(A) Except for guide dogs registered under R.C. § 955.011 and dogs kept by an institution or organization for teaching and research purposes under R.C. § 955.16, no person shall own, keep or harbor a dog more than three months of age without annually registering such dog with the County Auditor. Failure of any dog at any time to wear a valid registration tag shall be prima facie evidence of lack of registration and subject such dog to impounding and disposition as provided by R.C. § 955.16.
(B) Whoever violates this section is guilty of a minor misdemeanor for a first offense and a misdemeanor of the fourth degree for each subsequent offense.
(R.C. § 955.99(D)).