In 2014 the latest version of the fluorinated greenhouse gases “F Gas” regulations came into existence. The legislation impacts users of affected HFC's including the refrigeration & air-conditioning sector. The responsibilities for leaks falls on the equipment users and it is their responsibility to ensure all equipment is leak checked. Depending on the levels of refrigerants held, this check period could be at a maximum period of every 3 months. Installation of a gas leak detection system can impact the inspection cycle, and intervals may decrease with a system installed. Consult your refrigeration specialist for more information. To find out more visit this link from GOV.UK