Vienna Convention for the Protection of the Ozone Layer Document type Multilateral Field of application Global Date Mar 22, 1985 Source IUCN (ID: TRE-000829) Title (French) Convention pour la protection de la couche d'ozone Title (Spanish) Convenio de Viena para la protección de la capa de ozono Title (Other) Übereinkommen zum Schutz der Ozonschicht Place of adoption Vienna Depository UN United Nations Language Chinese, English, French, Russian, Spanish Entry into force Sep 22, 1988 Subject Waste & hazardous substances, Air & atmosphere Geographical area Arctic Abstract Objectives: To protect human health and the environment against adverse effects resulting from modifications of the ozone layer. Summary or provisions: Parties agree to cooperate in research concerning substances and processes that modify the ozone layer on human health and environmental effects of such modifications, on alternative substances and technologies and in the systematic observation of the State of the ozone layer (arts. 2 and 3). Parties undertake to cooperate in controlling activities that cause adverse effects through modification of the ozone layer, and, particularly, in the development of protocols for such purposes (arts. 2 and 4). Parties are to exchange scientific, technical, socio-economic, commercial and legal information relevant to the Convention, and cooperate in the development and transfer of technology and knowledge (art. 4). The Convention has two annexes: setting forth important issues for scientific research on and systematic observation of the ozone layer; and describing the kinds of information to be collected and shared under its terms. (Source: IUCN ELC, 08.2005, based on UNEP Register of International Treaties and Other Agreements in the Field of the Environment, 1996) Full text English French Spanish Other Website ozone.unep.org treaties.un.org Online course Introductory Course to the International Legal Framework on Ozone Depletion Country/Territory/Participant See Expanded View Show Map Countries Entry into force Ratification * Simple signature Afghanistan Sep 15, 2004 Jun 17, 2004 [2] - Albania Jan 6, 2000 Oct 8, 1999 [2] - Algeria Jan 18, 1993 Oct 20, 1992 [2] - Andorra Apr 26, 2009 Jan 26, 2009 [2] - Angola Aug 15, 2000 May 17, 2000 [2] - Antigua and Barbuda Mar 3, 1993 Dec 3, 1992 [2] - Argentina Apr 18, 1990 Jan 18, 1990 [1] Mar 22, 1985 Armenia Dec 30, 1999 Oct 1, 1999 [2] - Australia Sep 22, 1988 Sep 16, 1987 [2] - Austria Sep 22, 1988 Aug 19, 1987 [1] Sep 16, 1985 Azerbaijan Sep 10, 1996 Jun 12, 1996 [2] - Bahamas Jun 30, 1993 Apr 1, 1993 [2] - Bahrain Jul 26, 1990 Apr 27, 1990 [2] - Bangladesh Oct 31, 1990 Aug 2, 1990 [2] - Barbados Jan 14, 1993 Oct 16, 1992 [2] - Belarus Sep 22, 1988 Jun 20, 1986 [3] Mar 22, 1985 Belgium Jan 15, 1989 Oct 17, 1988 [1] Mar 22, 1985 Belize Sep 4, 1997 Jun 6, 1997 [2] - Benin Sep 29, 1993 Jul 1, 1993 [2] - Bhutan Nov 21, 2004 Aug 23, 2004 [2] - Bolivia (Plurinational State