a. It shall be unlawful for any owner, manager, or supervisor of a retail store or any independently operated department within, to sell or offer or expose for sale, at retail any prepackaged unprocessed or untreated fresh or frozen meat unless at least one of the sides with the greatest surface area of the package is colorless and transparent, exclusive of labeling; which labeling shall not occupy more than ten percent of that side of the package, or six and one quarter (6.25) square inches, whichever is greater. This section shall be applicable solely in those cases where the packaging is performed on the premises of the sale. This section shall not apply to the sale of ground meat.
b. A sign shall be posted at the point of display of any prepackaged unprocessed or untreated fresh or frozen meat, the packaging of which is colorless and transparent on only one side in accordance with the provisions of subdivision a of this section, stating that the retailer shall accept the return of such prepackaged meat found to be unsatisfactory upon the request of a consumer who provides proof of purchase and further stating that the retailer shall either refund the full purchase price or provide a satisfactory replacement for such purchase. The size and wording of such sign shall be determined by rule of the commissioner.