Chile signed the Treaty of Tlatelolco on 14 February 1967, ratified the Treaty on 9 October 1974 and on 18 January 1994 presented its declaration of exemption to the requirements indicated in Article 29, paragraph 2, of the Treaty of Tlatelolco.
Chile signed a Nuclear Safeguards Agreement with the International Atomic Energy Agency (IAEA) on 5 April 1995, in accordance with Article 13 of the Treaty of Tlatelolco.
Chile acceded to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) on 25 May 1995 in Washington.
Chile signed the Comprehensive Nuclear-Test-Ban Treaty (CTBT) on 24 September 1996 and ratified it on 12 July 2000.
Chile signed the Treaty on the Prohibition of Nuclear Weapons (TPNW) on 20 September 2017 and ratified it on 23 September 2021.
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