Electronic Code of Federal Regulations

We invite you to try out our new beta eCFR site at https://ecfr.federalregister.gov. We have made big changes to make the eCFR easier to use. Be sure to leave feedback using the Feedback button on the bottom right of each page!

e-CFR data is current as of April 12, 2021

Title 21 → Chapter I → Subchapter E → Part 556 → Subpart B → §556.750

Browse Previous | Browse Next

Title 21: Food and Drugs
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

§556.750 Virginiamycin.

(a) Acceptable daily intake (ADI). The ADI for total residue of virginiamycin is 250 µg/kg of body weight per day.

(b) Tolerances. The tolerances for virginiamycin are:

(1) Cattle. Edible tissues (excluding milk): Not required.

(2) Chickens. Edible tissues (excluding eggs): Not required.

(3) Swine. (i) Kidney, skin, and fat: 0.4 ppm.

(ii) Liver: 0.3 ppm.

(iii) Muscle: 0.1 ppm.

[84 FR 32993, July 11, 2019, as amended at 85 FR 18121, Apr. 1, 2020]

Need assistance?