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21 U.S.C. 342, 360b, 371.
84 FR 32993, July 11, 2019, unless otherwise noted.
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(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) Milk: 0.22 ppm fenbendazole sulfoxide (marker residue).
(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) [Reserved]
(4) Swine.
(i) Liver (target tissue): 3.2 ppm fenbendazole (marker residue).
(ii) [Reserved]
(5) Turkeys.
(i) Liver (target tissue): 6 ppm fenbendazole sulfone (marker residue).
(ii) [Reserved]
(6) Quail.
(i) Liver (target tissue): 6 ppm fenbendazole sulfone (marker residue).
(ii) [Reserved]
(c) Related conditions of use. See §§ 520.905a, 520.905b, 520.905c, 520.905d, and 558.258 of this chapter.
[84 FR 32993, July 11, 2019, as amended at 86 FR 57998, Oct. 20, 2021; 86 FR 61686, Nov. 8, 2021; 89 FR 85428, Oct. 28, 2024]