(a) (1) No person who is the owner or operator of a motor vehicle shall fail to display in plain view on the front and rear of the motor vehicle a license plate that bears the distinctive number and registration mark assigned to the motor vehicle by the Ohio Director of Public Safety, including any county identification sticker and any validation sticker issued under Ohio R.C. 4503.19 and 4503.191, as follows:
A. A manufacturer of motor vehicles or dealer therein, the holder of an in transit permit, and the owner or operator of a motorcycle, motorized bicycle or moped, motor-driven cycle or motor scooter, autocycle, cab-enclosed motorcycle, manufactured home, mobile home, trailer or semitrailer shall display a license plate on the rear only.
B. A motor vehicle that is issued two license plates shall display the validation sticker only on the rear license plate, except that a commercial tractor that does not receive an apportioned license plate under the international registration plan shall display the validation sticker on the front of the commercial tractor.
C. An apportioned vehicle receiving an apportioned license plate under the international registration plan shall display the license plate only on the front of a commercial tractor and on the rear of all other vehicles.
(2) All license plates shall be securely fastened so as not to swing, and shall not be covered by any material that obstructs their visibility.
(3) No person to whom a temporary license placard or windshield sticker has been issued for the use of a motor vehicle under Ohio R.C. 4503.182, and no operator of that motor vehicle, shall fail to display the temporary license placard in plain view from the rear of the vehicle either in the rear window or on an external rear surface of the motor vehicle, or fail to display the windshield sticker in plain view on the rear window of the motor vehicle. No temporary license placard or windshield sticker shall be covered by any material that obstructs its visibility.
(b) A law enforcement officer shall only issue a ticket, citation or summons, or cause the arrest or commence a prosecution, for the failure to display a license plate in plain view on the front of a parked motor vehicle if the officer first determines that another offense has occurred and either places the operator or vehicle owner under arrest or issues a ticket, citation, or summons to the operator or vehicle owner for the other offense.
(ORC 4503.21)