Treaty Tracker

Arms control & security

Treaty on the Prohibition of Nuclear Weapons

Source: UN Treaty Collection · scraped 2026-09-26

Figures below count the 193 UN member states separately from other parties to this treaty (international organizations and non-member observer states) — a treaty can have more parties than there are UN member states.

71/193

RatifiedUN member states

75 in total, incl. 4 non-UN members (Cook Islands, Holy See, Niue, State of Palestine)

26

Signed, not ratifiedUN member states

0

WithdrawnUN member states

96

No actionUN member states

AllRatifiedSigned, not ratifiedWithdrawnNo action
CountrySignatureRatificationWithdrawalStatus
Algeria2017-09-20——Signed, not ratified
Angola2018-09-27——Signed, not ratified
Bahamas2023-09-19——Signed, not ratified
Barbados2022-09-22——Signed, not ratified
Brazil2017-09-20——Signed, not ratified
Brunei Darussalam2018-09-26——Signed, not ratified
Burkina Faso2022-09-22——Signed, not ratified
Central African Republic2017-09-20——Signed, not ratified
Colombia2018-08-03——Signed, not ratified
Djibouti2023-01-09——Signed, not ratified
Equatorial Guinea2022-09-22——Signed, not ratified
Gabon2026-09-23——Signed, not ratified
Haiti2022-09-22——Signed, not ratified
Kyrgyzstan2025-09-26——Signed, not ratified
Libya2017-09-20——Signed, not ratified
Liechtenstein2017-09-20——Signed, not ratified
Madagascar2017-09-20——Signed, not ratified
Mozambique2020-08-18——Signed, not ratified
Myanmar2018-09-26——Signed, not ratified
Nepal2017-09-20——Signed, not ratified
Niger2020-12-09——Signed, not ratified
Sudan2020-07-22——Signed, not ratified
Togo2017-09-20——Signed, not ratified
United Republic of Tanzania2019-09-26——Signed, not ratified
Zambia2019-09-26——Signed, not ratified
Zimbabwe2020-12-04——Signed, not ratified