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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
Ratification, Accession, Succession, or Similar Barbados 2008 1 14
Ratification, Accession, Succession, or Similar Belarus 2000 9 13
Ratification, Accession, Succession, or Similar Belgium 1999 6 29
Ratification, Accession, Succession, or Similar Belize 2004 3 26
Ratification, Accession, Succession, or Similar Benin 2001 3 6
Ratification, Accession, Succession, or Similar Bolivia 1999 10 4
Ratification, Accession, Succession, or Similar Bosnia and Herzegovina 2006 10 26
Ratification, Accession, Succession, or Similar Botswana 2002 10 28
Ratification, Accession, Succession, or Similar Brazil 1998 7 24
Ratification, Accession, Succession, or Similar Brunei Darussalam 2013 1 10
Ratification, Accession, Succession, or Similar Bulgaria 1999 9 29
Ratification, Accession, Succession, or Similar Burkina Faso 2002 4 17
Ratification, Accession, Succession, or Similar Burundi 2008 9 24
Ratification, Accession, Succession, or Similar Cambodia 2000 11 10
Ratification, Accession, Succession, or Similar Cameroon 2006 2 6
Ratification, Accession, Succession, or Similar Canada 1998 12 18
Ratification, Accession, Succession, or Similar Cape Verde 2006 3 1
Ratification, Accession, Succession, or Similar Central African Republic 2010 5 26
Ratification, Accession, Succession, or Similar Chad 2013 2 8
Ratification, Accession, Succession, or Similar Chile 2000 7 12
Ratification, Accession, Succession, or Similar Colombia 2008 1 29
Ratification, Accession, Succession, or Similar Comoros 2021 2 19
Ratification, Accession, Succession, or Similar Congo, Democratic Republic of 2004 9 28
Ratification, Accession, Succession, or Similar Congo, Republic of the 2014 9 2
Ratification, Accession, Succession, or Similar Cook Islands 2005 9 6
Ratification, Accession, Succession, or Similar Costa Rica 2001 9 25
Ratification, Accession, Succession, or Similar Cote d'Ivoire 2003 3 11
Ratification, Accession, Succession, or Similar Croatia 2001 3 2
Ratification, Accession, Succession, or Similar Cuba 2021 2 4
Ratification, Accession, Succession, or Similar Cyprus 2003 7 18
Ratification, Accession, Succession, or Similar Czechia 1997 9 11
Ratification, Accession, Succession, or Similar Denmark 1998 12 21
Ratification, Accession, Succession, or Similar Djibouti 2005 7 15
Ratification, Accession, Succession, or Similar Dominica 2022 6 30
Ratification, Accession, Succession, or Similar Dominican Republic 2007 9 4
Ratification, Accession, Succession, or Similar Ecuador 2001 11 12
Ratification, Accession, Succession, or Similar El Salvador 1998 9 11
Ratification, Accession, Succession, or Similar Equatorial Guinea 2022 9 21
Ratification, Accession, Succession, or Similar Eritrea 2003 11 11
Ratification, Accession, Succession, or Similar Estonia 1999 8 13
Ratification, Accession, Succession, or Similar Eswatini 2016 9 21
Ratification, Accession, Succession, or Similar Ethiopia 2006 8 8
Ratification, Accession, Succession, or Similar Fiji 1996 10 10
Ratification, Accession, Succession, or Similar Finland 1999 1 15
Ratification, Accession, Succession, or Similar France 1998 4 6
Ratification, Accession, Succession, or Similar Gabon 2000 9 20
Ratification, Accession, Succession, or Similar Gambia 2022 3 24
Ratification, Accession, Succession, or Similar Georgia 2002 9 27
Ratification, Accession, Succession, or Similar Germany 1998 8 20
Ratification, Accession, Succession, or Similar Ghana 2011 6 14
Ratification, Accession, Succession, or Similar Greece 1999 4 21
Ratification, Accession, Succession, or Similar Grenada 1998 8 19
Ratification, Accession, Succession, or Similar Guatemala 2012 1 12
Ratification, Accession, Succession, or Similar Guinea 2011 9 22
Ratification, Accession, Succession, or Similar Guinea-Bissau 2013 9 24
Ratification, Accession, Succession, or Similar Guyana 2001 3 7
Ratification, Accession, Succession, or Similar Haiti 2005 12 1
Ratification, Accession, Succession, or Similar Holy See 2001 7 18
Ratification, Accession, Succession, or Similar Honduras 2003 10 30
Ratification, Accession, Succession, or Similar Hungary 1999 7 13
Ratification, Accession, Succession, or Similar Iceland 2000 6 26
Ratification, Accession, Succession, or Similar Indonesia 2012 2 6
Ratification, Accession, Succession, or Similar Iraq 2013 9 26
Ratification, Accession, Succession, or Similar Ireland 1999 7 15
Ratification, Accession, Succession, or Similar Italy 1999 2 1
Ratification, Accession, Succession, or Similar Jamaica 2001 11 13
Ratification, Accession, Succession, or Similar Japan 1997 7 8
Ratification, Accession, Succession, or Similar Jordan 1998 8 25
Ratification, Accession, Succession, or Similar Kazakhstan 2002 5 14
Ratification, Accession, Succession, or Similar Kenya 2000 11 30
Ratification, Accession, Succession, or Similar Kiribati 2000 9 7
Ratification, Accession, Succession, or Similar Korea, Republic of 1999 9 24
Ratification, Accession, Succession, or Similar Kuwait 2003 5 6
Ratification, Accession, Succession, or Similar Kyrgyzstan 2003 10 2
Ratification, Accession, Succession, or Similar Laos 2000 10 5
Ratification, Accession, Succession, or Similar Latvia 2001 11 20
Ratification, Accession, Succession, or Similar Lebanon 2008 11 21
Ratification, Accession, Succession, or Similar Lesotho 1999 9 14
Ratification, Accession, Succession, or Similar Liberia 2009 8 17
Ratification, Accession, Succession, or Similar Libya 2004 1 6
Ratification, Accession, Succession, or Similar Liechtenstein 2004 9 21
Ratification, Accession, Succession, or Similar Lithuania 2000 2 7
Ratification, Accession, Succession, or Similar Luxembourg 1999 5 26
Ratification, Accession, Succession, or Similar Madagascar 2005 9 15
Ratification, Accession, Succession, or Similar Malawi 2008 11 21
Ratification, Accession, Succession, or Similar Malaysia 2008 1 17
Ratification, Accession, Succession, or Similar Maldives 2000 9 7
Ratification, Accession, Succession, or Similar Mali 1999 8 4
Ratification, Accession, Succession, or Similar Malta 2001 7 23
Ratification, Accession, Succession, or Similar Marshall Islands 2009 10 28
Ratification, Accession, Succession, or Similar Mauritania 2003 4 30
Ratification, Accession, Succession, or Similar Mexico 1999 10 5
Ratification, Accession, Succession, or Similar Micronesia 1997 7 25
Ratification, Accession, Succession, or Similar Moldova 2007 1 16
Ratification, Accession, Succession, or Similar Monaco 1998 12 18
Ratification, Accession, Succession, or Similar Mongolia 1997 8 8
Ratification, Accession, Succession, or Similar Montenegro 2006 10 23
Ratification, Accession, Succession, or Similar Morocco 2000 4 17
Ratification, Accession, Succession, or Similar Mozambique 2008 11 4
Ratification, Accession, Succession, or Similar Myanmar 2016 9 21

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).