Ohio Rev. Code Ann. § 4506.05
(A) Notwithstanding any other provision of law, a person may drive a commercial motor vehicle on a highway in this state if all of the following conditions are met:
(5) The person is medically certified as physically qualified to operate a commercial motor vehicle in accordance with this chapter and is able to verify the medical certification when on duty as follows:
(b) On or after January 30, 2012: