9 C.F.R. § 78.7
(a) Destination. Brucellosis reactor cattle may be moved interstate only for immediate slaughter as follows:
(3) From a farm of origin directly to a specifically approved stockyard approved to receive brucellosis reactors and then
(b) Identification. Brucellosis reactor cattle must be individually identified prior to moving interstate by attaching to the left ear a metal tag bearing a serial number and the inscription “U.S. Reactor,” or a metal tag bearing a serial number designated by the State animal health official for identifying brucellosis reactors, and must be:
(e) Segregation en route. Brucellosis reactor cattle shall not be moved interstate in any means of conveyance containing animals which are not brucellosis reactors unless all the animals are for immediate slaughter or unless the brucellosis reactor cattle are kept separate from the other animals by a partition securely affixed to the sides of the means of conveyance.
(Approved by the Office of Management and Budget under control number 0579-0051)
[51 FR 32580, Sept. 12, 1986, as amended at 59 FR 67133, Dec. 29, 1994; 60 FR 48367, Sept. 19, 1995]