The town clerk of each town shall, annually, on or before July first, provide the municipal animal control officer or regional animal control officer with a copy of each dog license issued by such clerk. Such municipal animal control officer or regional animal control officer shall thereupon make diligent search for any unlicensed dog required to be licensed by § 22-338. The commissioner shall adopt regulations in accordance with the provisions of chapter 54 establishing procedures for such search. If the owner of any such unlicensed dog is not known, the municipal animal control officer or regional animal control officer shall impound such dog. The owning or keeping of an unlicensed or impounded dog and the failure to purchase a license and pay the advertising and redemption fee within one hundred and twenty hours from the time the dog was impounded shall be an infraction.