(b) Tolerances. The tolerances for dihydrostreptomycin are:

1. (1) Cattle.

   1. (i) Kidney: 2.0 ppm.
   2. (ii) Other edible tissues (excluding milk): 0.5 ppm.
   3. (iii) Milk: 0.125 ppm.

2. (2) Swine.

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