Wide 4007

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

Signed: 1990-06-29; Entered into force: 1991-03-07
Source for membership data: http://ozone.unep.org/new_site/en/Treaties/treaty_text.php?treatyID=7
Last downloaded: 2016-10-15; Last known update: 1991-03-07
The following is data currently in the IEA database for agreement actions. Agreement actions (signature, ratification, entry into force) can change frequently. The IEA Database Project updates this data approximately once a year and tries to ensure it is current and accurate. You are encouraged to visit the Ozone Secretariat website to look for the most accurate and up-to-date membership information. If you have questions about this data or notice inaccuracies, please contact the Project Director.
This amendment was adopted under a provision of the agreement being amended that allows for entry into force via their “tacit acceptance,” for all countries that do not object in a specified period of time. The membership information here has been inferred based on membership in the agreement being amended.
Country1990199119921993199419951996199719981999200020012002200320042005200620072008200920102011201220132014201520162017
Ratifiers0000000000000022222222222222
Members (agreement in force)07284126138149156161167169174180183184188189190191193196196196197197197197197197
Afghanistan0000000000000022222222222222
Albania0000000000222222222222222222
Algeria0002222222222222222222222222
Andorra0000000000000000000222222222
Angola0000000000222222222222222222
Antigua and Barbuda0002222222222222222222222222
Argentina0222222222222222222222222222
Armenia0000000000222222222222222222
Australia0222222222222222222222222222
Austria0222222222222222222222222222
Azerbaijan0000002222222222222222222222
Bahamas0002222222222222222222222222
Bahrain0222222222222222222222222222
Bangladesh0222222222222222222222222222
Barbados0002222222222222222222222222
Belarus (Soviet period)0222222222222222222222222222
Belgium0222222222222222222222222222
Belize0000000022222222222222222222
Benin0002222222222222222222222222
Bhutan0000000000000022222222222222
Bolivia0000022222222222222222222222
Bosnia and Herzegovina0002222222222222222222222222
Botswana0022222222222222222222222222
Brazil0222222222222222222222222222
Brunei Darussalam0002222222222222222222222222
Bulgaria0222222222222222222222222222
Burkina Faso0222222222222222222222222222
Burundi0000000222222222222222222222
Cambodia0000000000022222222222222222
Cameroon0222222222222222222222222222
Canada0222222222222222222222222222
Cape Verde0000000000022222222222222222
Central African Republic0002222222222222222222222222
Chad0000222222222222222222222222
Chile0222222222222222222222222222
China0222222222222222222222222222
Colombia0000222222222222222222222222
Comoros0000022222222222222222222222
Congo, Democratic Republic of0000022222222222222222222222
Congo, Republic of the0000022222222222222222222222
Cook Islands0000000000000022222222222222
Costa Rica0222222222222222222222222222
Cote d'Ivoire0002222222222222222222222222
Croatia0022222222222222222222222222
Cuba0022222222222222222222222222
Cyprus0022222222222222222222222222
Czech Republic0002222222222222222222222222
Denmark0222222222222222222222222222
Djibouti0000000002222222222222222222
Dominica0002222222222222222222222222
Dominican Republic0002222222222222222222222222
Ecuador0222222222222222222222222222
Egypt0222222222222222222222222222
El Salvador0002222222222222222222222222
Equatorial Guinea0000000000000000222222222222
Eritrea0000000000000002222222222222
Estonia0000000222222222222222222222
Ethiopia0000022222222222222222222222
European Union0222222222222222222222222222
Fiji0222222222222222222222222222
Finland0222222222222222222222222222
France0222222222222222222222222222
Gabon0000222222222222222222222222
Gambia0222222222222222222222222222
Georgia0000002222222222222222222222
Germany0222222222222222222222222222
Ghana0222222222222222222222222222
Greece0222222222222222222222222222
Grenada0002222222222222222222222222
Guatemala0222222222222222222222222222
Guinea0022222222222222222222222222
Guinea-Bissau0000000000000222222222222222
Guyana0002222222222222222222222222
Haiti0000000000222222222222222222
Holy See0000000000000000002222222222
Honduras0000222222222222222222222222
Hungary0222222222222222222222222222
Iceland0222222222222222222222222222
India0022222222222222222222222222
Indonesia0022222222222222222222222222
Iran0222222222222222222222222222
Iraq0000000000000000002222222222
Ireland0222222222222222222222222222
Israel0022222222222222222222222222
Italy0222222222222222222222222222
Jamaica0002222222222222222222222222
Japan0222222222222222222222222222
Jordan0222222222222222222222222222
Kazakhstan0000000022222222222222222222
Kenya0222222222222222222222222222
Kiribati0002222222222222222222222222
Korea, Democratic People's Republic0000022222222222222222222222
Korea, Republic of0022222222222222222222222222
Kuwait0002222222222222222222222222
Kyrgyzstan0000000000222222222222222222
Laos0000000022222222222222222222
Latvia0000022222222222222222222222
Lebanon0002222222222222222222222222
Lesotho0000222222222222222222222222
Liberia0000002222222222222222222222
Libya0222222222222222222222222222
