Legal provisions for mandatory referendums at national level

Constitution of the Federal Republic of Nigeria 1999

(Adopted in 1999, last amended in 2011)

http://www.chr.up.ac.za/chr_old/indigenous/documents/Nigeria/Legislation/Constitution%20of%20Nigeria.pdf

(Mandatory Referendum)

Article 8.

(1) An Act of the NationalAssembly for the purpose of creating a new State shall only be passed if-

(b)[…] a proposal for the creationof the State is thereafter approved in a referendum by at least two-thirdsmajority of the people of the area where the demand for creation of the Stateoriginated;

(c) the result of the referendumis then approved by a simple majority of all the States of the Federationsupported by a simple majority of members of the Houses of Assembly; […]

Article 8.

(3) A bill for a Law of a House ofAssembly for the purpose of creating a new local government area shall only bepassed if -  

(b) […]a proposal for thecreation of the local government area is thereafter approved in a referendum byat least two-thirds majority of the people of the local government area wherethe demand for the proposed local government area originated;

(c) theresult of the referendum is then approved by a simple majority of the membersin each local government council in a majority of all the local governmentcouncils in the State; and[…]