Ohio Rev. Code § 3311.08
The board of education of any local school district which contains within its territorial boundaries:
When the board of education of a local school district notifies the governing board of the educational service center on or before the first day of May in any year, that it has adopted, by a majority vote of its full membership, a declaration that such local school district shall be exempt from the supervision of the educational service center governing board, such local school district shall be exempt from the supervision of the educational service center governing board for the school year commencing the first day of July following the date of such notification.
The local school district so exempted from the supervision of the educational service center governing board shall be known as an "exempted village school district" until its status as an exempted village school district has been changed.
A census taken by the board of a local school district, of territory outside the corporate limits of a village, shall be taken by persons appointed by such board. Each person so appointed shall take an oath or affirmation to take such a census accurately and shall make the return under oath to the treasurer of the board. The treasurer shall send certified copies of such census to the county auditor and to the director of education and workforce. Such census shall be approved by the director before the school district is deemed to have sufficient population to meet the requirements of an exempted village school district.
R.C. § 3311.08