Liechtenstein0222222222222222222222222222
Lithuania0000022222222222222222222222
Luxembourg0222222222222222222222222222
Macedonia0000222222222222222222222222
Madagascar0000000222222222222222222222
Malawi0222222222222222222222222222
Malaysia0222222222222222222222222222
Maldives0222222222222222222222222222
Mali0000022222222222222222222222
Malta0222222222222222222222222222
Marshall Islands0002222222222222222222222222
Mauritania0000222222222222222222222222
Mauritius0022222222222222222222222222
Mexico0222222222222222222222222222
Micronesia0000022222222222222222222222
Moldova0000000222222222222222222222
Monaco0002222222222222222222222222
Mongolia0000002222222222222222222222
Montenegro0000000000000000022222222222
Morocco0000002222222222222222222222
Mozambique0000222222222222222222222222
Myanmar0000222222222222222222222222
Namibia0002222222222222222222222222
Nauru0000000000002222222222222222
Nepal0000222222222222222222222222
Netherlands0222222222222222222222222222
New Zealand0222222222222222222222222222
Nicaragua0002222222222222222222222222
Niger0002222222222222222222222222
Nigeria0222222222222222222222222222
Niue0000000000000022222222222222
Norway0222222222222222222222222222
Oman0000000002222222222222222222
Pakistan0002222222222222222222222222
Palau0000000000022222222222222222
Panama0222222222222222222222222222
Papua New Guinea0002222222222222222222222222
Paraguay0002222222222222222222222222
Peru0002222222222222222222222222
Philippines0222222222222222222222222222
Poland0222222222222222222222222222
Portugal0222222222222222222222222222
Qatar0000002222222222222222222222
Romania0002222222222222222222222222
Russian Federation (Soviet period)0222222222222222222222222222
Rwanda0000000000002222222222222222
Saint Kitts and Nevis0022222222222222222222222222
Saint Lucia0002222222222222222222222222
Saint Vincent and the Grenadines0000000222222222222222222222
Samoa0002222222222222222222222222
San Marino0000000000000000000222222222
Sao Tome and Principe0000000000002222222222222222
Saudi Arabia0002222222222222222222222222
Senegal0002222222222222222222222222
Serbia and Montenegro0000000000022222222222222222
Seychelles0002222222222222222222222222
Sierra Leone0000000000022222222222222222
Singapore0222222222222222222222222222
Slovakia0002222222222222222222222222
Slovenia0022222222222222222222222222
Solomon Islands0002222222222222222222222222
Somalia0000000000022222222222222222
South Africa0222222222222222222222222222
South Sudan0000000000000000000000222222
Spain0222222222222222222222222222
Sri Lanka0222222222222222222222222222
Sudan0002222222222222222222222222
Suriname0000000022222222222222222222
Swaziland0002222222222222222222222222
Sweden0222222222222222222222222222
Switzerland0222222222222222222222222222
Syria0222222222222222222222222222
Tajikistan0000000022222222222222222222
Tanzania0002222222222222222222222222
Thailand0222222222222222222222222222
Timor-Leste0000000000000000000222222222
Togo0222222222222222222222222222
Tonga0000000022222222222222222222
Trinidad and Tobago0222222222222222222222222222
Tunisia0222222222222222222222222222
Turkey0222222222222222222222222222
Turkmenistan0000222222222222222222222222
Tuvalu0002222222222222222222222222
Uganda0222222222222222222222222222
Ukraine (Soviet period)0222222222222222222222222222
United Arab Emirates0222222222222222222222222222
United Kingdom0222222222222222222222222222
United States0222222222222222222222222222
Uruguay0222222222222222222222222222
Uzbekistan0002222222222222222222222222
Vanuatu0000022222222222222222222222
Venezuela0222222222222222222222222222
Viet Nam0000222222222222222222222222
Yemen0000002222222222222222222222
Zambia0222222222222222222222222222
Zimbabwe0002222222222222222222222222
Members (agreement in force)07284126138149156161167169174180183184188189190191193196196196197197197197197197
Ratifiers0000000000000022222222222222

Membership status is coded as follows:

  • Countries included are those that have signed and/or ratified the agreement in question. This means that countries that have signed but failed to ratify an agreement will appear in the table but with a status of "0" in all years, since the agreement would only enter into force for them if/once they ratify.
  • Where the membership data source provides it, membership status is based on the year of entry into force.
  • Where the membership data source does not provide entry into force data, membership is inferred from the year of a country's ratification, so long as that year occurs after the entry into force year of the agreement.
  • Because status reflects entry into force, status is "0" for ALL countries from the date of signature of the agreement until the date the agreement enters into force generally.
  • NB: Membership status can return to 0 from 1 if a country withdraws from an agreement (and they may, subsequently, become a member again).
  • For membership actions by Action, Country, Year, Month, Day click on action tab above.
  • For year-by-year status data (countries as rows, years as columns), click on wide tab above.
  • For year-by-year status data in Stata format (3 columns: Country, Year, Membership Status), click on long tab above.