of) Jan 1, 1995 Oct 3, 1994 [2] - Bosnia and Herzegovina Nov 30, 1993 Sep 1, 1993 [4] - Botswana Mar 2, 1992 Dec 4, 1991 [2] - Brazil Jun 17, 1990 Mar 19, 1990 [2] - Brunei Darussalam Oct 24, 1990 Jul 26, 1990 [2] - Bulgaria Feb 18, 1991 Nov 20, 1990 [2] - Burkina Faso Jun 28, 1989 Mar 30, 1989 [1] Dec 12, 1985 Burundi Apr 6, 1997 Jan 6, 1997 [2] - Cabo Verde Oct 29, 2001 Jul 31, 2001 [2] - Cambodia Sep 25, 2001 Jun 27, 2001 [2] - Cameroon Nov 28, 1989 Aug 30, 1989 [2] - Canada Sep 22, 1988 Jun 4, 1986 [1] Mar 22, 1985 Central African Republic Jun 29, 1993 Mar 29, 1993 [2] - Chad Aug 16, 1989 May 18, 1989 [2] - Chile Jun 4, 1990 Mar 6, 1990 [1] Mar 22, 1985 China Dec 10, 1989 Sep 11, 1989 [2] - Colombia Oct 14, 1990 Jul 16, 1990 [2] - Comoros Jan 29, 1995 Oct 31, 1994 [2] - Congo Feb 14, 1995 Nov 16, 1994 [2] - Congo, Dem. Rep. of Feb 28, 1995 Nov 30, 1994 [2] - Cook Islands (New Zealand) Mar 22, 2004 Dec 22, 2003 [2] - Costa Rica Oct 28, 1991 Jul 30, 1991 [2] - Croatia Dec 21, 1992 Sep 21, 1992 [4] - Cuba Oct 7, 1992 Jul 14, 1992 [2] - Cyprus Aug 26, 1992 May 28, 1992 [2] - Czech Republic Dec 30, 1993 Sep 30, 1993 [4] - Côte d'Ivoire Jul 5, 1993 Apr 5, 1993 [2] - Denmark Aug 8, 1988 Sep 29, 1988 [1] Mar 22, 1985 Djibouti Oct 28, 1999 Jul 30, 1999 [2] - Dominica Jul 1, 1993 Mar 31, 1993 [2] - Dominican Republic Aug 18, 1993 May 18, 1993 [2] - Ecuador Jul 9, 1990 Apr 10, 1990 [2] - Egypt Sep 22, 1988 May 9, 1988 [1] Mar 22, 1985 El Salvador Jan 2, 1993 Oct 2, 1992 [2] - Equatorial Guinea Nov 15, 1988 Aug 17, 1988 [2] - Eritrea Jun 10, 2005 Mar 10, 2005 [2] - Estonia Jan 15, 1997 Oct 17, 1996 [2] - Eswatini, Kingdom of Jan 10, 1993 Nov 10, 1992 [2] - Ethiopia Jan 9, 1995 Oct 11, 1994 [2] - European Union Jan 14, 1989 Oct 17, 1988 [3] Mar 22, 1985 Fiji Jan 21, 1990 Oct 23, 1989 [2] - Finland Sep 22, 1988 Sep 26, 1986 [1] Mar 22, 1985 France Sep 22, 1988 Dec 4, 1987 [3] Mar 22, 1985 Gabon May 10, 1994 Feb 9, 1994 [2] - Gambia Oct 23, 1990 Jul 25, 1990 [2] - Georgia Jun 19, 1996 Mar 21, 1996 [2] - Germany Dec 29, 1988 Sep 30, 1988 [1] Mar 22, 1985 Ghana Oct 22, 1989 Jul 24, 1989 [2] - Greece Mar 29, 1989 Dec 29, 1988 [1] Mar 22, 1985 Grenada Jun 30, 1993 Mar 31, 1993 [2] - Guatemala Sep 22, 1988 Sep 11, 1987 [2] - Guinea Sep 23, 1992 Jun 25, 1992 [2] - Guinea-Bissau Feb 10, 2003 Nov 12, 2002 [2] - Guyana Nov 10, 1993 Aug 12, 1993 [2] - Haiti Jun 27, 2000 Mar 29, 2000 [2] - Holy See Aug 3, 2008 May 5, 2008 [2] - Honduras Jan 12, 1994 Oct 14, 1993 [2] - Hungary Sep 22, 1988 May 4, 1988 [2] - Iceland Nov 27, 1989 Aug 29, 1989 [2] - India Jun 16, 1991 Mar 18, 1991 [2] - Indonesia Sep 24, 1992 Jun 26, 1992 [2] - Iran, Islamic Republic of Jan 3, 1991 Oct 3, 1990 [2] - Iraq Sep 23, 2008 Jun 25, 2008 [2] - Ireland Dec 14, 1988 Sep 15, 1988 [2] - Israel Sep 30, 1992 Jun 30, 1992 [2] - Italy Dec 18, 1988 Sep 19, 1988 [1] Mar 22, 1985 Jamaica Jun 30, 1993 Mar 31, 1993 [2] - Japan Dec 28, 1988 Sep 30, 1988 [2] - Jordan Aug 31, 1989 