Ohio Revised Code Title LVII. Taxation § 5705.40

Any appropriation ordinance or measure may be amended or supplemented, provided that such amendment or supplement shall comply with all provisions of law governing the taxing authority in making an original appropriation and that no appropriation for any purpose shall be reduced below an amount sufficient to cover all unliquidated and outstanding contracts or obligations certified from or against the appropriation. Transfers may be made by resolution or ordinance from one appropriation item to another, except that a board of county commissioners shall, at the request of the county board of elections, adopt a resolution to transfer funds from one appropriation item of the board of elections to another appropriation item of the board of elections unless the board of county commissioners determines that the transfer is sought for the purpose of providing employee bonuses or salary increases other than increases necessary to reimburse employees for overtime worked. At the close of each fiscal year, the unencumbered balance of each appropriation shall revert to the respective fund from which it was appropriated and shall be subject to future appropriations, provided that funds unexpended at the end of such fiscal year previously appropriated for the payment of obligations unliquidated and outstanding, or previously appropriated pursuant to section 321.261 of the Revised Code for the collection of delinquent taxes, need not be reappropriated, but such unexpended funds shall not be included by any budget-making body or board or any county budget commission in estimating the balance available for the purposes of the next or any succeeding fiscal year.

The annual appropriation measure, or an amendment or supplement thereto, may contain an appropriation for contingencies not to exceed the amount authorized by section 5705.29 of the Revised Code and in the case of a school district may also include a voluntary contingency reserve balance in the amount authorized by such section. By a two-thirds vote of all members of the taxing authority of a subdivision or taxing unit, expenditures may be authorized in pursuance of such contingency appropriation or voluntary contingency reserve balance for any lawful purpose for which public funds may be expended, if such purpose could not have reasonably been foreseen at the time of the adoption of the appropriation measure or, in the case of a voluntary contingency reserve balance, if the board of education requests payment of any portion of such balance.