GroundRules
21 CFR 556.428: Narasin.
Where this section sits in the code
- Title 21—Food and Drugs
- CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES
- SUBCHAPTER E—ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS
- PART 556—TOLERANCES FOR RESIDUES OF NEW ANIMAL DRUGS IN FOOD
- Subpart B—Specific Tolerances for Residues of Approved and Conditionally Approved New Animal Drugs
(a) Acceptable daily intake (ADI). The ADI for total residue of narasin is 5 µg/kg of body weight per day.
(b) Tolerances. The tolerance for narasin (marker residue) is:
(1) Chickens. Abdominal fat (target tissue): 480 ppb.
(2) [Reserved]
(c) Related conditions of use. See §§ 558.363 and 558.364 of this chapter.
Collected 2026-08-27T02:24:47Z. Source file · JSON