Zeranol.
21 C.F.R. § 556.760
in effectEffective: 2024-07-01(a) Acceptable daily intake (ADI). The ADI for total residue of zeranol is 1.25 µg/kg of body weight per day.
(b) Tolerances. The tolerances for zeranol are:
(1) Cattle. Edible tissues (excluding milk): Not required.
(2) Sheep. Edible tissues (excluding milk): 20 ppb.
(c) Related conditions of use. See § 522.2680 of this chapter.
Source: eCFRURL: https://www.ecfr.gov/api/versioner/v1/full/2024-07-01/title-21.xmlFetched: 7/26/2026
