Sulfamethazine.
21 C.F.R. § 556.670
in effectEffective: 2024-07-01(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.
Source: eCFRURL: https://www.ecfr.gov/api/versioner/v1/full/2024-07-01/title-21.xmlFetched: 7/26/2026
