21 CFR § 556.226 - Enrofloxacin.
(a)Acceptable daily intake (ADI). The ADI for total residues of enrofloxacin is 3 micrograms per kilogram of body weight per day.
(b)Tolerances. The tolerances for enrofloxacin are:
(i)Liver (target tissue). 0.1 part per million (ppm) desethylene ciprofloxacin (the marker residue).
(i)Liver (target tissue). 0.5 ppm enrofloxacin (the marker residue).
(c)Related conditions of use. See § 522.812 of this chapter.