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Membership Information for: Treaty Banning Nuclear Weapon Tests In The Atmosphere, In Outer Space And Under Water

Signed: 1963-08-05; Entered into force: 1963-10-10; Terminated:
Source for membership data: https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/532671…
Date of last download from source: 2016-10-15
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 Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization website. For inaccuracies, please notify the Project Director.
Country19631964196519661967196819691970197119721973197419751976197719781979198019811982198319841985198619871988198919901991199219931994199519961997199819992000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024
Ratifiers00000000000000000000000000000000000000000000000000000000000000
Members (agreement in force)226789939598101101102103103103103104104105106107107107107107110111111113113114115116119121121121121121121121121121121121121122122122122124124124124124124124124124124124124124124124
Afghanistan02222222222222222222222222222222222222222222222222222222222222
Algeria00000000000000000000000000000000000000000000000000000000000000
Antigua and Barbuda00000000000000000000000002222222222222222222222222222222222222
Argentina00000000000000000000000222222222222222222222222222222222222222
Armenia00000000000000000000000000000002222222222222222222222222222222
Australia22222222222222222222222222222222222222222222222222222222222222
Austria02222222222222222222222222222222222222222222222222222222222222
Bahamas00000000000002222222222222222222222222222222222222222222222222
Bangladesh00000000000000000000002222222222222222222222222222222222222222
Belgium00022222222222222222222222222222222222222222222222222222222222
Benin00222222222222222222222222222222222222222222222222222222222222
Bhutan00000000000000022222222222222222222222222222222222222222222222
Bolivia00222222222222222222222222222222222222222222222222222222222222
Bosnia and Herzegovina00000000000000000000000000000002222222222222222222222222222222
Botswana00000222222222222222222222222222222222222222222222222222222222
Brazil00222222222222222222222222222222222222222222222222222222222222
Bulgaria22222222222222222222222222222222222222222222222222222222222222
Burkina Faso00000000000000000000000000000000000000000000000000000000000000
Burundi00000000000000000000000000000000000000000000000000000000000000
Cameroon00000000000000000000000000000000000000000000000000000000000000
Canada02222222222222222222222222222222222222222222222222222222222222
Central African Republic02222222222222222222222222222222222222222222222222222222222222
Chad00222222222222222222222222222222222222222222222222222222222222
Chile00222222222222222222222222222222222222222222222222222222222222
Colombia00000000000000000000002222222222222222222222222222222222222222
Congo, Democratic Republic of00222222222222222222222222222222222222222222222222222222222222
Costa Rica00002222222222222222222222222222222222222222222222222222222222
Cote d'Ivoire00222222222222222222222222222222222222222222222222222222222222
Croatia00000000000000000000000000000022222222222222222222222222222222
Curacao00000000000000000000000000000000000000000000000222222222222222
Cyprus00222222222222222222222222222222222222222222222222222222222222
Czechia22222222222222222222222222222222222222222222222222222222222222
Denmark02222222222222222222222222222222222222222222222222222222222222
Dominican Republic02222222222222222222222222222222222222222222222222222222222222
Ecuador02222222222222222222222222222222222222222222222222222222222222
Egypt02222222222222222222222222222222222222222222222222222222222222
El Salvador02222222222222222222222222222222222222222222222222222222222222
Eswatini00000022222222222222222222222222222222222222222222222222222222
Ethiopia00000000000000000000000000000000000000000000000000000000000000
Fiji00000000022222222222222222222222222222222222222222222222222222
Finland02222222222222222222222222222222222222222222222222222222222222
Gabon02222222222222222222222222222222222222222222222222222222222222
Gambia00222222222222222222222222222222222222222222222222222222222222
Germany02222222222222222222222222222222222222222222222222222222222222
Ghana22222222222222222222222222222222222222222222222222222222222222
Greece22222222222222222222222222222222222222222222222222222222222222
Guatemala02222222222222222222222222222222222222222222222222222222222222
Haiti00000000000000000000000000000000000000000000000000000000000000
Honduras02222222222222222222222222222222222222222222222222222222222222
Hungary22222222222222222222222222222222222222222222222222222222222222
Iceland02222222222222222222222222222222222222222222222222222222222222
India22222222222222222222222222222222222222222222222222222222222222
Indonesia02222222222222222222222222222222222222222222222222222222222222
Iran02222222222222222222222222222222222222222222222222222222222222
Iraq02222222222222222222222222222222222222222222222222222222222222
Ireland22222222222222222222222222222222222222222222222222222222222222
Israel02222222222222222222222222222222222222222222222222222222222222
Italy02222222222222222222222222222222222222222222222222222222222222
Jamaica00000000000000000000000000002222222222222222222222222222222222
Japan02222222222222222222222222222222222222222222222222222222222222
Jordan02222222222222222222222222222222222222222222222222222222222222
Kenya00222222222222222222222222222222222222222222222222222222222222
Korea, Republic of02222222222222222222222222222222222222222222222222222222222222
