Section 1.1 The Montreal Protocol on Substances that Deplete the Ozone Layer
as adjusted and amended by the Second Meeting of the Parties (London, 27-29 June 1990) and by the Fourth Meeting of the Parties (Copenhagen, 23-25 November 1992) and further adjusted by the Seventh Meeting of the Parties (Vienna, 5-7 December 1995) and further adjusted and amended by the Ninth Meeting of the Parties (Montreal, 15-17 September 1997) and by the Eleventh Meeting of the Parties (Beijing, 29 November - 3 December 1999)