Home2017 Treaties and Agreements ...Multilateral (17-1214) – Agreement Continuing the International Science and Technology Center hide Multilateral (17-1214) – Agreement Continuing the International Science and Technology Center TIAS Office of Treaty Affairs December 14, 2017 Nonproliferation: Science and Technology Center Agreement signed at Astana December 9, 2015; entered into force December 14, 2017. Download attachment [952 KB] Tags Arms Control and Nonproliferation Multilateral Nonproliferation Treaties