Sulfadimethoxine.
21 C.F.R. § 556.640
in effectEffective: 2024-07-01(a) [Reserved]
(b) Tolerances. The tolerances for sulfadimethoxine are:
(1) Catfish and salmonids. Edible tissues: 0.1 ppm.
(2) Cattle. (i) Edible tissues (excluding milk): 0.1 ppm.
(ii) Milk: 0.01 ppm.
(3) Chickens, turkeys, ducks, and chukar partridges. Edible tissues (excluding eggs): 0.1 ppm.
(c) Related conditions of use. See §§ 520.2220a, 520.2220d, 520.2220e, 522.2220, and 558.575 of this chapter.
Source: eCFRURL: https://www.ecfr.gov/api/versioner/v1/full/2024-07-01/title-21.xmlFetched: 7/26/2026
