[Code of Federal Regulations]
[Title 21, Volume 6]
[Revised as of January 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR556.275]

[Page 345-346]
 
                        TITLE 21--FOOD AND DRUGS
 
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN 
                          SERVICES (CONTINUED)
 
PART 556--TOLERANCES FOR RESIDUES OF NEW ANIMAL DRUGS IN FOOD--Table of Contents
 
     Subpart B--Specific Tolerances for Residues of New Animal Drugs
 
Sec.  556.275  Fenbendazole.

    (a) Acceptable daily intake (ADI). The ADI for total residues of 
fenbendazole is 40 micrograms per kilogram of body weight per day.

[[Page 346]]

    (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]