Ohio Rev. Code § 1545.20
A board of park commissioners may levy taxes upon all the taxable property within the park district in an amount not in excess of one-half of one mill upon each dollar of the district tax valuation in any one year, subject to the combined maximum levy for all purposes otherwise provided by law. After the budget commission of the county in which the district is located certifies such levy, or such modification thereof as it considers advisable, to the county auditor, he shall place it upon the tax duplicate. The board may then borrow money in anticipation of the collection of such tax, and issue the negotiable notes of such board therefor in an amount not in excess of fifty per cent of the proceeds of such tax, based upon the amount of the current tax valuation. Such notes shall not be issued for a period longer than one year, and shall be payable out of the proceeds of such levy. To the extent of such notes and the interest which accrues thereon such levy shall be exclusively appropriated to the payment of such notes. Any portion of such notes remaining unpaid through any deficiency in such levy shall be payable out of the next ensuing levy which shall be made by said board in the next ensuing year in an amount at least sufficient to provide for the payment of said notes, but not in excess of onehalf of one mill in accordance with section 133.17 of the Revised Code.
R.C. §1545.20