RT null T1 Handbook for the Montreal Protocol on Substances that Deplete the Ozone Layer - Third Edition A1 United Nations Environment Programme, K1 environmental law K1 environmental protection K1 law enforcement K1 legislative process K1 ozone layer K1 ozone-depleting substance K1 toxic substance K1 treaty K1 law of treaty K1 manual YR 1993 FD 1993 LK https://wedocs.unep.org/handle/20.500.11822/29421 UL https://wedocs.unep.org/handle/20.500.11822/29421 NO This third edition of the Montreal Protocol Handbook updates the previous 1992 edition with the inclusion of the decisions of the Fourth Meeting in Copenhagen in November 1992. It incorporates into the Protocol the adjustments and the Amendment adopted at that meeting. It also annexessome important recent decisions of the Executive Committee of the Multilateral Fund. DS UN Environment Document Repository RD Sep 19, 2026