(b) Tolerances. The tolerances for streptomycin are:

1. (1) Cattle and swine.

   1. (i) Kidney: 2.0 ppm.
   2. (ii) Other edible tissues (excluding milk): 0.5 ppm.

2. (2) Chickens.

   1. (i) Kidney: 2.0 ppm.
   2. (ii) Other edible tissues (excluding eggs): 0.5 ppm.