2011/292/EU: Council Decision of 31 March 2011 on the security rules for protecting EU classified information
OJ L 141, 27.5.2011, p. 17–65 (BG, ES, CS, DA, DE, ET, EL, EN, FR, IT, LV, LT, HU, MT, NL, PL, PT, RO, SK, SL, FI, SV)
