U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 28, 2025
(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.
(c) Related conditions of use. See § 558.635 of this chapter.
