Action 8507

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Membership Information for: Treaty on the Prohibition of Nuclear Weapons

Signed: 2017-07-07; Entered into force: 2021-01-22; Terminated:
Source for membership data: https://treaties.unoda.org/t/tpnw
Date of last download from source: 2022-12-05
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 United Nations website. For inaccuracies, please notify the Project Director.
Agreement Action Country Year Month Day Edit link
Signature Algeria 2017 9 20
Signature Angola 2018 9 27
Signature Antigua and Barbuda 2018 9 26
Signature Austria 2017 9 20
Signature Bangladesh 2017 9 20
Signature Barbados 2022 9 22
Signature Belize 2020 2 6
Signature Benin 2018 9 26
Signature Bolivia 2018 4 16
Signature Botswana 2019 9 26
Signature Brazil 2017 9 20
Signature Brunei Darussalam 2018 9 26
Signature Burkina Faso 2022 9 22
Signature Cambodia 2019 1 9
Signature Cape Verde 2017 9 20
Signature Central African Republic 2017 9 20
Signature Chile 2017 9 20
Signature Colombia 2018 8 3
Signature Comoros 2017 9 20
Signature Congo, Democratic Republic of 2017 9 20
Signature Congo, Republic of the 2017 9 20
Signature Costa Rica 2017 9 20
Signature Cote d'Ivoire 2017 9 20
Signature Cuba 2017 9 20
Signature Dominica 2019 9 26
Signature Dominican Republic 2018 6 7
Signature Ecuador 2017 9 20
Signature El Salvador 2017 9 20
Signature Equatorial Guinea 2022 9 22
Signature Fiji 2017 9 20
Signature Gambia 2017 9 20
Signature Ghana 2017 9 20
Signature Grenada 2019 9 26
Signature Guatemala 2017 9 20
Signature Guinea-Bissau 2018 9 26
Signature Guyana 2017 9 20
Signature Haiti 2022 9 22
Signature Holy See 2017 9 20
Signature Honduras 2017 9 20
Signature Indonesia 2017 9 20
Signature Ireland 2017 9 20
Signature Jamaica 2017 12 8
Signature Kazakhstan 2018 3 2
Signature Kiribati 2017 9 20
Signature Laos 2017 9 21
Signature Lesotho 2019 9 26
Signature Libya 2017 9 20
Signature Liechtenstein 2017 9 20
Signature Madagascar 2017 9 20
Signature Malawi 2017 9 20
Signature Malaysia 2017 9 20
Signature Maldives 2019 9 26
Signature Malta 2020 8 25
Signature Mexico 2017 9 20
Signature Mozambique 2020 8 18
Signature Myanmar 2018 9 26
Signature Namibia 2017 12 8
Signature Nauru 2019 11 22
Signature Nepal 2017 9 20
Signature New Zealand 2017 9 20
Signature Nicaragua 2017 9 22
Signature Niger 2020 12 9
Signature Nigeria 2017 9 20
Signature Palau 2017 9 20
Signature Palestine, Occupied Territories 2017 9 20
Signature Panama 2017 9 20
Signature Paraguay 2017 9 20
Signature Peru 2017 9 20
Signature Philippines 2017 9 20
Signature Saint Kitts and Nevis 2019 9 26
Signature Saint Lucia 2018 9 27
Signature Saint Vincent and the Grenadines 2017 12 8
Signature Samoa 2017 9 20
Signature San Marino 2017 9 20
Signature Sao Tome and Principe 2017 9 20
Signature Seychelles 2018 9 26
Signature Sierra Leone 2022 9 22
Signature South Africa 2017 9 20
Signature Sudan 2020 7 22
Signature Tanzania 2019 9 26
Signature Thailand 2017 9 20
Signature Timor-Leste 2018 9 26
Signature Togo 2017 9 20
Signature Trinidad and Tobago 2019 9 26
Signature Tuvalu 2017 9 20
Signature Uruguay 2017 9 20
Signature Vanuatu 2017 9 20
Signature Venezuela 2017 9 20
Signature Viet Nam 2017 9 22
Signature Zambia 2019 9 26
Signature Zimbabwe 2020 12 4
Ratification, Accession, Succession, or Similar Antigua and Barbuda 2019 11 25
Ratification, Accession, Succession, or Similar Austria 2018 5 8
Ratification, Accession, Succession, or Similar Bangladesh 2019 9 26
Ratification, Accession, Succession, or Similar Belize 2020 5 19
Ratification, Accession, Succession, or Similar Benin 2020 12 11
Ratification, Accession, Succession, or Similar Bolivia 2019 8 6
Ratification, Accession, Succession, or Similar Botswana 2020 7 15
Ratification, Accession, Succession, or Similar Cambodia 2021 1 22
Ratification, Accession, Succession, or Similar Cape Verde 2022 6 20

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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).