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e-CFR data is current as of February 25, 2021

Title 21Chapter ISubchapter EPart 556Subpart B → §556.275


Title 21: Food and Drugs
PART 556—TOLERANCES FOR RESIDUES OF NEW ANIMAL DRUGS IN FOOD
Subpart B—Specific Tolerances for Residues of Approved and Conditionally Approved New Animal Drugs


§556.275   Fenbendazole.

(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.

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