May 31, 1989 [2] - Kazakhstan Feb 9, 1999 Aug 26, 1998 [2] - Kenya Feb 7, 1989 Nov 9, 1988 [2] - Kiribati Apr 8, 1993 Jan 7, 1993 [2] - Korea, Dem. People's Rep. Apr 25, 1995 Jan 24, 1995 [2] - Korea, Republic of May 27, 1992 Feb 27, 1992 [2] - Kuwait Feb 23, 1993 Nov 23, 1992 [2] - Kyrgyzstan Aug 29, 2000 May 31, 2000 [2] - Lao, People's Dem. Rep. Nov 19, 1999 Aug 21, 1998 [2] - Latvia Jul 27, 1995 Apr 28, 1995 [2] - Lebanon Jun 30, 1993 Mar 30, 1993 [2] - Lesotho Jun 23, 1994 Mar 25, 1994 [2] - Liberia Apr 14, 1996 Jan 15, 1996 [2] - Libya Oct 9, 1990 Jul 11, 1990 [2] - Liechtenstein May 9, 1989 Feb 8, 1989 [2] - Lithuania Apr 20, 1995 Jan 18, 1995 [2] - Luxembourg Jan 15, 1989 Oct 17, 1988 [1] Apr 17, 1985 Madagascar Feb 7, 1997 Nov 7, 1996 [2] - Malawi Apr 9, 1991 Jan 9, 1991 [2] - Malaysia Nov 27, 1989 Aug 29, 1989 [2] - Maldives Sep 22, 1988 Apr 26, 1988 [2] - Mali Jan 26, 1995 Oct 28, 1994 [2] - Malta Dec 14, 1988 Sep 15, 1988 [2] - Marshall Islands Jun 11, 1993 Mar 11, 1993 [2] - Mauritania Aug 24, 1994 May 26, 1994 [2] - Mauritius Nov 16, 1992 Aug 18, 1992 [2] - Mexico Sep 22, 1988 Sep 14, 1987 [1] Apr 1, 1985 Micronesia, Fed. States Nov 1, 1994 Aug 3, 1994 [2] - Moldova, Republic of Jan 22, 1997 Oct 24, 1996 [2] - Monaco Jun 12, 1993 Mar 12, 1993 [2] - Mongolia Jun 5, 1996 Mar 7, 1996 [2] - Montenegro Jan 21, 2007 Oct 23, 2006 [4] - Morocco Mar 27, 1996 Dec 28, 1995 [1] Feb 7, 1986 Mozambique Dec 8, 1994 Sep 9, 1994 [2] - Myanmar Feb 22, 1994 Nov 24, 1993 [2] - Namibia Dec 20, 1993 Sep 20, 1993 [2] - Nauru Feb 10, 2002 Nov 12, 2001 [2] - Nepal Oct 4, 1994 Jul 6, 1994 [2] - Netherlands Dec 27, 1988 Sep 28, 1988 [3] Mar 22, 1985 New Zealand Sep 22, 1988 Jun 2, 1987 [1] Mar 21, 1986 Nicaragua Jun 3, 1993 Mar 5, 1993 [2] - Niger Jan 9, 1993 Oct 9, 1992 [2] - Nigeria Jan 29, 1989 Oct 31, 1988 [2] - Niue (New Zealand) Mar 22, 2004 Dec 22, 2003 [2] - North Macedonia Jun 8, 1994 Mar 10, 1994 [4] - Norway Sep 22, 1988 Sep 23, 1986 [1] Mar 22, 1985 Oman Sep 30, 1999 Jun 30, 1999 [2] - Pakistan Mar 18, 1993 Dec 18, 1992 [2] - Palau Aug 27, 2001 May 29, 2001 [2] - Palestinian Authority Jun 16, 2019 Mar 18, 2019 [2] - Panama May 14, 1989 Feb 13, 1989 [2] - Papua New Guinea Jan 27, 1993 Oct 27, 1992 [2] - Paraguay Mar 3, 1993 Dec 3, 1992 [2] - Peru Jul 6, 1989 Apr 7, 1989 [1] Mar 22, 1985 Philippines Oct 15, 1991 Jul 17, 1991 [2] - Poland Oct 11, 1990 Jul 13, 1990 [2] - Portugal Jan 15, 1989 Oct 17, 1988 [2] - Qatar Apr 21, 1996 Jan 22, 1996 [2] - Romania Apr 27, 1993 Jan 27, 1993 [2] - Russian Federation Sep 22, 1988 Jun 18, 1986 [3] Mar 22, 1985 Rwanda Jan 9, 2002 Oct 11, 2001 [2] - Saint Kitts and Nevis Nov 10, 1992 Aug 10, 1992 [2] - Saint Lucia Oct 26, 1993 Jul 28, 1993 [2] - Saint Vincent and the Grenadines Mar 2, 1997 Dec 2, 1996 [2] - Samoa Mar 21, 1993 Dec 21, 1992 [2] - San Marino Jul 22, 2009 Apr 23, 2009 [2] - Sao Tome and Principe Feb 17, 2002 Nov 19, 2001 [2] - Saudi Arabia Jun 1, 1993 Mar 1, 1993 [2] - Senegal