(a) Any negligence, or willful or wanton misconduct, that is committed by a minor under 18 years of age when driving a motor vehicle upon a highway shall be imputed to the person who has signed the application of the minor for a probationary license, restricted license or temporary instruction permit, which person shall be jointly and severally liable with the minor for any damages caused by the negligence or the willful or wanton misconduct. This joint and severable liability is not subject to Ohio R.C. 2307.31(B), 2315.19(D) or 2315.20(F) with respect to a negligence or other tort claim that otherwise is subject to any of such sections.
(b) There shall be no imputed liability imposed under this section if a minor under 18 years of age has proof of financial responsibility with respect to the operation of a motor vehicle owned by the minor or, if the minor is not the owner of a motor vehicle, with respect to the minor's operation of any motor vehicle, in the form and in the amounts as required under Ohio R.C. Chapter 4509.
(ORC 4507.07(B))