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Decision XXI/1: Status of ratification of the Vienna Convention, the Montreal Protocol and the London, Copenhagen, Montreal and Beijing amendments to the Montreal Protocol

  1. To note with satisfaction that 196 Parties have ratified the Vienna Convention for the Protection of the Ozone Layer and the Montreal Protocol on Substances that Deplete the Ozone Layer, representing universal ratification, and also a higher number of Parties than any other treaties in history;
  2. To note that, as of 31 October 2009, 193 Parties had ratified the London Amendment to the Montreal Protocol, 190 Parties had ratified the Copenhagen Amendment to the Montreal Protocol, 178 Parties had ratified the Montreal Amendment to the Montreal Protocol and 160 Parties had ratified the Beijing Amendment to the Montreal Protocol;
  3. To urge all States that have not yet done so to ratify, approve or accede to the amendments to the Montreal Protocol, taking into account that universal participation is necessary to ensure the protection of the ozone layer;