Ohio Rev. Code Ann. § 4506.10
(A) No person who holds a valid commercial driver's license shall drive a commercial motor vehicle unless the person is physically qualified to do so.
(2) Beginning on January 30, 2012, any person applying for a commercial driver's license, renewing of a commercial driver's license, or transferring a commercial driver's license from out of state shall self-certify to the registrar for purposes of 49 C.F.R. 383.71, one of the following in regard to the applicant's operation of a commercial motor vehicle, as applicable:
(a)
(b)
(C)
(1) Except as provided in division (C)(2) of this section, any medical examination required by this section shall be performed only by one of the following: