21 C.F.R. § 556.344 Ivermectin.
Title 21 - Food and Drugs
(a) Acceptable daily intake (ADI). The ADI for total residues of ivermectin is 1 microgram per kilogram of body weight per day. (b) Tolerances—(1) Liver. A tolerance is established for 22,23-dihydroavermectin B1a (marker residue) in liver (target tissue) as follows: (i) Cattle. 100 parts per billion. (ii) Swine. 20 parts per billion. (iii) Sheep. 30 parts per billion. (iv) Reindeer. 15 parts per billion. (v) American bison. 15 parts per billion. (2) Muscle. Muscle residues are not indicative of the safety of other edible tissues. A tolerance is established for 22,23-dihydroavermectin B1a (marker residue) in muscle as follows: (i) Swine. 20 parts per billion. (ii) Cattle. 10 parts per billion. [63 FR 54352, Oct. 9, 1998, as amended at 64 FR 26671, May 17, 1999]
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
§ 556.344 Ivermectin.
