Ohio Rev. Code Ann. § 4506.16
(A) Any person who is found to have been convicted of a violation of an out-of-service order shall be disqualified by the registrar of motor vehicles as follows:
(B)
(D) The registrar of motor vehicles shall disqualify any holder of a commercial driver's license or commercial driver's license temporary instruction permit, or any operator of a commercial motor vehicle for which a commercial driver's license or permit is required, from operating a commercial motor vehicle as follows:
(3) Upon a first conviction for any of the following violations while transporting hazardous materials, three years:
(5)
(6)
(E) For the purposes of this section, conviction of a violation for which disqualification is required includes conviction under any municipal ordinance that is substantially similar to any section of the Revised Code that is set forth in division (D) of this section and may be evidenced by any of the following:
(F) For purposes of this section, conviction of disqualifying offenses committed in a noncommercial motor vehicle are included if either of the following applies: