Home2008 Treaties and Agreements ...Bulgaria (08-325) – Agreement to Facilitate the Provision of Assistance for Nuclear Nonproliferation Purposes hide Bulgaria (08-325) – Agreement to Facilitate the Provision of Assistance for Nuclear Nonproliferation Purposes TIAS Office of Treaty Affairs March 25, 2008 Nonproliferation: Nuclear Material Agreement signed at Sofia March 25, 2008; entered into force March 25, 2008. Download attachment [413 KB] Tags Arms Control and Nonproliferation Bulgaria Nonproliferation Treaties