9 CFR 312.6 - Official marks and devices in connection with post-mortem inspection and identification of adulterated products and insanitary equipment and facilities.
(3) The “U.S. Rejected” mark which is used to identify insanitary buildings, rooms, or equipment as prescribed in part 416, section 6, of this chapter and is applied by means of a paper tag (Form MP-35) bearing the legend “U.S. Rejected.”
(5) The “U.S. Inspected and Condemned” mark shall be applied to products condemned as prescribed in part 310 by means of a brand and is in the following form:
(b) The “U.S. Retained” and “U.S. Rejected” tags, and all other brands, stamps, labels, and other devices approved by the Administrator and bearing any official mark prescribed in paragraph (a) of this section, shall be official devices for purposes of the Act.