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.
Country20172018201920202021
Ratifiers31934500
Members (agreement in force)000050
Algeria00000
Angola00000
Antigua and Barbuda00112
Austria01112
Bangladesh00112
Belize00012
Benin00000
Bolivia00112
Botswana00012
Brazil00000
Brunei Darussalam00000
Cambodia00000
Cape Verde00000
Central African Republic00000
Chile00000
Colombia00000
Comoros00000
Congo, Democratic Republic of00000
Congo, Republic of the00000
Cook Islands01112
Costa Rica01112
Cote d'Ivoire00000
Cuba01112
Dominica00112
Dominican Republic00000
Ecuador00112
El Salvador00112
Fiji00012
Gambia01112
Ghana00000
Grenada00000
Guatemala00000
Guinea-Bissau00000
Guyana11112
Holy See11112
Honduras00012
Indonesia00000
Ireland00012
Jamaica00012
Kazakhstan00112
Kiribati00112
Laos00112
Lesotho00012
Libya00000
Liechtenstein00000
Madagascar00000
Malawi00000
Malaysia00012
Maldives00112
Malta00012
Mexico01112
Mozambique00000
Myanmar00000
Namibia00012
Nauru00012
Nepal00000
New Zealand01112
Nicaragua01112
Nigeria00012
Niue00012
Palau01112
Palestine, Occupied Territories01112
Panama00112
Paraguay00012
Peru00000
Philippines00000
Saint Kitts and Nevis00012
Saint Lucia00112
Saint Vincent and the Grenadines00112
Samoa01112
San Marino01112
Sao Tome and Principe00000
Seychelles00000
South Africa00112
Sudan00000
Tanzania00000
Thailand11112
Timor-Leste00000
Togo00000
Trinidad and Tobago00112
Tuvalu00012
Uruguay01112
Vanuatu01112
Venezuela01112
Viet Nam01112
Zambia00000
Members (agreement in force)000050
Ratifiers31934500

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).