Legal system: based on English common law, Islamic Shariah law (only in some northern states), and traditional law
Suffrage: 18 years of age; universal
Executive branch: chief of state: President Olusegun OBASANJO (since 29 May 1999); note - the president is both the chief of state and head of government
head of government: President Olusegun OBASANJO (since 29 May 1999); note - the president is both the chief of state and head of government
cabinet: Federal Executive Council
elections: president is elected by popular vote for no more than two four-year terms; election last held 27 February 1999 (next to be held NA 2003)
election results: Olusegun OBASANJO elected president; percent of vote - Olusegun OBASANJO (PDP) 62.8%, Olu FALAE (APP-AD) 37.2%
Legislative branch: bicameral National Assembly consists of Senate (109 seats, three from each state and one from the Federal Capital Territory; members elected by popular vote to serve four-year terms) and House of Representatives (360 seats, members elected by popular vote to serve four-year terms)
elections: Senate - last held 20-24 February 1999 (next to be held NA 2003); House of Representatives - last held 20-24 February 1999 (next to be held NA 2003)
election results: Senate - percent of vote by party - PDP 58%, APP 23%, AD 19%; seats by party - PDP 67, APP 23, AD 19; House of Representatives - percent of vote by party - PDP 58%, APP 30%, AD 12%; seats by party - PDP 221, APP 70, AD 69