21 CFR § 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.

(c) Related conditions of use. See § 558.635 of this chapter.

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