Iranian Government Structure

Ayatollah - He is the supreme leader, appointed for life by the Experts' Assembly and subject to the assembly's review. He is commander of the armed forces, head of the police and the Revolutionary Guards security forces.
Experts' Assembly - Made up of 86 clerics who are popularly elected but meet only once a year or so; candidates are vetted by the Guardian Council. These clerics formally choose the supreme leader; they also occasionally reconfirm the supreme leader.

Guardian Council - Made up of 6 jurists and 6 clerics; council vets candidates for president and parliament.

Majles (Islamic Consultative Assembly/Parliament) - 270 members who are popularly elected; laws passed are reviewed by Guardian Council for compliance with Islamic and constitutional laws.

President - Popularly elected

Executive Ministries - Agricultural Jihad; Commerce; Communication and Information Technology; Cooperatives; Culture and Islamic Guidance; Defense and Logistics; Economy and Finance Affairs; Education; Energy; Foreign Affairs; Health and Medical Education; Housing and Urban Development; Minister of Industries and Mines Supervisor; Minister of Intelligence; Interior; Justice; Labour and Social Affairs; Petroleum Supervision; Roads and Transportation; Science, Research, and Technology; Welfare and Social Security

Expediency Council - Several dozen members appointed by supreme leader; they represent a cross section of political currents and serve in an advisory capacity; they also resolve any disputes between parliament and Guardian Council.

Judiciary - There are 4 courts: public, revolutionary, press, and clerical.