CFR > 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 (parts 500 to 590) > PART 556—TOLERANCES FOR RESIDUES OF NEW ANIMAL DRUGS IN FOOD > SUBPART B—Specific Tolerances for Residues of New Animal Drugs (§556.34 to §556.770) > 556.150—Chlortetracycline.

556.150—Chlortetracycline.

(a) Acceptable daily intake (ADI). The ADI for total residues of tetracyclines including chlortetracycline, oxytetracycline, and tetracycline is 25 micrograms per kilogram of body weight per day.
(b) Tolerances. (1) Tolerances are established for the sum of tetracycline residues in tissues of beef cattle, nonlactating dairy cows, calves, swine, sheep, chickens, turkeys, and ducks, of 2 parts per million (ppm) in muscle, 6 ppm in liver, and 12 ppm in fat and kidney.
(2) A tolerance is established for residues of chlortetracycline in eggs of 0.4 ppm.

Code of Federal Regulations

[63 FR 52158, Sept. 30, 1998, as amended at 63 FR 57246, Oct. 27, 1998]