|The Constitution of the Federal Republic of Nigeria was promulgated on 5 May 1999, and entered into force on 31 May. The main provisions are summarized below:|
|Nigeria is one indivisible sovereign state, to be known as the Federal Republic of Nigeria. Nigeria is a Federation, comprising 36 States and a Federal Capital Territory. The Constitution includes provisions for the creation of new States and for boundary adjustments of existing States.|
The legislative powers of the Federal are vested in the National Assembly, comprising a Senate and a House of Representatives. The 109-member Senate consists of three Senators from each State and one from the Federal Capital Territory, who are elected for a term of four years. The House of Representatives comprises 360 members, representing constituencies of nearly equal population as far as possible, who are elected for a four-year term. The Senate and House of Representatives each have a Speaker and Deputy Speaker, who are elected by the members of the House from among themselves. Legislation may originate in either the Senate or the House of Representatives, and having been approved by the House in which it originated by a two-thirds majority, will be submitted to the other House for approval, and subsequently presented to the President for assent. Should the President withhold his assent, and the bill returned to the National Assembly and again approved by each House by a two-third majority, the bill will become law. The legislative powers of a State of the Federation will be vested in the House of Assembly of the State. The House of Assembly of a State will consist of three or four times the number of seats that the State holds in the House of Representatives (comprising not less than 24 and not more than 40 members).
The judiciary powers of the Federation are vested in the courts established for the Federation, and the judicial powers of a State in the courts established for the State. The Federation has a Supreme Court, a Court of Appeal and a Federal High Court. Each State has a High Court, a Sharia Court of Appeal and a Customary Court of Appeal. Chief Judges are nominated on the recommendation of a National Judicial Council.
The States are divided into a combined total of 768 local government areas. The system of local government by democratically elected local government councils is guaranteed, and the Government of each State will ensure their existence. Each local government council within the State will participate in the economic planning and development of the area over which it exercises authority.