Home2012 Treaties and Agreements ...Bulgaria (12-110) – Arrangement for the Exchange of Technical Information and Cooperation in Nuclear Safety Matters hide Bulgaria (12-110) – Arrangement for the Exchange of Technical Information and Cooperation in Nuclear Safety Matters TIAS Office of Treaty Affairs January 10, 2013 Nuclear Energy: Nuclear Safety Arrangement signed at Rockville and Sofia November 21, 2011 and January 10, 2012; entered into force January 10, 2012. With addenda. Download attachment [576 KB] Tags Bulgaria Nuclear Energy Treaties