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The status of the TPNW

As of July 2024, the Treaty on the Prohibition of Nuclear Weapons (TPNW) has 70 states parties while 27 further states have signed but not yet ratified. This means that a total of 97 states (or 49.2% of all states) have accepted binding obligations in international law under the TPNW. Only 2 more signatures or accessions are needed to pass the 50% mark of the 197 states that can adhere to the treaties in the legal architecture for weapons of mass destruction (WMD).

Figure 1
Global distribution of support for the TPNW. Last updated 29 July 2024.
Category Criterion for TPNW support category
States parties States that have either signed and ratified or acceded to the TPNW.
Signatories States that have signed the TPNW but not yet ratified it.
Other supporters States that are not in category 1 or 2 but whose most recent vote in the UN on the TPNW (the adoption of the Treaty on 7 July 2017 or on the subsequent annual UN General Assembly resolutions on the TPNW) was 'yes'.
Undecided All states that are not in category 1 or 2 and whose most recent vote in the UN on the TPNW (the adoption of the Treaty on 7 July 2017 or on the subsequent annual UN General Assembly resolutions on the TPNW) was an abstention, or which never participated in such a vote.
Opposed All states that are not in category 1 or 2 and whose most recent vote in the UN on the TPNW (the adoption of the Treaty on 7 July 2017 or on the subsequent annual UN General Assembly resolutions on the TPNW) was 'no'
Figure 2
TPNW support by region, as of 31.12.2023
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Figure 3
Speed of ratification and accession - WMD treaties compared
Figure 4
States parties and signatories combined - WMD treaties compared
Figure 5
Status after 6 years - states parties and signatories combined
Figure 6
Gaps in adherence - WMD treaties compared, as of 31.12.2023