StacksVerified U.S. regulatory reference

21 CFR §556.670

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)[Reserved]
  2. (b)Tolerances. The tolerances for sulfamethazine are:
    1. (1)Cattle. Edible tissues (excluding milk): 0.1 ppm.
    2. (2)Chickens and turkeys. Edible tissues (excluding eggs): 0.1 ppm.
    3. (3)Swine. Edible tissues: 0.1 ppm.
  3. (c)Related conditions of use. See §§ 520.445, 520.2218, 520.2260a, 520.2260b, 520.2260c, 520.2261a, 520.2261b, 522.2260, 558.140, and 558.630 of this chapter.