Action 3021

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Membership Information for: Montreal Protocol On Substances That Deplete The Ozone Layer

Signed: 1987-09-16; Entered into force: 1989-01-01; Terminated:
Source for membership data: https://treaties.un.org/pages/ViewDetails.aspx?src=TREATY&mtdsg_no=XXVII-2-a&cha…
Date of last download from source: 2022-03-14
This is the IEADB's most current data on signature, ratification, entry into force, and other membership actions. The IEADB updates this data approximately once a year and tries to ensure it is current and accurate. For the most current data, visit the Ozone Secretariat website. For inaccuracies, please notify the Project Director.
Agreement Action Country Year Month Day Edit link
Ratification, Accession, Succession, or Similar Sao Tome and Principe 2001 11 19
Ratification, Accession, Succession, or Similar Saudi Arabia 1993 3 1
Ratification, Accession, Succession, or Similar Senegal 1993 5 6
Ratification, Accession, Succession, or Similar Serbia 2001 3 12
Ratification, Accession, Succession, or Similar Seychelles 1993 1 6
Ratification, Accession, Succession, or Similar Sierra Leone 2001 8 29
Ratification, Accession, Succession, or Similar Singapore 1989 1 5
Ratification, Accession, Succession, or Similar Slovakia 1993 5 28
Ratification, Accession, Succession, or Similar Slovenia 1992 7 6
Ratification, Accession, Succession, or Similar Solomon Islands 1993 6 17
Ratification, Accession, Succession, or Similar Somalia 2001 8 1
Ratification, Accession, Succession, or Similar South Africa 1990 1 15
Ratification, Accession, Succession, or Similar South Sudan 2012 1 12
Ratification, Accession, Succession, or Similar Spain 1988 12 16
Ratification, Accession, Succession, or Similar Sri Lanka 1989 12 15
Ratification, Accession, Succession, or Similar Sudan 1993 1 29
Ratification, Accession, Succession, or Similar Suriname 1997 10 14
Ratification, Accession, Succession, or Similar Sweden 1988 6 29
Ratification, Accession, Succession, or Similar Switzerland 1988 12 28
Ratification, Accession, Succession, or Similar Syria 1989 12 12
Ratification, Accession, Succession, or Similar Tajikistan 1998 1 7
Ratification, Accession, Succession, or Similar Tanzania 1993 4 16
Ratification, Accession, Succession, or Similar Thailand 1989 7 7
Ratification, Accession, Succession, or Similar Timor-Leste 2009 9 16
Ratification, Accession, Succession, or Similar Togo 1991 2 25
Ratification, Accession, Succession, or Similar Tonga 1998 7 29
Ratification, Accession, Succession, or Similar Trinidad and Tobago 1989 8 28
Ratification, Accession, Succession, or Similar Tunisia 1989 9 25
Ratification, Accession, Succession, or Similar Türkiye 1991 9 20
Ratification, Accession, Succession, or Similar Turkmenistan 1993 11 18
Ratification, Accession, Succession, or Similar Tuvalu 1993 7 15
Ratification, Accession, Succession, or Similar Uganda 1988 9 15
Ratification, Accession, Succession, or Similar Ukraine (Soviet period) 1988 9 20
Ratification, Accession, Succession, or Similar United Arab Emirates 1989 12 22
Ratification, Accession, Succession, or Similar United Kingdom 1988 12 16
Ratification, Accession, Succession, or Similar United States 1988 4 21
Ratification, Accession, Succession, or Similar Uruguay 1991 1 8
Ratification, Accession, Succession, or Similar Uzbekistan 1993 5 18
Ratification, Accession, Succession, or Similar Vanuatu 1994 11 21
Ratification, Accession, Succession, or Similar Venezuela 1989 2 6
