Saint Vincent and the 
Grenadines signed the Treaty of Tlatelolco on 14 February 1992 and ratified the Treaty on that same date, and on 11 May 1992 presented its declaration of exemption to the requirements indicated in Article 29, paragraph 2, of the Treaty of Tlatelolco.
Saint Vincent and the Grenadines signed a Nuclear Safeguards Agreement with the International Atomic Energy Agency (IAEA) on 18 December 1991 in Vienna and 8 January 1992 in New York in accordance with Article 13 of the Treaty of Tlatelolco.
Saint Vincent and the Grenadines succeeded to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) on 6 November 1984 in London.
Saint Vincent and the Grenadines signed the Comprehensive Nuclear-Test-Ban Treaty (CTBT) on 2 July 2009 and ratified it on 23 September 2009.
Saint Vincent and the Grenadines signed the Treaty on the Prohibition of Nuclear Weapons (TPNW) on 8 December 2017 and ratified it on 31 July 2019.
External link:
Ministry of Foreign Affairs and Foreign Trade of Saint Vincent and the Grenadines