Baluchestan,
Tehran, Yazd, Zanjan

Independence:
1 April 1979 (Islamic Republic of Iran proclaimed)

National holiday:
Republic Day, 1 April (1979)
note: additional holidays celebrated widely in Iran include
Revolution Day, 11 February (1979); Noruz (New Year's Day), 21
March; Constitutional Monarchy Day, 5 August (1925); and various
Islamic observances that change in accordance with the lunar-based
hejira calendar

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

Suffrage:
15 years of age; universal

Executive branch:
chief of state: Supreme Leader Ali Hoseini-KHAMENEI (since 4 June
1989)
head of government: President Mahmud AHMADI-NEJAD (since 3 August
2005); First Vice President Parviz DAVUDI (since 11 September 2005)
cabinet: Council of Ministers selected by the president with
legislative approval; the Supreme Leader has some control over
appointments to the more sensitive ministries
note: also considered part of the Executive branch of government are
three oversight bodies: 1) Assembly of Experts, a popularly elected
body of 86 religious scholars constitutionally charged with
determining the succession of the Supreme Leader, reviewing his
performance, and deposing him if deemed necessary; 2) Expediency
Council or Council for the Discernment of Expediency is a policy
advisory and implementation board consisting of permanent and
temporary members representing all major government factions, some
of whom are appointed by the Supreme Leader; the Council exerts
supervisory authority over the executive, judicial, and legislative
branches and resolves legislative issues on which the Majles and the
Council of Guardians disagree; 3) Council of Guardians or Council of
Guardians of the Constitution is a 12-member board of clerics and
jurists serving six-year terms that determines whether proposed
legislation is both constitutional and faithful to Islamic law; the
Council also vets candidates for suitability and supervises national
elections
elections: Supreme Leader appointed for life by the Assembly of
Experts; president elected by popular vote for a four-year term
(eligible for a second term); election last held 17 June 2005 with a
two-candidate runoff on 24 June 2005 (next to be held in 2