Sulfamethazine.

(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 §§ 520.445, 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; 86 FR 13188, Mar. 8, 2021]