(a) Acceptable daily intake (ADI). The ADI for total residue of zilpaterol is 0.083 µg/kg of body weight per day.
(b) Tolerances. The tolerance for zilpaterol freebase (marker residue) is:
(1) Cattle. (i) Liver (target tissue): 12 ppb.
(ii) Muscle: 10 ppb.
(2) [Reserved]
(c) Related conditions of use. See § 558.665 of this chapter.
[84 FR 32993, July 11, 2019, as amended at 85 FR 18121, Apr. 1, 2020]