According to the 1977 Constitution of the USSR, as in force at the union's dissolution (and thus, at the abolition of the Presidium), the basic powers of the Presidium of the Supreme Soviet of the USSR were: organization of the work of the Supreme Soviet; preparation of meetings of the Congress of People's Deputies and sessions of the Supreme Soviet; coordination of the work of the committees of the Supreme Soviet; organization of nationwide discussion of legislative bills and "other very important matters of state". By then, most of the Presidium's former powers were reassigned to the whole Supreme Soviet and to the President of the USSR. List of chairmen List of vice chairmen See also List of heads of state of the Soviet Union General Secretary of the Communist Party of the Soviet Union Presidium of the Supreme Soviet of the Russian Soviet Federative Socialist Republic Presidium of the Supreme Soviet of the Ukrainian Soviet Socialist Republic Notes References Further reading 1938 establishments in the Soviet Union 1991 disestablishments in the Soviet Union Supreme Soviet of the Soviet Union Soviet Union bg:Председател на Президиума на Върховния съвет на СССР ru:Председатель Президиума Верховного Совета СССР