Ohio Rev. Code Ann. § 3937.43
(A) As used in this section:
(B) Every rating plan or schedule of rates for automobile insurance policies that is filed with the superintendent of insurance shall provide for an appropriate reduction in premium charges for any insured or applicant for insurance under the following conditions:
(2) The applicant or insured successfully completes a motor vehicle accident prevention course, which includes classroom instruction and the passing of an examination in accordance with both of the following:
(D)