Government
Country name:
conventional long form: Islamic Republic of Iran
conventional short form: Iran
local long form: Jomhuri-ye Eslami-ye Iran
local short form: Iran
Data code: IR
Government type: theocratic republic
Capital: Tehran
Administrative divisions: 25 provinces (ostanha, singular—ostan);
Ardabil, Azarbayjan-e Gharbi, Azarbayjan-e Sharqi, Bushehr, Chahar
Mahall va Bakhtiari, Esfahan, Fars, Gilan, Hamadan, Hormozgan, Ilam,
Kerman, Kermanshahan, Khorasan, Khuzestan, Kohkiluyeh va Buyer
Ahmadi, Kordestan, Lorestan, Markazi, Mazandaran, Semnan, Sistan va
Baluchestan, Tehran, Yazd, Zanjan
note: there may be three new provinces named Golestan, Qom, and
Qazvin
Independence: 1 April 1979 (Islamic Republic of Iran proclaimed)
National holiday: Islamic Republic Day, 1 April (1979)
Constitution: 2-3 December 1979; revised 1989 to expand powers of
the presidency and eliminate the prime ministership
Legal system: the Constitution codifies Islamic principles of
government