StacksVerified U.S. regulatory reference

21 CFR §556.510

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)[Reserved]
  2. (b)Tolerances. The tolerances for penicillin are:
    1. (1)Cattle.
      1. (i)Edible tissues (excluding milk): 0.05 ppm.
      2. (ii)Milk: Zero.
    2. (2)Chickens. Edible tissues: Zero.
    3. (3)Pheasants and quail. Edible tissues: Zero.
    4. (4)Sheep and swine. Edible tissues: Zero.
    5. (5)Turkeys. Edible tissues (excluding eggs): 0.01 ppm.
  3. (c)Related conditions of use. See §§ 520.1696a, 522.1696a, 522.1696b, 526.1696, 526.1697, and 526.1698 of this chapter.