(a) In order to accomplish the objectives of this article, the commissioner may by reasonable rules exempt from inspection:
(1) Any commercial dealer, provided all carcasses, meat products or poultry products sold or offered for sale by such dealer were slaughtered and/or processed in commercial establishments under state inspection or have been inspected and passed by the United States Department of Agriculture and shall be identified, labeled and sold in normal retail quantities as prescribed by reasonable rules promulgated by the commissioner;