The official marks for use in post-mortem inspection and identification of adulterated products, insanitary equipment and facilities are:
(a)A paper tag (a portion of Form MP-35) bearing the legend “U.S. Retained” for use on poultry or poultry products under this section.
(b)A paper tag (another portion of Form C&MS 510) bearing the legend “U.S. Rejected” for use on equipment, utensils, rooms and compartments under this section.