Home2014 Treaties and Agreements ...International Atomic Energy Agency (14-606) – Amendment to Agreement of May 11, 1959 for Cooperation hide International Atomic Energy Agency (14-606) – Amendment to Agreement of May 11, 1959 for Cooperation TIAS Office of Treaty Affairs June 6, 2014 Nuclear Energy: Cooperation Agreement amending the agreement of May 11, 1959, as amended. Signed at Vienna January 21, 2014; Entered into force June 6, 2014. Download attachment [300 KB] Tags International Atomic Energy Agency Nuclear Energy Treaties