(1) Conveyances for the transportation of animal carcasses, or parts of animal carcasses, must be provided with an all metal or metal-lined box or tank which is watertight. The box must have a metal or metal-lined endgate constructed so as to fit firmly against the box or tank.

(2) All vehicles must be thoroughly washed with water having a temperature of at least 170�F., and disinfected with an approved disinfectant immediately after unloading at the rendering plant or collection station.