Shellstock shall be handled and shipped under such temperature as will keep them alive. Each lot of shellstock shall be shipped in clean containers such as bags, boxes, or barrels so as to prevent spoilage or contamination during shipping. Each lot shall be plainly marked with the name and address of the shipper, the certificate number of the bed from which the oysters, clams, or mussels were obtained, and the date of harvest.
Cal. Code Regs. Tit. 17, § 7741