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Membership Information for: Protocol To The Comprehensive Nuclear Test Ban Treaty

Signed: 1996-09-24; 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 Madagascar 1996 10 9
Signature Malawi 1996 10 9
Signature Malaysia 1998 7 23
Signature Maldives 1997 10 1
Signature Mali 1997 2 18
Signature Malta 1996 9 24
Signature Marshall Islands 1996 9 24
Signature Mauritania 1996 9 24
Signature Mexico 1996 9 24
Signature Micronesia 1996 9 24
Signature Moldova 1997 9 24
Signature Monaco 1996 10 1
Signature Mongolia 1996 10 1
Signature Montenegro 2006 10 23
Signature Morocco 1996 9 24
Signature Mozambique 1996 9 26
Signature Myanmar 1996 11 25
Signature Namibia 1996 9 24
Signature Nauru 2000 9 8
Signature Nepal 1996 10 8
Signature Netherlands 1996 9 24
Signature New Zealand 1996 9 27
Signature Nicaragua 1996 9 24
Signature Niger 1996 10 3
Signature Nigeria 2000 9 8
Signature Niue 2012 4 9
Signature North Macedonia 1998 10 29
Signature Norway 1996 9 24
Signature Oman 1999 9 23
Signature Palau 2003 8 12
Signature Panama 1996 9 24
Signature Papua New Guinea 1996 9 25
Signature Paraguay 1996 9 25
Signature Peru 1996 9 25
Signature Philippines 1996 9 24
Signature Poland 1996 9 24
Signature Portugal 1996 9 24
Signature Qatar 1996 9 24
Signature Romania 1996 9 24
Signature Russian Federation 1996 9 24
Signature Rwanda 2004 11 30
Signature Saint Kitts and Nevis 2004 3 23
Signature Saint Lucia 1996 10 4
Signature Saint Vincent and the Grenadines 2009 7 2
Signature Samoa 1996 10 9
Signature San Marino 1996 10 7
Signature Sao Tome and Principe 1996 9 26
Signature Senegal 1996 9 26
Signature Serbia 2001 6 8
Signature Seychelles 1996 9 24
Signature Sierra Leone 2000 9 8
Signature Singapore 1999 1 14
Signature Slovakia 1996 9 30
Signature Slovenia 1996 9 24
Signature Solomon Islands 1996 10 3
Signature South Africa 1996 9 24
Signature Spain 1996 9 24
Signature Sri Lanka 1996 10 24
Signature Sudan 2004 6 10
Signature Suriname 1997 1 14
Signature Sweden 1996 9 24
Signature Switzerland 1996 9 24
Signature Tajikistan 1996 10 7
Signature Tanzania 2004 9 30
Signature Thailand 1996 11 12
Signature Timor-Leste 2008 9 26
Signature Togo 1996 10 2
Signature Trinidad and Tobago 2009 10 8
Signature Tunisia 1996 10 16
Signature Türkiye 1996 9 24
Signature Turkmenistan 1996 9 24
Signature Tuvalu 2018 9 25
Signature Uganda 1996 11 7
Signature Ukraine 1996 9 27
Signature United Arab Emirates 1996 9 25
Signature United Kingdom 1996 9 24
Signature United States 1996 9 24
Signature Uruguay 1996 9 24
Signature Uzbekistan 1996 10 3
Signature Vanuatu 1996 9 24
Signature Venezuela 1996 10 3
Signature Viet Nam 1996 9 24
Signature Yemen 1996 9 30
Signature Zambia 1996 12 3
Signature Zimbabwe 1999 10 13
Ratification, Accession, Succession, or Similar Afghanistan 2003 9 24
Ratification, Accession, Succession, or Similar Albania 2003 4 23
Ratification, Accession, Succession, or Similar Algeria 2003 7 11
Ratification, Accession, Succession, or Similar Andorra 2006 7 12
Ratification, Accession, Succession, or Similar Angola 2015 3 20
Ratification, Accession, Succession, or Similar Antigua and Barbuda 2006 1 11
Ratification, Accession, Succession, or Similar Argentina 1998 12 4
Ratification, Accession, Succession, or Similar Armenia 2006 7 12
Ratification, Accession, Succession, or Similar Australia 1998 7 9
Ratification, Accession, Succession, or Similar Austria 1998 3 13
Ratification, Accession, Succession, or Similar Azerbaijan 1999 2 2
Ratification, Accession, Succession, or Similar Bahamas 2007 11 30
Ratification, Accession, Succession, or Similar Bahrain 2004 4 12
Ratification, Accession, Succession, or Similar Bangladesh 2000 3 8
Ratification, Accession, Succession, or Similar Barbados 2008 1 14

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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).