 Duties are similar to heads of governments in other countries, except that the armed forces, Chief judiciary system, state television, and other key governmental organizations are under the control of the Supreme Leader of Iran.It is also an informal custom that cabinet ministers for sensitive departments like foreign relations and intelligence are coordinated with the Supreme Leader.Any Iranian citizen born in Iran, believing in God and the official religion of Iran (Islam), who has always been loyal to the Constitution and is above 21 years of age may register as a presidential candidate.