(a) With the exception of dead livestock which have died en route and are received with livestock for slaughter at an official establishment, no dead animal or part of the carcass of any livestock that died otherwise than by slaughter may be brought on the premises of an official establishment unless advance permission therefore is obtained from the circuit supervisor.

(b) Under no circumstances shall the carcasses of any animal which has died otherwise than by slaughter, or any part thereof, be brought into any room or compartment in which any edible product is prepared, handled, or stored.