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States Parties

Cook Islands

Cook Islands participated in a virtual Pacific Roundtable hosted by New Zealand on 7 December 2021 to prepare for the First Meeting of States Parties to the TPNW.[1]

4 Sep 2018 (Accession)
22 Jan 2021
Received 4 Sep 2018
TPNW Article 1(1) prohibitions: Compliance in 2021
(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
2021 UNGA resolution on TPNW
2020 UNGA resolution on TPNW
2019 UNGA resolution on TPNW N/A
2018 UNGA resolution on TPNW N/A
Participated in TPNW negotiations N/A
Share of women in TPNW negotiations N/A
Vote on adoption of treaty text N/A
Adoption of TPNW (7 July 2017) N/A
IAEA safeguards and fissile material
Safeguards Agreement Yes*
TPNW Art 3(2) deadline N/A
Small Quantities Protocol Yes (Original)*
Additional Protocol No
Fissile material production facilities No
Highly enriched uranium stocks No
Plutonium stocks (mil/civ) No/No
Related treaties and regimes
Party to the BWC Yes
Party to the CWC Yes
Party to the PTBT No
Ratified the CTBT Yes
Party to the NPT Yes*
Party to a NWFZ Yes (Rarotonga)
Member of the CD No

Latest developments

Cook Islands' High Commissioner Elizabeth Wright-Koteka participated in a celebration of the TPNW's entry into force in Wellington and online on 21 January 2021.2 Cook Islands was the first state party to comply with the obligation to submit the declaration required by the Treaty’s Article 2.


  • Cook Islands should continue to encourage other states to adhere to the TPNW.
  • Cook Islands should ensure that all the TPNW obligations are implemented domestically, through legal, administrative, and other necessary measures.
  • Cook Islands should conclude and bring into force an Additional Protocol with the IAEA, and upgrade to a Modified Small Quantities Protocol.

* Through territorial application by New Zealand



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