United Nations Ozone Secretariat
URL: http://www.unep.org/ozone/

Resources:

• Montreal Protocol on Substances that Deplete the Ozone Layer (with current text amendments and adjustments)
  
  
• United Nations Environment Programme, Ozone Secretariat - Status of Ratification/Accession/Acceptance/Approval of the Agreements on the Protection of the Stratospheric Ozone Layer
  
  
• United Nations Environment Programme, Ozone Secretariat - The 2002 UNEP/WMO Scientific Assessment of Ozone Depletion
  
  
• Vienna Convention for the Protection of the Ozone Layer (1985)