(a) Acceptable daily intake (ADI). The ADI for total residue of fenbendazole is 40 µg/kg of body weight per day.

(b) Tolerances. The tolerances for fenbendazole are:

(1) Cattle.

(i) Liver (target tissue): 0.8 ppm fenbendazole (marker residue).

(ii) Muscle: 0.4 ppm fenbendazole.

(iii) Milk: 0.6 ppm fenbendazole sulfoxide.

(2) Chickens.

(i) Liver (target tissue): 5.2 ppm fenbendazole sulfone (marker residue).

(ii) Eggs: 1.8 ppm fenbendazole sulfone (marker residue).

(3) Goats.

(i) Liver (target tissue): 0.8 ppm fenbendazole (marker residue).

(ii) Muscle: 0.4 ppm fenbendazole.

(4) Swine.

(i) Liver (target tissue): 3.2 ppm fenbendazole (marker residue).

(ii) Muscle: 2 ppm fenbendazole.

(5) Turkeys.

(i) Liver (target tissue): 6 ppm fenbendazole sulfone (marker residue).

(ii) Muscle: 2 ppm fenbendazole sulfone.

(c) Related conditions of use. See §§520.905a, 520.905c, 520.905d, 520.905e, and 558.258 of this chapter.