Jun 17, 1993 Mar 19, 1993 [2] - Serbia Jun 10, 2001 Mar 12, 2001 [4] - Seychelles Apr 6, 1993 Jan 6, 1993 [2] - Sierra Leone Nov 27, 2001 Aug 29, 2001 [2] - Singapore Apr 5, 1989 Jan 5, 1989 [2] - Slovakia Aug 26, 1993 May 28, 1993 [4] - Slovenia Oct 4, 1992 Jul 6, 1992 [4] - Solomon Islands Sep 15, 1993 Jun 17, 1993 [2] - Somalia Oct 30, 2001 Aug 1, 2001 [2] - South Africa Apr 15, 1990 Jan 15, 1990 [2] - South Sudan Apr 11, 2012 Jan 12, 2012 [2] - Spain Oct 23, 1988 Jul 25, 1988 [2] - Sri Lanka Mar 13, 1990 Dec 15, 1989 [2] - Sudan Apr 29, 1993 Jan 29, 1993 [2] - Suriname Jan 12, 1998 Oct 14, 1997 [2] - Sweden Sep 22, 1988 Nov 26, 1986 [1] Mar 22, 1985 Switzerland Sep 22, 1988 Dec 17, 1987 [1] Mar 22, 1985 Syrian Arab Republic Mar 12, 1990 Dec 12, 1989 [2] - Tajikistan Aug 4, 1996 May 6, 1996 [2] - Tanzania, Un. Rep. of Jul 7, 1993 Apr 7, 1993 [2] - Thailand Oct 5, 1989 Jul 7, 1989 [2] - Timor-Leste Dec 16, 2009 Sep 16, 2009 [2] - Togo May 26, 1991 Feb 25, 1991 [2] - Tonga Oct 27, 1998 Jul 29, 1998 [2] - Trinidad and Tobago Nov 26, 1989 Aug 28, 1989 [2] - Tunisia Dec 24, 1989 Sep 25, 1989 [2] - Turkey Dec 19, 1991 Sep 20, 1991 [2] - Turkmenistan Feb 16, 1994 Nov 18, 1993 [2] - Tuvalu Oct 13, 1993 Jul 15, 1993 [2] - Uganda Sep 22, 1988 Jun 24, 1988 [2] - Ukraine Sep 22, 1988 Jun 18, 1986 [3] Mar 22, 1985 United Arab Emirates Mar 22, 1990 Dec 22, 1989 [2] - United Kingdom Sep 22, 1988 May 15, 1987 [1] May 20, 1985 United States of America Sep 22, 1988 Aug 27, 1986 [1] Mar 22, 1985 Uruguay May 28, 1989 Feb 27, 1989 [2] - Uzbekistan Aug 16, 1993 May 18, 1993 [2] - Vanuatu Feb 19, 1995 Nov 21, 1994 [2] - Venezuela, Boliv. Rep. of Nov 30, 1988 Sep 1, 1988 [2] - Viet Nam Apr 26, 1994 Jan 26, 1994 [2] - Yemen May 21, 1996 Feb 21, 1996 [2] - Zambia Apr 24, 1990 Jan 24, 1990 [2] - Zimbabwe Feb 3, 1993 Nov 3, 1992 [2] - * [1] Ratification [2] Accession/approbation [3] Acceptance/approval [4] Succession [5] Consent to be bound [6] Definite signature reset zoom out zoom in References - Treaties Enables Montreal Protocol on Substances that Deplete the Ozone Layer Treaty | Multilateral | Montreal | Sep 16, 1987 Keyword: Ozone layer Source: IUCN (ID: TRE-000953) Amendment to the Montreal Protocol on Substances that Deplete the Ozone Layer Treaty | Multilateral | Beijing | Dec 3, 1999 Keyword: Ozone layer Source: IUCN (ID: TRE-001339) Cited by United Nations Framework Convention on Climate Change Treaty | Multilateral | New York | Jun 22, 1992 Keyword: Climate change, Intergenerational equity, Technology transfer, Data collection/reporting, International organization, Education, Access-to-information, Sustainable development, Inventory, Emissions, EIA, Research, Dispute settlement, Monitoring, Precautionary principle, Ozone layer, Public participation Source: IUCN (ID: TRE-001147) Other references Treaty decisions 158 decisions related to this treaty. View decisions Literature 60 records related to this treaty. View literature