Long 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.
CountryYearMembership Status
Algeria20170
Algeria20180
Algeria20190
Algeria20200
Algeria20210
Algeria20220
Angola20180
Angola20190
Angola20200
Angola20210
Angola20220
Antigua and Barbuda20180
Antigua and Barbuda20191
Antigua and Barbuda20201
Antigua and Barbuda20212
Antigua and Barbuda20222
Austria20170
Austria20181
Austria20191
Austria20201
Austria20212
Austria20222
Bangladesh20170
Bangladesh20180
Bangladesh20191
Bangladesh20201
Bangladesh20212
Bangladesh20222
Belize20201
Belize20212
Belize20222
Benin20180
Benin20190
Benin20200
Benin20210
Benin20220
Bolivia20180
Bolivia20191
Bolivia20201
Bolivia20212
Bolivia20222
Botswana20190
Botswana20201
Botswana20212
Botswana20222
Brazil20170
Brazil20180
Brazil20190
Brazil20200
Brazil20210
Brazil20220
Brunei Darussalam20180
Brunei Darussalam20190
Brunei Darussalam20200
Brunei Darussalam20210
Brunei Darussalam20220
Cambodia20190
Cambodia20200
Cambodia20210
Cambodia20220
Cape Verde20170
Cape Verde20180
Cape Verde20190
Cape Verde20200
Cape Verde20210
Cape Verde20220
Central African Republic20170
Central African Republic20180
Central African Republic20190
Central African Republic20200
Central African Republic20210
Central African Republic20220
Chile20170
Chile20180
Chile20190
Chile20200
Chile20210
Chile20220
Colombia20180
Colombia20190
Colombia20200
Colombia20210
Colombia20220
Comoros20170
Comoros20180
Comoros20190
Comoros20200
Comoros20210
Comoros20220
Congo, Democratic Republic of20170
Congo, Democratic Republic of20180
Congo, Democratic Republic of20190
Congo, Democratic Republic of20200
Congo, Democratic Republic of20210
Congo, Democratic Republic of20220
Congo, Republic of the20170
Congo, Republic of the20180
Congo, Republic of the20190
Congo, Republic of the20200
Congo, Republic of the20210
Congo, Republic of the20220
Cook Islands20181
Cook Islands20191
Cook Islands20201
Cook Islands20212
Cook Islands20222
Costa Rica20170
Costa Rica20181
Costa Rica20191
Costa Rica20201
Costa Rica20212
Costa Rica20222
Cote d'Ivoire20170
Cote d'Ivoire20180
Cote d'Ivoire20190
Cote d'Ivoire20200
Cote d'Ivoire20210
Cote d'Ivoire20220
Cuba20170
Cuba20181
Cuba20191
Cuba20201
Cuba20212
Cuba20222
Dominica20191
Dominica20201
Dominica20212
Dominica20222
Dominican Republic20180
Dominican Republic20190
Dominican Republic20200
Dominican Republic20210
Dominican Republic20220
Ecuador20170
Ecuador20180
Ecuador20191
Ecuador20201
Ecuador20212
Ecuador20222
El Salvador20170
El Salvador20180
El Salvador20191
El Salvador20201
El Salvador20212
El Salvador20222
Fiji20170
Fiji20180
Fiji20190
Fiji20201
Fiji20212
Fiji20222
Gambia20170
Gambia20181
Gambia20191
Gambia20201
Gambia20212
Gambia20222
Ghana20170
Ghana20180
Ghana20190
Ghana20200
Ghana20210
Ghana20220
Grenada20190
Grenada20200
Grenada20210
Grenada20220
Guatemala20170
Guatemala20180
Guatemala20190
Guatemala20200
Guatemala20210
Guatemala20220
Guinea-Bissau20180
Guinea-Bissau20190
Guinea-Bissau20200
Guinea-Bissau20210
Guinea-Bissau20220
Guyana20171
Guyana20181
Guyana20191
Guyana20201
Guyana20212
Guyana20222
Holy See20171
Holy See20181
Holy See20191
Holy See20201
Holy See20212
Holy See20222
Honduras20170
Honduras20180
Honduras20190
Honduras20201
Honduras20212
Honduras20222
Indonesia20170
Indonesia20180
Indonesia20190
Indonesia20200
Indonesia20210
Indonesia20220
Ireland20170
Ireland20180
Ireland20190
Ireland20201
Ireland20212
Ireland20222
Jamaica20170
Jamaica20180
Jamaica20190
Jamaica20201
Jamaica20212
Jamaica20222
Kazakhstan20180
Kazakhstan20191
Kazakhstan20201
Kazakhstan20212
Kazakhstan20222
Kiribati20170
Kiribati20180
Kiribati20191
Kiribati20201
Kiribati20212
Kiribati20222
Laos20170
Laos20180
Laos20191
Laos20201
Laos20212
Laos20222
