Home2007 Treaties and Agreements ...Malta (07-1219) – Agreement Concerning Cooperation to Suppress the Proliferation of Weapons of Mass Destruction, Their Delivery Systems, and Related Materials by Sea hide Malta (07-1219) – Agreement Concerning Cooperation to Suppress the Proliferation of Weapons of Mass Destruction, Their Delivery Systems, and Related Materials by Sea TIAS Office of Treaty Affairs December 19, 2007 Nonproliferation: Weapons Agreement signed at Washington March 15, 2007; entered into force December 19, 2007. With appendix. Download attachment [1 MB] Tags Arms Control and Nonproliferation Malta Nonproliferation Treaties