21 C.F.R. § 556.670 Sulfamethazine.
Title 21 - Food and Drugs
A tolerance of 0.1 part per million is established for negligible residues of sulfamethazine in the uncooked edible tissues of chickens, turkeys, cattle, and swine. [47 FR 25323, June 11, 1982]
Title 21: Food and Drugs
PART 556—TOLERANCES FOR RESIDUES OF NEW ANIMAL DRUGS IN FOOD
Subpart B—Specific Tolerances for Residues of New Animal Drugs
§ 556.670 Sulfamethazine.