Action 3249

Membership Information for: Comprehensive Nuclear Test Ban Treaty

Signed: 1996-09-10; Entered into force: 2599-01-01; Terminated:
Source for membership data: http://www.ctbto.org/the-treaty/status-of-signature-and-ratification/
Date of last download from source: 2022-01-01
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 Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization website. For inaccuracies, please notify the Project Director.
Agreement Action Country Year Month Day Edit link
Signature Afghanistan 2003 9 24
Signature Albania 1996 9 27
Signature Algeria 1996 10 15
Signature Andorra 1996 9 24
Signature Angola 1996 9 27
Signature Antigua and Barbuda 1997 4 16
Signature Argentina 1996 9 24
Signature Armenia 1996 10 1
Signature Australia 1996 9 24
Signature Austria 1996 9 24
Signature Azerbaijan 1997 7 28
Signature Bahamas 2005 2 4
Signature Bahrain 1996 9 24
Signature Bangladesh 1996 10 24
Signature Barbados 2008 1 14
Signature Belarus 1996 9 24
Signature Belgium 1996 9 24
Signature Belize 2001 11 14
Signature Benin 1996 9 27
Signature Bolivia 1996 9 24
Signature Bosnia and Herzegovina 1996 9 24
Signature Botswana 2002 9 16
Signature Brazil 1996 9 24
Signature Brunei Darussalam 1997 1 22
Signature Bulgaria 1996 9 24
Signature Burkina Faso 1996 9 27
Signature Burundi 1996 9 24
Signature Cambodia 1996 9 26
Signature Cameroon 2001 11 16
Signature Canada 1996 9 24
Signature Cape Verde 1996 10 1
Signature Central African Republic 2001 12 19
Signature Chad 1996 10 8
Signature Chile 1996 9 24
Signature China 1996 9 24
Signature Colombia 1996 9 24
Signature Comoros 1996 12 12
Signature Congo, Democratic Republic of 1996 10 4
Signature Congo, Republic of the 1997 2 11
Signature Cook Islands 1997 12 5
Signature Costa Rica 1996 9 24
Signature Cote d'Ivoire 1996 9 25
Signature Croatia 1996 9 24
Signature Cuba 2021 2 4
Signature Cyprus 1996 9 24
Signature Czechia 1996 11 12
Signature Denmark 1996 9 24
Signature Djibouti 1996 10 21
Signature Dominica 2022 5 25
Signature Dominican Republic 1996 10 3
Signature Ecuador 1996 9 24
Signature Egypt 1996 10 14
Signature El Salvador 1996 9 24
Signature Equatorial Guinea 1996 10 9
Signature Eritrea 2003 11 11
Signature Estonia 1996 11 20
Signature Eswatini 1996 9 24
Signature Ethiopia 1996 9 25
Signature Fiji 1996 9 24
Signature Finland 1996 9 24
Signature France 1996 9 24
Signature Gabon 1996 10 7
Signature Gambia 2003 4 9
Signature Georgia 1996 9 24
Signature Germany 1996 9 24
Signature Ghana 1996 10 3
Signature Greece 1996 9 24
Signature Grenada 1996 10 10
Signature Guatemala 1999 9 20
Signature Guinea 1996 10 3
Signature Guinea-Bissau 1997 4 11
Signature Guyana 2000 9 7
Signature Haiti 1996 9 24
Signature Holy See 1996 9 24
Signature Honduras 1996 9 25
Signature Hungary 1996 9 25
Signature Iceland 1996 9 24
Signature Indonesia 1996 9 24
Signature Iran 1996 9 24
Signature Iraq 2008 8 19
Signature Ireland 1996 9 24
Signature Israel 1996 9 25
Signature Italy 1996 9 24
Signature Jamaica 1996 11 11
Signature Japan 1996 9 24
Signature Jordan 1996 9 26
Signature Kazakhstan 1996 9 30
Signature Kenya 1996 11 14
Signature Kiribati 2000 9 7
Signature Korea, Republic of 1996 9 24
Signature Kuwait 1996 9 24
Signature Kyrgyzstan 1996 10 8
Signature Laos 1997 7 30
Signature Latvia 1996 9 24
Signature Lebanon 2005 9 16
Signature Lesotho 1996 9 30
Signature Liberia 1996 10 1
Signature Libya 2001 11 13
Signature Liechtenstein 1996 9 27
Signature Lithuania 1996 10 7

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).