Ohio Rev. Code § 5501.21
The director of transportation shall provide a seal of the department of transportation, which shall be inscribed: "State of Ohio, Department of Transportation."
Copies of records or parts thereof, and copies of any plan, drawing, document, or paper writing in the department when certified by the director to be true and correct copies of the record, plan, drawing, document, or paper writing and attested by the seal of the department shall be received in evidence in the courts of the state in the same manner and with the same effect as though the record, plan, drawing, document, or paper writing were offered. Any such copy as may be required by any party to any suit, upon request of such party, shall be furnished by the director.
The director need not produce in any court an original paper or electronic record, plan, drawing, or other document.
All records, plans, and other documents and drawings of the department shall be open to the inspection of any interested person, subject to such reasonable rules as to the time of inspection and as to supervision, as the director prescribes.
R.C. § 5501.21