Lesotho20190
Lesotho20201
Lesotho20212
Lesotho20222
Libya20170
Libya20180
Libya20190
Libya20200
Libya20210
Libya20220
Liechtenstein20170
Liechtenstein20180
Liechtenstein20190
Liechtenstein20200
Liechtenstein20210
Liechtenstein20220
Madagascar20170
Madagascar20180
Madagascar20190
Madagascar20200
Madagascar20210
Madagascar20220
Malawi20170
Malawi20180
Malawi20190
Malawi20200
Malawi20210
Malawi20220
Malaysia20170
Malaysia20180
Malaysia20190
Malaysia20201
Malaysia20212
Malaysia20222
Maldives20191
Maldives20201
Maldives20212
Maldives20222
Malta20201
Malta20212
Malta20222
Mexico20170
Mexico20181
Mexico20191
Mexico20201
Mexico20212
Mexico20222
Mozambique20200
Mozambique20210
Mozambique20220
Myanmar20180
Myanmar20190
Myanmar20200
Myanmar20210
Myanmar20220
Namibia20170
Namibia20180
Namibia20190
Namibia20201
Namibia20212
Namibia20222
Nauru20190
Nauru20201
Nauru20212
Nauru20222
Nepal20170
Nepal20180
Nepal20190
Nepal20200
Nepal20210
Nepal20220
New Zealand20170
New Zealand20181
New Zealand20191
New Zealand20201
New Zealand20212
New Zealand20222
Nicaragua20170
Nicaragua20181
Nicaragua20191
Nicaragua20201
Nicaragua20212
Nicaragua20222
Nigeria20170
Nigeria20180
Nigeria20190
Nigeria20201
Nigeria20212
Nigeria20222
Niue20201
Niue20212
Niue20222
Palau20170
Palau20181
Palau20191
Palau20201
Palau20212
Palau20222
Palestine, Occupied Territories20170
Palestine, Occupied Territories20181
Palestine, Occupied Territories20191
Palestine, Occupied Territories20201
Palestine, Occupied Territories20212
Palestine, Occupied Territories20222
Panama20170
Panama20180
Panama20191
Panama20201
Panama20212
Panama20222
Paraguay20170
Paraguay20180
Paraguay20190
Paraguay20201
Paraguay20212
Paraguay20222
Peru20170
Peru20180
Peru20190
Peru20200
Peru20210
Peru20220
Philippines20170
Philippines20180
Philippines20190
Philippines20200
Philippines20210
Philippines20220
Saint Kitts and Nevis20190
Saint Kitts and Nevis20201
Saint Kitts and Nevis20212
Saint Kitts and Nevis20222
Saint Lucia20180
Saint Lucia20191
Saint Lucia20201
Saint Lucia20212
Saint Lucia20222
Saint Vincent and the Grenadines20170
Saint Vincent and the Grenadines20180
Saint Vincent and the Grenadines20191
Saint Vincent and the Grenadines20201
Saint Vincent and the Grenadines20212
Saint Vincent and the Grenadines20222
Samoa20170
Samoa20181
Samoa20191
Samoa20201
Samoa20212
Samoa20222
San Marino20170
San Marino20181
San Marino20191
San Marino20201
San Marino20212
San Marino20222
Sao Tome and Principe20170
Sao Tome and Principe20180
Sao Tome and Principe20190
Sao Tome and Principe20200
Sao Tome and Principe20210
Sao Tome and Principe20220
Seychelles20180
Seychelles20190
Seychelles20200
Seychelles20210
Seychelles20220
South Africa20170
South Africa20180
South Africa20191
South Africa20201
South Africa20212
South Africa20222
Sudan20200
Sudan20210
Sudan20220
Tanzania20190
Tanzania20200
Tanzania20210
Tanzania20220
Thailand20171
Thailand20181
Thailand20191
Thailand20201
Thailand20212
Thailand20222
Timor-Leste20180
Timor-Leste20190
Timor-Leste20200
Timor-Leste20210
Timor-Leste20220
Togo20170
Togo20180
Togo20190
Togo20200
Togo20210
Togo20220
Trinidad and Tobago20191
Trinidad and Tobago20201
Trinidad and Tobago20212
Trinidad and Tobago20222
Tuvalu20170
Tuvalu20180
Tuvalu20190
Tuvalu20201
Tuvalu20212
Tuvalu20222
Uruguay20170
Uruguay20181
Uruguay20191
Uruguay20201
Uruguay20212
Uruguay20222
Vanuatu20170
Vanuatu20181
Vanuatu20191
Vanuatu20201
Vanuatu20212
Vanuatu20222
Venezuela20170
Venezuela20181
Venezuela20191
Venezuela20201
Venezuela20212
Venezuela20222
Viet Nam20170
Viet Nam20181
Viet Nam20191
Viet Nam20201
Viet Nam20212
Viet Nam20222
Zambia20190
Zambia20200
Zambia20210
Zambia20220

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).