LNG) vaporizer (onsite or off-site). This document applies to VFAs not incorporating gas outlet metering systems.