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Handbook for the Montreal Protocol on Substances that Deplete the Ozone Layer
… shall be restricted to the servicing of refrigeration and air-conditioning equipment existing on 1 January 2020; (b) … shall be restricted to the servicing of refrigeration and air-conditioning equipment existing on 1 January 2020. 7. As … shall be restricted to the servicing of refrigeration and air-conditioning equipment existing on 1 January 2030; 22 …