U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
(a) Acceptable daily intake (ADI). The ADI for total residue of gentamicin is 60 µg/kg of body weight per day.
(b) Tolerances. The tolerances for gentamicin are:
(1) Chickens and turkeys. Edible tissues (excluding eggs): 0.1 ppm.
(2) Swine. (i) Liver: 0.3 ppm.
(ii) Kidney (target tissue): 0.4 ppm gentamicin (marker residue).
(iii) Fat: 0.4 ppm.
(iv) Muscle: 0.1 ppm.
(c) Related conditions of use. See §§ 520.1044a, 520.1044b, 520.1044c, 522.1044, 524.1044e, and 529.1044b of this chapter.
