StacksVerified U.S. regulatory reference

21 CFR §556.430

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 neomycin is 6 µg/kg of body weight per day.
  2. (b)Tolerances. The tolerances for neomycin are:
    1. (1)Cattle.
      1. (i)Kidney (target tissue): 7.2 ppm.
      2. (ii)Liver: 3.6 ppm.
      3. (iii)Muscle: 1.2 ppm.
      4. (iv)Fat: 7.2 ppm.
      5. (v)Milk: 0.15 ppm.
    2. (2)Sheep and goats.
      1. (i)Kidney (target tissue): 7.2 ppm.
      2. (ii)Liver: 3.6 ppm.
      3. (iii)Muscle: 1.2 ppm.
      4. (iv)Fat: 7.2 ppm.
      5. (v)Milk: 0.15 ppm.
    3. (3)Swine.
      1. (i)Kidney (target tissue): 7.2 ppm.
      2. (ii)Liver: 3.6 ppm.
      3. (iii)Muscle: 1.2 ppm.
      4. (iv)Fat: 7.2 ppm.
    4. (4)Turkeys.
      1. (i)Skin with adhering fat: 7.2 ppm.
      2. (ii)Liver: 3.6 ppm.
      3. (iii)Muscle: 1.2 ppm.
  3. (c)Related conditions of use. See §§ 520.1484, 524.1600b, 558.365, and 558.455 of this chapter.