Ratification, Accession, Succession, or Similar Viet Nam 1994 1 26
Ratification, Accession, Succession, or Similar Yemen 1996 2 21
Ratification, Accession, Succession, or Similar Zambia 1990 1 24
Ratification, Accession, Succession, or Similar Zimbabwe 1992 11 3
Entry Into Force Afghanistan 2004 9 15
Entry Into Force Albania 2000 1 8
Entry Into Force Algeria 1993 1 18
Entry Into Force Andorra 2009 4 26
Entry Into Force Angola 2000 8 17
Entry Into Force Antigua and Barbuda 1993 3 3
Entry Into Force Argentina 1990 12 18
Entry Into Force Armenia 2000 1 1
Entry Into Force Australia 1989 8 19
Entry Into Force Austria 1989 8 3
Entry Into Force Azerbaijan 1996 9 10
Entry Into Force Bahamas 1993 8 2
Entry Into Force Bahrain 1990 7 27
Entry Into Force Bangladesh 1990 11 2
Entry Into Force Barbados 1993 1 16
Entry Into Force Belarus (Soviet period) 1989 1 1
Entry Into Force Belgium 1989 1 1
Entry Into Force Belize 1998 4 9
Entry Into Force Benin 1993 10 1
Entry Into Force Bhutan 2004 11 21
Entry Into Force Bolivia 1995 1 1
Entry Into Force Bosnia and Herzegovina 1993 12 1
Entry Into Force Botswana 1992 3 4
Entry Into Force Brazil 1990 6 19
Entry Into Force Brunei Darussalam 1993 8 27
Entry Into Force Bulgaria 1991 2 20
Entry Into Force Burkina Faso 1989 10 20
Entry Into Force Burundi 1997 4 6
Entry Into Force Cambodia 2001 9 27
Entry Into Force Cameroon 1989 11 30
Entry Into Force Canada 1989 1 1
Entry Into Force Cape Verde 2001 10 29
Entry Into Force Central African Republic 1993 6 29
Entry Into Force Chad 1994 9 7
Entry Into Force Chile 1990 6 26
Entry Into Force China 1991 9 14
Entry Into Force Colombia 1994 3 6
Entry Into Force Comoros 1995 1 29
Entry Into Force Congo, Democratic Republic of 1995 2 28
Entry Into Force Congo, Republic of the 1995 2 14
Entry Into Force Cook Islands 2004 3 22
Entry Into Force Costa Rica 1991 10 30
Entry Into Force Cote d'Ivoire 1993 7 5
Entry Into Force Croatia 1992 12 21
Entry Into Force Cuba 1992 10 14
Entry Into Force Cyprus 1992 8 28
Entry Into Force Czechia 1993 4 1
Entry Into Force Denmark 1989 1 1
Entry Into Force Djibouti 1999 10 28
Entry Into Force Dominica 1993 6 29
Entry Into Force Dominican Republic 1993 8 18
Entry Into Force Ecuador 1990 7 30
Entry Into Force Egypt 1989 1 1
Entry Into Force El Salvador 1993 1 2
Entry Into Force Equatorial Guinea 2006 12 6
Entry Into Force Eritrea 2005 6 10

Pages

Membership status is coded as follows:

  • Countries listed are those that have signed and/or ratified the IEA in question.
  • Legend:
    • 0 (pink): Signer: country signed but did not ratify IEA. Status is 0 for all countries until IEA enters into force.
    • 1 (yellow): Ratifier: country signed and ratified IEA but IEA had not entered into force. Status is 1 for countries that have ratified until IEA enters into force.
    • 2 (green):Member: country signed and ratified IEA and IEA has entered into force for that country.
    • Ratifier row is count of states that have ratified.
    • Membership row is count (not sum) of members.
  • If membership data source lacks entry into force date, membership is inferred from year of ratification, if that year occurs after entry into force year of IEA.
  • Status can return to 0 if an IEA is terminated or if a country withdraws. In rare cases, countries later re-join IEAs, with their status returning to 2.
  • Action tab: membership by Action, Country, Year, Month, Day.
  • Wide tab: Annual status data (countries as rows, years as columns).
  • Long tab: Annual status data in Stata format (Country, Year, Membership Status).