Mass. Gen. Laws ch. 94, § 71: Date of receipt of food in cold storage; marking on containers

Section 71. The date of receipt into cold storage shall be plainly marked either upon the containers in which any articles of food deposited in such storage are packed, or, if not packed in containers, on or in connection with all such articles, except fish. When deposited in cold storage, all articles of food which have been previously stored in any other state or country shall be plainly marked, as above provided, with the date of their original deposit in cold storage.