21 CFR § 556.670
Sulfamethazine
June 25, 2020
(a) [Reserved]
(b) Tolerances. The tolerances for sulfamethazine are:
(1) Cattle. Edible tissues (excluding milk): 0.1 ppm.
(2) Chickens and turkeys. Edible tissues (excluding eggs): 0.1 ppm.
(3) Swine. Edible tissues: 0.1 ppm.
(c) Related conditions of use. See §§520.2218, 520.2260a, 520.2260b, 520.2260c, 520.2261a, 520.2261b, 522.2260, 558.140, and 558.630 of this chapter.
[84 FR 32993, July 11, 2019, as amended at 85 FR 18121, Apr. 1, 2020]