Oyo State Independent Electoral Commission (OYSIEC) was established by the State Independent Electoral Commission Law, 1999 pursuant to Section 197 of the Constitution of the Federal Republic of Nigeria, 1999 which establishes the State Independent Electoral Commission, Judicial Service Commission and Civil Service Commission in each of the States of the Federation.
According to the Constitution of the Federal Republic of Nigeria, and State Independent Electoral Commission Law, the Commission has power to:
- Conduct, organize and supervise all elections to Local Government Councils in the State in accordance with the provisions of the law or any other enactment, regulations rules or manuals issued by the electoral Commission; and
- Render such advice as it may consider necessary to the Independent National Electoral Commission (INEC) on the compilation of and the registration of Voters for the Local Government Elections in the State.