Ohio Rev. Code Ann. § 4506.24
(B) Upon receiving an application for a restricted commercial driver's license under section 4506.07 of the Revised Code and payment of a fee as provided in section 4506.08 of the Revised Code, the registrar may issue such license to any person who meets all of the following requirements:
(3) Certifies that during the two-year period immediately preceding application, all of the following apply:
(4) Certifies and also provides evidence that the person is employed in one or more of the following farm-related service industries requiring the person to operate a commercial motor vehicle:
(D) The holder of a restricted commercial driver's license and valid waiver for farm-related service industries may operate a class B or C commercial motor vehicle subject to all of the following restrictions:
(2) The operation of the commercial motor vehicle does not involve transporting hazardous materials for which placarding is required, except as follows: