Long 8509

Membership Information for: Amendment to the Montreal Protocol on Substances that Deplete the Ozone Layer

Signed: 2016-10-15; Entered into force: 2019-01-01; Terminated:
Source for membership data: https://treaties.un.org/pages/ViewDetails.aspx?src=TREATY&mtdsg_no=XXVII-2-f&cha…
Date of last download from source: 2022-11-01
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.
CountryYearMembership Status
Albania20192
Albania20202
Albania20212
Albania20222
Albania20232
Albania20242
Andorra20192
Andorra20202
Andorra20212
Andorra20222
Andorra20232
Andorra20242
Angola20201
Angola20212
Angola20222
Angola20232
Angola20242
Argentina20191
Argentina20202
Argentina20212
Argentina20222
Argentina20232
Argentina20242
Armenia20192
Armenia20202
Armenia20212
Armenia20222
Armenia20232
Armenia20242
Australia20171
Australia20181
Australia20192
Australia20202
Australia20212
Australia20222
Australia20232
Australia20242
Austria20181
Austria20192
Austria20202
Austria20212
Austria20222
Austria20232
Austria20242
Bangladesh20202
Bangladesh20212
Bangladesh20222
Bangladesh20232
Bangladesh20242
Barbados20181
Barbados20192
Barbados20202
Barbados20212
Barbados20222
Barbados20232
Barbados20242
Belarus20221
Belarus20232
Belarus20242
Belgium20181
Belgium20192
Belgium20202
Belgium20212
Belgium20222
Belgium20232
Belgium20242
Benin20181
Benin20192
Benin20202
Benin20212
Benin20222
Benin20232
Benin20242
Bhutan20192
Bhutan20202
Bhutan20212
Bhutan20222
Bhutan20232
Bhutan20242
Bolivia20201
Bolivia20212
Bolivia20222
Bolivia20232
Bolivia20242
Bosnia and Herzegovina20212
Bosnia and Herzegovina20222
Bosnia and Herzegovina20232
Bosnia and Herzegovina20242
Botswana20202
Botswana20212
Botswana20222
Botswana20232
Botswana20242
Brazil20221
Brazil20232
Brazil20242
Bulgaria20181
Bulgaria20192
Bulgaria20202
Bulgaria20212
Bulgaria20222
Bulgaria20232
Bulgaria20242
Burkina Faso20181
Burkina Faso20192
Burkina Faso20202
Burkina Faso20212
Burkina Faso20222
Burkina Faso20232
Burkina Faso20242
Burundi20212
Burundi20222
Burundi20232
Burundi20242
Cambodia20212
Cambodia20222
Cambodia20232
Cambodia20242
Cameroon20212
Cameroon20222
Cameroon20232
Cameroon20242
Canada20171
Canada20181
Canada20192
Canada20202
Canada20212
Canada20222
Canada20232
Canada20242
Cape Verde20201
Cape Verde20212
Cape Verde20222
Cape Verde20232
Cape Verde20242
Chad20192
Chad20202
Chad20212
Chad20222
Chad20232
Chad20242
Chile20171
Chile20181
Chile20192
Chile20202
Chile20212
Chile20222
Chile20232
Chile20242
China20212
China20222
China20232
China20242
Colombia20212
Colombia20222
Colombia20232
Colombia20242
Comoros20171
Comoros20181
Comoros20192
Comoros20202
Comoros20212
Comoros20222
Comoros20232
Comoros20242
Congo, Republic of the20222
Congo, Republic of the20232
Congo, Republic of the20242
Cook Islands20192
Cook Islands20202
Cook Islands20212
Cook Islands20222
Cook Islands20232
Cook Islands20242
Costa Rica20181
Costa Rica20192
Costa Rica20202
Costa Rica20212
Costa Rica20222
Costa Rica20232
Costa Rica20242
Cote d'Ivoire20171
Cote d'Ivoire20181
Cote d'Ivoire20192
Cote d'Ivoire20202
Cote d'Ivoire20212
Cote d'Ivoire20222
Cote d'Ivoire20232
Cote d'Ivoire20242
Croatia20181
Croatia20192
Croatia20202
Croatia20212
Croatia20222
Croatia20232
Croatia20242
Cuba20192
Cuba20202
Cuba20212
Cuba20222
Cuba20232
Cuba20242
Cyprus20192
Cyprus20202
Cyprus20212
Cyprus20222
Cyprus20232
Cyprus20242
Czechia20181
Czechia20192
Czechia20202
Czechia20212
Czechia20222
Czechia20232
Czechia20242
Denmark20181
Denmark20192
Denmark20202
Denmark20212
Denmark20222
Denmark20232
Denmark20242
Dominican Republic20212
Dominican Republic20222
Dominican Republic20232
Dominican Republic20242
Ecuador20181
Ecuador20192
Ecuador20202
Ecuador20212
Ecuador20222
Ecuador20232
Ecuador20242
El Salvador20212
El Salvador20222
El Salvador20232
El Salvador20242
Estonia20181
Estonia20192
Estonia20202
Estonia20212
Estonia20222
Estonia20232
Estonia20242
Eswatini20201
Eswatini20212
Eswatini20222
Eswatini20232
Eswatini20242
Ethiopia20192
Ethiopia20202
Ethiopia20212
Ethiopia20222
Ethiopia20232
Ethiopia20242
European Union20181
European Union20192
European Union20202
European Union20212
European Union20222
European Union20232
European Union20242
Fiji20202
Fiji20212
Fiji20222
Fiji20232
Fiji20242
Finland20171
Finland20181
Finland20192
Finland20202
Finland20212
Finland20222
Finland20232
Finland20242
France20181
France20192
France20202
France20212
France20222
France20232
France20242
Gabon20181
Gabon20192
Gabon20202
Gabon20212
Gabon20222
Gabon20232
Gabon20242
Gambia20212
Gambia20222
Gambia20232
Gambia20242
Germany20171
Germany20181
Germany20192
Germany20202
Germany20212
Germany20222
Germany20232
Germany20242
Ghana20192
Ghana20202
Ghana20212
Ghana20222
Ghana20232
Ghana20242
Greece20181
Greece20192
Greece20202
Greece20212
Greece20222
Greece20232
Greece20242
Grenada20181
Grenada20192
Grenada20202
Grenada20212
Grenada20222
Grenada20232
Grenada20242
Guinea20191
Guinea20202
Guinea20212
Guinea20222
Guinea20232
Guinea20242
Guinea-Bissau20181
Guinea-Bissau20192
Guinea-Bissau20202
Guinea-Bissau20212
Guinea-Bissau20222
Guinea-Bissau20232
Guinea-Bissau20242
Holy See20202
Holy See20212
Holy See20222
Holy See20232
Holy See20242
Honduras20192
Honduras20202
Honduras20212
Honduras20222
Honduras20232
Honduras20242
Hungary20181
Hungary20192
Hungary20202
Hungary20212
Hungary20222
Hungary20232
Hungary20242
Iceland20212
Iceland20222
Iceland20232
Iceland20242
India20212
India20222
India20232
India20242
Ireland20181
Ireland20192
Ireland20202
Ireland20212
Ireland20222
Ireland20232
Ireland20242
Italy20222
Italy20232
Italy20242
Japan20181
Japan20192
Japan20202
Japan20212
Japan20222
Japan20232
Japan20242
Jordan20191
Jordan20202
Jordan20212
Jordan20222
Jordan20232
Jordan20242
Kiribati20181
Kiribati20192
Kiribati20202
Kiribati20212
Kiribati20222
Kiribati20232
Kiribati20242
Korea, Democratic People's Republic20171
Korea, Democratic People's Republic20181
Korea, Democratic People's Republic20192
Korea, Democratic People's Republic20202
Korea, Democratic People's Republic20212
Korea, Democratic People's Republic20222
Korea, Democratic People's Republic20232
Korea, Democratic People's Republic20242
Kyrgyzstan20202
Kyrgyzstan20212
Kyrgyzstan20222
Kyrgyzstan20232
Kyrgyzstan20242
Laos20171
Laos20181
Laos20192
Laos20202
Laos20212
Laos20222
Laos20232
Laos20242
Latvia20181
Latvia20192
Latvia20202
Latvia20212
Latvia20222
Latvia20232
Latvia20242
Lebanon20202
Lebanon20212
Lebanon20222
Lebanon20232
Lebanon20242
Lesotho20191
Lesotho20202
Lesotho20212
Lesotho20222
Lesotho20232
Lesotho20242
Liberia20202
Liberia20212
Liberia20222
Liberia20232
Liberia20242
Liechtenstein20202
Liechtenstein20212
Liechtenstein20222
Liechtenstein20232
Liechtenstein20242
Lithuania20181
Lithuania20192
Lithuania20202
Lithuania20212
Lithuania20222
Lithuania20232
Lithuania20242
Luxembourg20171
Luxembourg20181
Luxembourg20192
Luxembourg20202
Luxembourg20212
Luxembourg20222
Luxembourg20232
Luxembourg20242
Malawi20171
Malawi20181
Malawi20192
Malawi20202
Malawi20212
Malawi20222
Malawi20232
Malawi20242
Malaysia20201
Malaysia20212
Malaysia20222
Malaysia20232
Malaysia20242
Maldives20171
Maldives20181
Maldives20192
Maldives20202
Maldives20212
Maldives20222
Maldives20232
Maldives20242
Mali20171
Mali20181
Mali20192
Mali20202
Mali20212
Mali20222
Mali20232
Mali20242
Marshall Islands20171
Marshall Islands20181
Marshall Islands20192
Marshall Islands20202
Marshall Islands20212
Marshall Islands20222
Marshall Islands20232
Marshall Islands20242
Mauritius20192
Mauritius20202
Mauritius20212
Mauritius20222
Mauritius20232
Mauritius20242
Mexico20181
Mexico20192
Mexico20202
Mexico20212
Mexico20222
Mexico20232
Mexico20242
Micronesia20171
Micronesia20181
Micronesia20192
Micronesia20202
Micronesia20212
Micronesia20222
Micronesia20232
Micronesia20242
Mongolia20222
Mongolia20232
Mongolia20242
Montenegro20192
Montenegro20202
Montenegro20212
Montenegro20222
Montenegro20232
Montenegro20242
Morocco20222
Morocco20232
Morocco20242
Mozambique20202
Mozambique20212
Mozambique20222
Mozambique20232
Mozambique20242
Namibia20192
Namibia20202
Namibia20212
Namibia20222
Namibia20232
Namibia20242
Nauru20221
Nauru20232
Nauru20242
Netherlands20181
Netherlands20192
Netherlands20202
Netherlands20212
Netherlands20222
Netherlands20232
Netherlands20242
New Zealand20191
New Zealand20202
New Zealand20212
New Zealand20222
New Zealand20232
New Zealand20242
Nicaragua20202
Nicaragua20212
Nicaragua20222
Nicaragua20232
Nicaragua20242
Niger20181
Niger20192
Niger20202
Niger20212
Niger20222
Niger20232
Niger20242
Nigeria20181
Nigeria20192
Nigeria20202
Nigeria20212
Nigeria20222
Nigeria20232
Nigeria20242
Niue20181
Niue20192
Niue20202
Niue20212
Niue20222
Niue20232
Niue20242
North Macedonia20202
North Macedonia20212
North Macedonia20222
North Macedonia20232
North Macedonia20242
Norway20171
Norway20181
Norway20192
Norway20202
Norway20212
Norway20222
Norway20232
Norway20242
Palau20171
Palau20181
Palau20192
Palau20202
Palau20212
Palau20222
Palau20232
Palau20242
Panama20181
Panama20192
Panama20202
Panama20212
Panama20222
Panama20232
Panama20242
Paraguay20181
Paraguay20192
Paraguay20202
Paraguay20212
Paraguay20222
Paraguay20232
Paraguay20242
Peru20192
Peru20202
Peru20212
Peru20222
Peru20232
Peru20242
Philippines20221
Philippines20232
Philippines20242
Poland20192
Poland20202
Poland20212
Poland20222
Poland20232
Poland20242
Portugal20181
Portugal20192
Portugal20202
Portugal20212
Portugal20222
Portugal20232
Portugal20242
Romania20202
Romania20212
Romania20222
Romania20232
Romania20242
Russian Federation20201
Russian Federation20212
Russian Federation20222
Russian Federation20232
Russian Federation20242
Rwanda20171
Rwanda20181
Rwanda20192
Rwanda20202
Rwanda20212
Rwanda20222
Rwanda20232
Rwanda20242
Saint Lucia20211
Saint Lucia20222
Saint Lucia20232
Saint Lucia20242
Saint Vincent and the Grenadines20221
Saint Vincent and the Grenadines20232
Saint Vincent and the Grenadines20242
Samoa20181
Samoa20192
Samoa20202
Samoa20212
Samoa20222
Samoa20232
Samoa20242
San Marino20201
San Marino20212
San Marino20222
San Marino20232
San Marino20242
Sao Tome and Principe20191
Sao Tome and Principe20202
Sao Tome and Principe20212
Sao Tome and Principe20222
Sao Tome and Principe20232
Sao Tome and Principe20242
Senegal20181
Senegal20192
Senegal20202
Senegal20212
Senegal20222
Senegal20232
Senegal20242
Serbia20211
Serbia20222
Serbia20232
Serbia20242
Seychelles20192
Seychelles20202
Seychelles20212
Seychelles20222
Seychelles20232
Seychelles20242
Sierra Leone20202
Sierra Leone20212
Sierra Leone20222
Sierra Leone20232
Sierra Leone20242
Singapore20222
Singapore20232
Singapore20242
Slovakia20171
Slovakia20181
Slovakia20192
Slovakia20202
Slovakia20212
Slovakia20222
Slovakia20232
Slovakia20242
Slovenia20181
Slovenia20192
Slovenia20202
Slovenia20212
Slovenia20222
Slovenia20232
Slovenia20242
Solomon Islands20222
Solomon Islands20232
Solomon Islands20242
Somalia20191
Somalia20202
Somalia20212
Somalia20222
Somalia20232
Somalia20242
South Africa20192
South Africa20202
South Africa20212
South Africa20222
South Africa20232
South Africa20242
Spain20220
Spain20230
Spain20240
Sri Lanka20181
Sri Lanka20192
Sri Lanka20202
Sri Lanka20212
Sri Lanka20222
Sri Lanka20232
Sri Lanka20242
Sweden20171
Sweden20181
Sweden20192
Sweden20202
Sweden20212
Sweden20222
Sweden20232
Sweden20242
Switzerland20181
Switzerland20192
Switzerland20202
Switzerland20212
Switzerland20222
Switzerland20232
Switzerland20242
Syria20212
Syria20222
Syria20232
Syria20242
Tajikistan20222
Tajikistan20232
Tajikistan20242
Tanzania20222
Tanzania20232
Tanzania20242
Togo20181
Togo20192
Togo20202
Togo20212
Togo20222
Togo20232
Togo20242
Tonga20181
Tonga20192
Tonga20202
Tonga20212
Tonga20222
Tonga20232
Tonga20242
Trinidad and Tobago20171
Trinidad and Tobago20181
Trinidad and Tobago20192
Trinidad and Tobago20202
Trinidad and Tobago20212
Trinidad and Tobago20222
Trinidad and Tobago20232
Trinidad and Tobago20242
Tunisia20212
Tunisia20222
Tunisia20232
Tunisia20242
Turkmenistan20202
Turkmenistan20212
Turkmenistan20222
Turkmenistan20232
Turkmenistan20242
Tuvalu20171
Tuvalu20181
Tuvalu20192
Tuvalu20202
Tuvalu20212
Tuvalu20222
Tuvalu20232
Tuvalu20242
Türkiye20211
Türkiye20222
Türkiye20232
Türkiye20242
Uganda20181
Uganda20192
Uganda20202
Uganda20212
Uganda20222
Uganda20232
Uganda20242
United Kingdom20171
United Kingdom20181
United Kingdom20192
United Kingdom20202
United Kingdom20212
United Kingdom20222
United Kingdom20232
United Kingdom20242
United States20221
United States20232
United States20242
Uruguay20181
Uruguay20192
Uruguay20202
Uruguay20212
Uruguay20222
Uruguay20232
Uruguay20242
Vanuatu20181
Vanuatu20192
Vanuatu20202
Vanuatu20212
Vanuatu20222
Vanuatu20232
Vanuatu20242
Viet Nam20192
Viet Nam20202
Viet Nam20212
Viet Nam20222
Viet Nam20232
Viet Nam20242
Zambia20212
Zambia20222
Zambia20232
Zambia20242
Zimbabwe20221
Zimbabwe20232
Zimbabwe20242

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).