Ohio Rev. Code Ann. § 133.21
(A) Except as provided in divisions (B) and (C) of this section, the principal amount of securities issued by any subdivision shall be payable in semiannual or annual installments, as serial securities or by mandatory sinking fund or mandatory sinking fund redemption requirements, in:
(2) In such principal installments that the total principal and interest payments on those securities in any fiscal year in which principal is payable is:
(C) Divisions (A) and (B) of this section do not apply to any of the following: