21 C.F.R. § 556.50
Amprolium.
Cite as 21 C.F.R. § 556.50 (2026)
(a) [Reserved]
(b)
Tolerances.
The tolerances for amprolium are:
(1)
Cattle.
(i) Liver, kidney, and muscle: 0.5 ppm.
(ii) Fat: 2.0 ppm.
(2)
Chickens and turkeys.
(i) Liver and kidney: 1 ppm.
(ii) Muscle: 0.5 ppm.
(iii) Eggs:
(A) Egg yolks: 8 ppm.
(B) Whole eggs: 4 ppm.
(3)
Pheasants.
(i) Liver: 1 ppm.
(ii) Muscle: 0.5 ppm.
(c)
Related conditions of use.
See §§ 520.100, 558.55, and 558.58 of this chapter.
- Cross-references to the CFR
- 520.100