Ohio Rev. Code § 107.15
The governor may appoint an authenticating officer and delegate to such officer power to sign for the governor any document except enrolled bills enacted by the general assembly, nominations to be submitted to the senate for confirmation, clemency actions, interstate compacts, and agreements with the federal government, which document, to have legal effect, requires the governor's signature and which is of a class which the governor has authorized for signature by his authenticating officer in a writing filed in the office of the secretary of state. The authenticating officer shall sign in the following manner:
"_______________, Authenticating Officer for Governor _______________"
The governor may also delegate to his authenticating officer power to use the governor's facsimile signature for signing any document except enrolled bills enacted by the general assembly, nominations to be submitted to the senate for confirmation, clemency actions, interstate compacts, and agreements with the federal government, which document, to have legal effect, requires the governor's signature and is of a class with respect to which the governor has authorized use of his facsimile signature by a writing filed in the office of the secretary of state. As used in this section, "facsimile signature" includes, but is not limited to, the reproduction of any authorized signature by a copper plate, a rubber stamp, or by a photographic, photostatic, or mechanical device.
The governor shall effect such appointment and delegation by filing in the office of the secretary of state in a single document the name of the person appointed as authenticating officer and said officer's signature, a list of the classes of documents the authenticating officer is authorized to sign for the governor, a copy of the governor's facsimile signature, and a list of the classes of documents which the authenticating officer may sign for the governor by affixing the governor's facsimile signature. The governor may revoke such appointment or delegation of powers by filing in the office of the secretary of state a new single document which expressly revokes the previous filing. He may in the same document state anew the appointment of an authenticating officer and the powers delegated to him. The secretary of state shall record and index documents filed by the governor pursuant to this section, and such documents shall be open for public inspection.
The authorized signature of the authenticating officer or an authorized facsimile signature of the governor shall have the same legal effect and validity as the genuine manual signature of the governor.
R.C. §107.15