21 C.F.R. § 556.283 Florfenicol.
Title 21 - Food and Drugs
(a) Acceptable daily intake (ADI). The ADI for total residues of florfenicol is 10 micrograms per kilogram of body weight per day. (b) Tolerances—(1) Cattle—(i) Liver (the target tissue). The tolerance for florfenicol amine (the marker residue) is 3.7 parts per million (ppm). (ii) Muscle. The tolerance for florfenicol amine (the marker residue) is 0.3 ppm. (2) Swine—(i) Liver (the target tissue). The tolerance for parent florfenicol (the marker residue) is 2.5 ppm. (ii) Muscle. The tolerance for parent florfenicol (the marker residue) is 0.2 ppm. (3) Catfish. The tolerance for florfenicol amine (the marker residue) in muscle (the target tissue) is 1 ppm. (c) Related conditions of use. See §§520.955, 522.955, and 558.261 of this chapter. [63 FR 41191, Aug. 3, 1998, as amended at 67 FR 78357, Dec. 24, 2002; 70 FR 70046, Nov. 21, 2005]
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
§ 556.283 Florfenicol.
