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States Parties


Addressing the First Meeting of States Parties to the TPNW (1MSP) in Vienna in June 2022, Ireland hailed the meeting as ‘an important milestone’ but expressed regret that it was taking place ‘at a dark moment for European and global security’.[1]

TPNW Status

20 Sep 2017
6 Aug 2020 (Ratification)
22 Jan 2021
Received 22 Jan 2021
TPNW Article 1(1) prohibitions: Compliance in 2022
(a) Develop, produce, manufacture, acquire Compliant
Test Compliant
Possess or stockpile Compliant
(b) Transfer Compliant
(c) Receive transfer or control Compliant
(d) Use Compliant
Threaten to use Compliant
(e) Assist, encourage or induce Compliant
(f) Seek or receive assistance Compliant
(g) Allow stationing, installation, deployment Compliant
TPNW voting and participation
UNGA resolution on TPNW (latest vote) Voted yes (2023)
Participated in 1MSP (2022) Yes
1MSP delegation size (% women) 8 (38%)
Adoption of TPNW (7 July 2017) Voted yes
Participated in TPNW negotiations (2017) Yes
Negotiation mandate (A/RES/71/258) Voted yes
Other weapons of mass destruction (WMD) treaties
Party to an NWFZ No
Party to the NPT Yes (Ratified 1968)
Ratified the CTBT Yes (Ratified 1999)
Party to the BWC Yes (Ratified 1972)
Party to the CWC Yes (Ratified 1996)
IAEA safeguards and fissile material
Safeguards agreement Yes (21 Feb 1977)
TPNW Art 3(2) deadline N/A
Small Quantities Protocol No
Additional Protocol Yes
Enrichment facilities/reprocessing plants No
HEU stocks No
Plutonium stocks No

Latest developments

The 1MSP appointed Ireland and Thailand as informal facilitators to further explore and articulate the possible areas of tangible cooperation between the TPNW and the Treaty on the Non-Proliferation of Nuclear Weapons (NPT), and other relevant nuclear disarmament and non-proliferation instruments. They will submit recommendations for distribution through a Coordination Committee, and report to the Second Meeting of States Parties.2

At the Tenth Review Conference of the NPT in August 2022, Ireland said that the 1MSP 'successfully demonstrated the value of the TPNW for its states parties as a pathway to fulfilling [NPT] Article VI obligations.’3 In a closing statement to the NPT Review Conference, Ireland and 64 other TPNW supporters urged ‘all states committed to attain and maintain a world without nuclear weapons to join the TPNW without delay’.4

In the First Committee of the UN General Assembly in October 2022, Ireland said that the 1MSP was ‘a critical milestone in allowing the Treaty to establish the necessary foundations for the implementation of its provisions’.5


  • Ireland should continue to encourage other states to adhere to the TPNW.

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