21 C.F.R. § 556.275 Fenbendazole.
Title 21 - Food and Drugs
(a) Acceptable daily intake (ADI). The ADI for total residues of fenbendazole is 40 micrograms per kilogram of body weight per day. (b) Tolerances—(1) Cattle—(i) Liver (the target tissue). The tolerance for parent fenbendazole (the marker residue) is 0.8 part per million (ppm). (ii) Muscle. The tolerance for parent fenbendazole (the marker residue) is 0.4 ppm. (iii) Milk. The tolerance for fenbendazole sulfoxide metabolite (the marker residue in cattle milk) is 0.6 ppm. (2) Swine—(i) Liver (the target tissue). The tolerance for parent fenbendazole (the marker residue) is 6 ppm. (ii) Muscle. The tolerance for parent fenbendazole (the marker residue) is 2 ppm. (3) Turkeys—(i) Liver (the target tissue). The tolerance for fenbendazole sulfone (the marker residue) is 6 ppm. (ii) Muscle. The tolerance for fenbendazole sulfone (the marker residue) is 2 ppm. (4) Goats—(i) Liver (the target tissue). The tolerance for parent fenbendazole (the marker residue) is 0.8 ppm. (ii) Muscle. The tolerance for parent fenbendazole (the marker residue) is 0.4 ppm. [65 FR 20733, Apr. 18, 2000, as amended at 65 FR 41588, July 6, 2000; 65 FR 50914, Aug. 22, 2000]
Title 21: Food and Drugs
PART 556—TOLERANCES FOR RESIDUES OF NEW ANIMAL DRUGS IN FOOD
Subpart B—Specific Tolerances for Residues of New Animal Drugs
§ 556.275 Fenbendazole.

