---
kind: "section"
citation: "21 C.F.R. § 556.430"
title: "21"
number: "556.430"
heading: "Neomycin."
url: "https://uscodex.org/cfr/21/556.430"
---

# §556.430. Neomycin.

- (a) **Acceptable daily intake (ADI).** The ADI for total residue of neomycin is 6 µg/kg of body weight per day.
- (b) **Tolerances.** The tolerances for neomycin are:
  - (1) **Cattle.**
    - (i) **Kidney (target tissue)—** 7.2 ppm.
    - (ii) **Liver—** 3.6 ppm.
    - (iii) **Muscle—** 1.2 ppm.
    - (iv) **Fat—** 7.2 ppm.
    - (v) **Milk—** 0.15 ppm.
  - (2) **Sheep and goats.**
    - (i) **Kidney (target tissue)—** 7.2 ppm.
    - (ii) **Liver—** 3.6 ppm.
    - (iii) **Muscle—** 1.2 ppm.
    - (iv) **Fat—** 7.2 ppm.
    - (v) **Milk—** 0.15 ppm.
  - (3) **Swine.**
    - (i) **Kidney (target tissue)—** 7.2 ppm.
    - (ii) **Liver—** 3.6 ppm.
    - (iii) **Muscle—** 1.2 ppm.
    - (iv) **Fat—** 7.2 ppm.
  - (4) **Turkeys.**
    - (i) **Skin with adhering fat—** 7.2 ppm.
    - (ii) **Liver—** 3.6 ppm.
    - (iii) **Muscle—** 1.2 ppm.
- (c) **Related conditions of use.** See §§ [520.1484](/cfr/21/520.1484.md), [524.1600b](/cfr/21/524.1600b.md), [558.365](/cfr/21/558.365.md), and [558.455](/cfr/21/558.455.md) of this chapter.

## Notes

### Authority

Authority: 21 U.S.C. 342, 360b, 371.

### Source

Source: 84 FR 32993, July 11, 2019, unless otherwise noted.