CFR - Code of Federal Regulations Title 21

The information on this page is current as of Dec 22, 2023.

For the most up-to-date version of CFR Title 21, go to the Electronic Code of Federal Regulations (eCFR).

[Code of Federal Regulations]

[Title 21, Volume 6]

[CITE: 21CFR556.275]

TITLE 21--FOOD AND DRUGS

CHAPTER I--FOOD AND DRUG ADMINISTRATION
DEPARTMENT OF HEALTH AND HUMAN SERVICES

SUBCHAPTER E - ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS

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

Sec. 556.275 Fenbendazole.

(a) Acceptable daily intake (ADI). The ADI for total residue of fenbendazole is 40 [micro]g/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]

(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]