Wide 8507

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://www.un.org/disarmament/list-of-countries-which-signed-tpnw-on-opening-da…
Last downloaded: 2017-11-10; Last known update: 2017-11-10
The following is data currently in the IEA database for agreement actions. Agreement actions (signature, ratification, entry into force) can change frequently. The IEA Database Project updates this data approximately once a year and tries to ensure it is current and accurate. You are encouraged to visit the United Nations website to look for the most accurate and up-to-date membership information. If you have questions about this data or notice inaccuracies, please contact the Project Director.
Country2017201820192020
Ratifiers3193450
Members (agreement in force)0000
Algeria0000
Angola0000
Antigua and Barbuda0011
Austria0111
Bangladesh0011
Belize0001
Benin0000
Bolivia0011
Botswana0001
Brazil0000
Brunei Darussalam0000
Cambodia0000
Cape Verde0000
Central African Republic0000
Chile0000
Colombia0000
Comoros0000
Congo, Democratic Republic of0000
Congo, Republic of the0000
Cook Islands0111
Costa Rica0111
Cote d'Ivoire0000
Cuba0111
Dominica0011
Dominican Republic0000
Ecuador0011
El Salvador0011
Fiji0001
Gambia0111
Ghana0000
Grenada0000
Guatemala0000
Guinea-Bissau0000
Guyana1111
Holy See1111
Honduras0001
Indonesia0000
Ireland0001
Jamaica0001
Kazakhstan0011
Kiribati0011
Laos0011
Lesotho0001
Libya0000
Liechtenstein0000
Madagascar0000
Malawi0000
Malaysia0001
Maldives0011
Malta0001
Mexico0111
Mozambique0000
Myanmar0000
Namibia0001
Nauru0001
Nepal0000
New Zealand0111
Nicaragua0111
Nigeria0001
Niue0001
Palau0111
Palestine, Occupied Territories0111
Panama0011
Paraguay0001
Peru0000
Philippines0000
Saint Kitts and Nevis0001
Saint Lucia0011
Saint Vincent and the Grenadines0011
Samoa0111
San Marino0111
Sao Tome and Principe0000
Seychelles0000
South Africa0011
Sudan0000
Tanzania0000
Thailand1111
Timor-Leste0000
Togo0000
Trinidad and Tobago0011
Tuvalu0001
Uruguay0111
Vanuatu0111
Venezuela0111
Viet Nam0111
Zambia0000
Members (agreement in force)0000
Ratifiers3193450

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).