The Cook Islands signed the Mine Ban Treaty on 3 December 1997 and ratified it on 16 March 2006, becoming a State Party on 1 September 2006. The Cook Islands has never used, produced, exported, or imported antipersonnel mines, including for training purposes. The Cook Islands adopted legislation to implement the treaty domestically in 2007. The Cook Islands submitted its second Mine Ban Treaty Article 7 report on 7 July 2011, which was its first submission since May 2007.

The Cook Islands did not attend any Mine Ban Treaty meetings in 2010 or the first half of 2011.

The Cook Islands is not party to the Convention on Conventional Weapons.