Ohio Rev. Code Ann. § 505.82
(A) If a board of township trustees by a unanimous vote or, in the event of the unavoidable absence of one trustee, by an affirmative vote of two trustees adopts a resolution declaring that an emergency exists that threatens life or property within the unincorporated territory of the township or that such an emergency is imminent, the board may exercise the powers described in divisions (A)(1) and (2) and (B) of this section during the emergency for a period of time not exceeding six months following the adoption of the resolution. The resolution shall state the specific time period for which the emergency powers are in effect.