RT null T1 Montreal Protocol on Substances that Deplete the Ozone Layer: Final Act A1 United Nations Environment Programme, K1 Montreal Protocol K1 ozone K1 ozone layer depletion YR 1987 FD 1987 LK https://wedocs.unep.org/handle/20.500.11822/8286 UL https://wedocs.unep.org/handle/20.500.11822/8286 NO The Conference of Plenipotentiaries on the Protocol on Chlorofluorocarbons to the Vienna Convention for the Protection of the Ozone Layer was convened by the Executive Director of the United Nations Environment Programme (UNEP) pursuant to decision 13/19 adopted by the Governing Council of UNEP on 23 May 1985. DS UN Environment Document Repository RD Sep 18, 2026