1 August 2005 IGE/UP/1 Edition 2 +A: 2005 - Strength testing/tightness testing/direct purging of industrial and commercial gas installations
1 August 2005 IGE/UP/1A Edition 2 +A: 2005 - Strength/tightness testing/purging of small, low pressure industrial & commercial installations
1 March 2026 IGEM/UP/1B Edition 4 - Tightness testing and direct purging of small Liquefied Petroleum Gas/Air, NG and LPG installations
1 March 2011 IGEM/UP/1C - Strength testing, tightness testing and direct purging of Natural Gas and LPG meter installations
1 January 2017 IGEM/UP/4 Edition 4 - Commissioning of gas fired plant on industrial and commercial premises
1 August 2006 IGE/UP/7 Edition 2 +A: 2008 - Gas installations in timber framed and light steel framed buildings
1 December 2022 IGEM/UP/9 Edition 3 - Application of Gas systems to gas turbines and supplementary and auxiliary fired burners
1 February 2017 IGEM/UP/10 Edition 4 +A: 2016 and 2017 - Installation of flued gas appliances in industrial and commercial premises
24 November 2023 IGEM/UP/12 Edition 3 - Application of burners and controls to gas fired process plant
9 June 2022 IGEM/UP/16 Edition 2 - Design for natural gas installations on industrial and commercial premises with amendments November 2023
1 July 2022 IGEM/UP/19 Edition 2 - Design & application of interlock devices/associated systems in gas appliance installations in catering
