Ohio Revised Code Title XXXIX. Insurance § 3937.34

(A) The policy number;

(B) The date of the notice;

(C) The effective date of expiration;

(D) An explanation of the reason for nonrenewal and the information upon which it is based, or a statement that such explanation will be furnished to the insured in writing within five days after receipt of the insured's written request therefor to the insurer.

Upon compliance by the insurer with all requirements of this section, such automobile insurance policy expires on the expiration date stated in the policy and notice of intention not to renew.