Skip to main content
States Parties

New Zealand

State with nuclear-free security policy

New Zealand was at the forefront of the diplomatic process towards a treaty prohibiting nuclear weapons, including during the negotiation of the TPNW in 2017. New Zealand is a state party to the TPNW from 22 January 2021 and is in compliance with all of the prohibitions in Article 1 of the Treaty.

TPNW status
Signed (20 Sep 2017) and ratified (31 Jul 2018)
Compliance with prohibitions in TPNW Article 1(1)
Art 1(1)(a) Develop, produce, manufacture, acquire Compliant
Test Compliant
Possess or stockpile Compliant
Art 1(1)(b) Transfer Compliant
Art 1(1)(c) Receive transfer or control Compliant
Art 1(1)(d) Use Compliant
Threaten to use Compliant
Art 1(1)(e) Assist, encourage or induce Compliant
Art 1(1)(f) Seek or receive assistance Compliant
Art 1(1)(g) Allow stationing, installation, deployment Compliant
TPNW voting and participation
Vote on negotiation mandate (A/RES/71/258) Voted yes
Participated in treaty negotiations (% women) Yes (83%)
Vote on adoption of treaty text Voted yes
Last vote on UNGA resolution Voted yes
Fissile material
Fissile material production facilities No
Highly enriched uranium stocks No
Plutonium stocks (military/civilian) No/No
Related treaties and regimes
Party to the NPT Yes
Party to a NWFZ Yes (Rarotonga)
Ratified the CTBT Yes
Party to the PTBT Yes
Member of the CD Yes
IAEA CSA in force Yes
IAEA AP in force Yes
Party to the CWC Yes
Party to the BWC Yes

Latest developments

New Zealand's Prime Minister, Jacinda Ardern, issued a video message on social media in connection with the 75th commemoration of the atomic bombing of Hiroshima and Nagasaki, urging all states to join the TPNW. In the General Debate of the 2020 UN General Assembly, New Zealand said: 'We know that no state or organisation can prepare for the unimaginable suffering in the wake of a nuclear holocaust. If we cannot prepare, we must prevent. That is why New Zealand has signed up to the Treaty on the Prohibition of Nuclear Weapons. We urge all others to join this landmark Treaty, and we welcome its imminent entry-into-force. The Treaty’s global prohibition on nuclear weapons is a necessary step on the way towards their total elimination.' See:,


  • New Zealand should continue to encourage other states to adhere to the TPNW.
  • New Zealand should ensure that all the TPNW obligations are implemented domestically, through legal, administrative, and other necessary measures.
Can you help us update this state profile? Send e-mail
Did you find this interesting?
Print state profile