Kuwait00222222222222222222222222222222222222222222222222222222222222
Laos00222222222222222222222222222222222222222222222222222222222222
Lebanon00222222222222222222222222222222222222222222222222222222222222
Liberia02222222222222222222222222222222222222222222222222222222222222
Libya00000222222222222222222222222222222222222222222222222222222222
Luxembourg00222222222222222222222222222222222222222222222222222222222222
Madagascar00222222222222222222222222222222222222222222222222222222222222
Malawi02222222222222222222222222222222222222222222222222222222222222
Malaysia02222222222222222222222222222222222222222222222222222222222222
Mali00000000000000000000000000000000000000000000000000000000000000
Malta02222222222222222222222222222222222222222222222222222222222222
Mauritania02222222222222222222222222222222222222222222222222222222222222
Mauritius00000022222222222222222222222222222222222222222222222222222222
Mexico22222222222222222222222222222222222222222222222222222222222222
Mongolia22222222222222222222222222222222222222222222222222222222222222
Montenegro00000000000000000000000000000000000000000002222222222222222222
Morocco00022222222222222222222222222222222222222222222222222222222222
Myanmar22222222222222222222222222222222222222222222222222222222222222
Nepal02222222222222222222222222222222222222222222222222222222222222
Netherlands02222222222222222222222222222222222222222222222222222222222222
New Zealand22222222222222222222222222222222222222222222222222222222222222
Nicaragua00222222222222222222222222222222222222222222222222222222222222
Niger02222222222222222222222222222222222222222222222222222222222222
Nigeria00002222222222222222222222222222222222222222222222222222222222
Norway22222222222222222222222222222222222222222222222222222222222222
Pakistan00000000000000000000000002222222222222222222222222222222222222
Panama00022222222222222222222222222222222222222222222222222222222222
Papua New Guinea00000000000000000222222222222222222222222222222222222222222222
Paraguay00000000000000000000000000000000000000000000000000000000000000
Peru02222222222222222222222222222222222222222222222222222222222222
Philippines00222222222222222222222222222222222222222222222222222222222222
Poland22222222222222222222222222222222222222222222222222222222222222
Portugal00000000000000000000000000000000000000000000000000000000000000
Romania22222222222222222222222222222222222222222222222222222222222222
Russian Federation22222222222222222222222222222222222222222222222222222222222222
Rwanda22222222222222222222222222222222222222222222222222222222222222
Saint Martin00000000000000000000000000000000000000000000000222222222222222
Samoa00222222222222222222222222222222222222222222222222222222222222
San Marino02222222222222222222222222222222222222222222222222222222222222
Senegal02222222222222222222222222222222222222222222222222222222222222
Serbia02222222222222222222222222222222222222222222222222222222222222
Seychelles00000000000000000000002222222222222222222222222222222222222222
Sierra Leone02222222222222222222222222222222222222222222222222222222222222
Singapore00000222222222222222222222222222222222222222222222222222222222
Slovakia00000000000000000000000000000022222222222222222222222222222222
Slovenia00000000000000000000000000000222222222222222222222222222222222
Somalia00000000000000000000000000000000000000000000000000000000000000
South Africa22222222222222222222222222222222222222222222222222222222222222
Spain02222222222222222222222222222222222222222222222222222222222222
Sri Lanka02222222222222222222222222222222222222222222222222222222222222
Sudan00022222222222222222222222222222222222222222222222222222222222
Suriname00000000000000000000000000000022222222222222222222222222222222
Sweden22222222222222222222222222222222222222222222222222222222222222
Switzerland02222222222222222222222222222222222222222222222222222222222222
Syria02222222222222222222222222222222222222222222222222222222222222
Taiwan02222222222222222222222222222222222222222222222222222222222222
Tanzania02222222222222222222222222222222222222222222222222222222222222
Thailand22222222222222222222222222222222222222222222222222222222222222
Togo02222222222222222222222222222222222222222222222222222222222222
Tonga00000000222222222222222222222222222222222222222222222222222222
Trinidad and Tobago02222222222222222222222222222222222222222222222222222222222222
Tunisia00222222222222222222222222222222222222222222222222222222222222
Türkiye00222222222222222222222222222222222222222222222222222222222222
Uganda02222222222222222222222222222222222222222222222222222222222222
United Kingdom22222222222222222222222222222222222222222222222222222222222222
United States22222222222222222222222222222222222222222222222222222222222222
Uruguay00000022222222222222222222222222222222222222222222222222222222
Venezuela00222222222222222222222222222222222222222222222222222222222222
Vietnam, South00000000000000000000000000000000000000000000000000000000000000
Yemen00000000000000000000000000022222222222222222222222222222222222
Yemen, Arab Republic00000000000000002222222222222222222222222222222222222222222222
Zambia00222222222222222222222222222222222222222222222222222222222222
Members (agreement in force)226789939598101101102103103103103104104105106107107107107107110111111113113114115116119121121121121121121121121121121121121122122122122124124124124124124124124124124124124124124124
Ratifiers00000000000000000000000000000000000000000000000000000000000000

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).