21 C.F.R. § 556.420
Monensin.
Cite as 21 C.F.R. § 556.420 (2026)
(a)
Acceptable daily intake (ADI).
The ADI for total residue of monensin is 12.5 µg/kg of body weight per day.
(b)
Tolerances.
The tolerances for monensin are:
(1)
Cattle.
(i) Liver: 0.10 ppm.
(ii) Muscle, kidney, and fat: 0.05 ppm.
(iii) Milk: Not required.
(2)
Chickens and turkeys.
Edible tissues (excluding eggs): Not required.
(3)
Goats.
Edible tissues (excluding milk): 0.05 ppm.
(4)
Quail.
Edible tissues (excluding eggs): Not required.
(c)
Related conditions of use.
See § 558.355 of this chapter.
- Cross-references to the CFR
- 558.355