18 years of age; universal
Executive branch:
chief of state: President Ahmed Abdallah SAMBI (since 26 May 2006)
head of government: President Ahmed Abdallah SAMBI (since 26 May 2006)
cabinet: Council of Ministers appointed by the president (For more information visit the World Leaders website ) elections: as defined by the 2001 constitution, the presidency rotates every four years among the elected presidents from the three main islands in the Union; election last held on 14 May 2006 (next to be held on 7 November 2010)
election results: Ahmed Abdallah SAMBI elected president; percent of vote - Ahmed Abdallah SAMBI 58.0%, Ibrahim HALIDI 28.3%, Mohamed DJAANFAMI 13.7%
Legislative branch:
unicameral Assembly of the Union (33 seats; 15 deputies are selected by the individual islands' local assemblies and 18 by universal suffrage to serve for five years);
elections: last held on 6 and 20 December 2009 (next to be held in 2014)
election results: percent of vote by party - NA; seats by party - pro-union coalition 19, autonomous coalition 4, independents 1; note - 9 additional seats are filled by deputies from local island assemblies