21 CFR § 556.610
Streptomycin
June 25, 2020
(a) [Reserved]
(b) Tolerances. The tolerances for streptomycin are:
(1) Cattle and swine.
(i) Kidney: 2.0 ppm.
(ii) Other edible tissues (excluding milk): 0.5 ppm.
(2) Chickens.
(i) Kidney: 2.0 ppm.
(ii) Other edible tissues (excluding eggs): 0.5 ppm.
(c) Related conditions of use. See §520.2158 of this chapter.