Home2013 Treaties and Agreements ...Ukraine (13-1227.1) – Extension of Nonproliferation Agreement of October 25, 1993, as extended and amended. hide Ukraine (13-1227.1) – Extension of Nonproliferation Agreement of October 25, 1993, as extended and amended. TIAS Office of Treaty Affairs December 27, 2013 Weapons: Nonproliferation Effected by exchange of notes at Kyiv December 24 and 27, 2013; entered into force December 27, 2013. Extension of agreement signed October 25, 1993: TIAS 93-1231. Agreement previously extended and amended July 19, December 8 and 15, 2006: TIAS 06-1215; July 24 and September 18, 2003: TIAS 03-918; June 30 and July 29, 1999: TIAS 99-729. Download attachment [4 MB] Tags Nuclear Nonproliferation Treaties Ukraine Weapons