The prohibition in the first paragraph does not apply to halocarbon emissions resulting from(1) the operation of an air extraction system of a refrigeration or air conditioning unit whose emissions into the atmosphere do not exceed the limit set by the first paragraph of section 27;
(2) the use of a process to manufacture plastic foam or plastic foam products referred to in Division V of Chapter II;
(3) the use of a process to produce magnesium, subject to sulphur hexafluoride (SF6) emissions which are prohibited as of 16 April 2020;
(3.1) the use of a process to produce magnesium alloys, subject to sulphur hexafluoride (SF6) emissions which are prohibited as of 6 July 2024;
(4) the use of a solvent;
(5) training, research and development activities;
(6) leak tests conducted in accordance with this Regulation; or
(7) the use of a fire extinguisher to prevent, extinguish or control a fire;
(8) the calibration of leak detectors where it is conducted using equipment specially designed for that purpose and in accordance with the manufacturer’s instructions;
(9) the connection or disconnection of pipes less than 1 m long used to recover a halocarbon from a unit, equipment or system or to fill them with a halocarbon.