Articles intended for a fair under the provisions of the Act are subject to the invoice requirements of subpart F, part 141 of this chapter. (R.S. 251, as amended, secs. 481, 484, 624, 46 Stat. 719, 722, as amended, 759 (19 U.S.C. 66, 1481, 1484, 1624)) [T.D. 85-39, 50 FR 9612, Mar. 11, 1985]