The Constitution of the Islamic Republic of Iran is the supreme law of Iran. It was adopted by referendum on 2 and 3 December 1979, and went into force replacing the Constitution of 1906. It has been amended once, on 28 July 1989. The constitution was originally made up of 175 articles in 12 chapters, but amended in 1989 to 177 articles in 14 chapters.
It has been called a hybrid regime of theocratic and democratic elements. Articles One and Two vest sovereignty in God, and Article Six "mandates popular elections for the presidency and the Majlis, or parliament." Main democratic procedures and rights are subordinate to the Guardian Council and the Supreme Leader, whose powers are spelled out in Chapter Eight (Articles 107–112).