Legal system:
based on Sharia law system; has not accepted compulsory ICJ jurisdiction
Suffrage:
18 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 Mohammad Reza RAHIMI (since 13 September 2009)
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 (Majles-Khebregan), a popularly elected body charged with determining the succession of the Supreme Leader, reviewing his performance, and deposing him if deemed necessary; 2) Expediency Council or the Council for the Discernment of Expediency (Majma-e-Tashkise-Maslahat-e-Nezam) exerts supervisory authority over the executive, judicial, and legislative branches and resolves legislative issues on which the Majles and the Council of Guardians disagree and since 1989 has been used to advise national religious leaders on matters of national policy; in 2005 the Council's powers were expanded to act as a supervisory body for the government; 3) Council of Guardians of the Constitution or Council of Guardians or Guardians Council (Shora-ye Negaban-e Qanun-e Assassi) determines whether proposed legislation is both constitutional and faithful to Islamic law, vets candidates for suitability, and supervises national elections
elections: Supreme Leader is appointed for life by the Assembly of Experts; president is elected by popular vote for a four-year term (eligible for a second term and third nonconsecutive term); last held 12 June 2009;(next presidential election slated for June 2013)