Zoalene.
21 C.F.R. § 556.770
in effectEffective: 2024-07-01(a) [Reserved]
(b) Tolerances. The tolerances for zoalene and its metabolite 3-amino-5-nitro-o-toluamide are:
(1) Chickens. (i) Liver and kidney: 6 ppm.
(ii) Muscle: 3 ppm.
(iii) Fat: 2 ppm.
(2) Turkeys. Liver and muscle: 3 ppm.
(c) Related conditions of use. See § 558.680 of this chapter.
Source: eCFRURL: https://www.ecfr.gov/api/versioner/v1/full/2024-07-01/title-21.xmlFetched: 7/26/2026