Ohio Rev. Code Ann. § 133.07
(A) A county shall not incur, without a vote of the electors, either of the following:
(B) A county shall not incur total net indebtedness that exceeds an amount equal to one of the following limitations that applies to the county:
(C) In calculating the net indebtedness of a county, none of the following securities shall be considered:
(2) Self-supporting securities issued for any purposes, including, but not limited to, any of the following general purposes: