(1)    The department, as a means of enforcing the standard for the grade of any food product or farm product or for any receptacle therefor, may, by general order, after public hearing, require any such product or receptacle to bear the official certificate of an inspector licensed under s. 93.11.

   (2)   Whenever the department has required any product or receptacle to bear the official certificate of an inspector licensed under s. 93.11, no person marketing or having in his or her possession for commercial purposes any such product or receptacle shall remove, mutilate or alter the official certificate thereon or represent such product or receptacle, unless in a manner authorized by the department, as being of any grade other than the grade designated by the official certificate thereon, except as to products or receptacles included in s. 93.09 (2) and (3); and no person shall market or have in his or her possession for commercial purposes any such product or receptacle unless such product or receptacle bears the official certificate of an inspector licensed under s. 93.11, except as to products or receptacles included in s. 93.09 (2), (3) and (4); provided, that such a product or receptacle may be marketed or had in possession without an official certificate issued at the point of shipment if such product or receptacle is destined for shipment to a point within the state, where the shipper has arranged for the issuance of an official certificate; provided, further, that possession under this section, shall not include possession by a carrier or other bailee.