{"standard":"EN 257","listings":[{"edition":"EN 257:2022","list":"uk-gas-appliances","list_name":"UK Gas Appliances (designated)","jurisdiction":"UK","title":"Mechanical thermostats for gas-burning appliances","annex":"Regulation 2016/425","pc_start":"06/09/2024","restriction":"","withdrawal":"08/04/2025","source":"https://www.gov.uk/government/publications/designated-standards-gas-appliances"},{"edition":"EN 257:2022+A1:2023","list":"uk-gas-appliances","list_name":"UK Gas Appliances (designated)","jurisdiction":"UK","title":"Mechanical thermostats for gas-burning appliances","annex":"Regulation 2016/425","pc_start":"08/04/2025","restriction":"","withdrawal":"","source":"https://www.gov.uk/government/publications/designated-standards-gas-appliances"}],"events":[],"generated":"2026-08-16 23:54 UTC"}