Ohio Rev. Code Ann. § 4511.81
(A) When any child who is in either or both of the following categories is being transported in a motor vehicle, other than a taxicab or public safety vehicle as defined in section 4511.01 of the Revised Code, that is required by the United States department of transportation to be equipped with seat belts at the time of manufacture or assembly, the operator of the motor vehicle shall have the child properly secured in accordance with the manufacturer's instructions in a child restraint system that meets federal motor vehicle safety standards:
(B) When any child who is in either or both of the following categories is being transported in a motor vehicle, other than a taxicab, that is owned, leased, or otherwise under the control of a nursery school or day-care center, the operator of the motor vehicle shall have the child properly secured in accordance with the manufacturer's instructions in a child restraint system that meets federal motor vehicle safety standards:
(L)
(1) Whoever violates division (A), (B), (C), or (D) of this section shall be punished as follows, provided that the failure of an operator of a motor vehicle to secure more than one child in a child restraint system, booster seat, or occupant restraining device as required by this section that occurred at the same time, on the same day, and at the same location is deemed to be a single violation of this section: