Means of conveyance, yards, pens, sheds, chutes, or other premises or facilities which have contained cattle of a consignment in which scabies is found shall be treated within 72 hours of use and prior to further use in the required concentration with a permitted dip listed in Sec. 73.10 under supervision of a State or Federal inspector or an accredited veterinarian. [38 FR 21996, Aug. 15, 1973, as amended at 41 FR 5384, Feb. 6, 1976]