StacksVerified U.S. regulatory reference

21 CFR §556.750

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Acceptable daily intake (ADI). The ADI for total residue of virginiamycin is 250 µg/kg of body weight per day.
  2. (b)Tolerances. The tolerances for virginiamycin are:
    1. (1)Cattle. Edible tissues (excluding milk): Not required.
    2. (2)Chickens. Edible tissues (excluding eggs): Not required.
    3. (3)Swine.
      1. (i)Kidney, skin, and fat: 0.4 ppm.
      2. (ii)Liver: 0.3 ppm.
      3. (iii)Muscle: 0.1 ppm.
  3. (c)Related conditions of use. See § 558.635 of this chapter.