_#_Constitution: 16 May 1971, effective 18 May 1971; a new constitution is likely to be adopted in 1991
_#_Legal system: based on civil law system, with Soviet law influence; judicial review of legislative acts in the State Council; has accepted compulsory ICJ jurisdiction
_#_National holiday: Liberation of Bulgaria from the Ottoman Empire, 3 March (1878)
_#_Executive branch: president, chairman of the Council of Ministers (premier), three deputy chairmen of the Council of Ministers, Council of Ministers
_#_Legislative branch: unicameral National Assembly (Narodno Sobranie)
_#_Judicial branch: Supreme Court
_#_Leaders:
Chief of State—President Zhelyu ZHELEV (since 1 August 1990);
Head of Government—Chairman of the Council of Ministers
(Premier) Dimitur POPOV (since 19 December 1990);
Deputy Chairman of the Council of Ministers Aleksandur TOMOV
(since 19 December 1990);
Deputy Chairman of the Council of Ministers Viktor VULKOV (since
19 December 1990);
Deputy Chairman of the Council of Ministers Dimitur LUDZHEV
(since 19 December 1990);
_#_Political parties and leaders: government—Bulgarian Socialist Party (BSP), formerly Bulgarian Communist Party (BCP), Aleksandur LILOV, chairman;