---
kind: "section"
citation: "21 C.F.R. § 556.735"
title: "21"
number: "556.735"
heading: "Tilmicosin."
url: "https://uscodex.org/cfr/21/556.735"
---

# §556.735. Tilmicosin.

- (a) **Acceptable daily intake (ADI).** The ADI for total residue of tilmicosin is 25 µg/kg of body weight per day.
- (b) **Tolerances.** The tolerances for tilmicosin (marker residue) are:
  - (1) **Cattle.**
    - (i) **Liver (target tissue)—** 1.2 ppm.
    - (ii) **Muscle—** 0.1 ppm.
  - (2) **Sheep.**
    - (i) **Liver (target tissue)—** 1.2 ppm.
    - (ii) **Muscle—** 0.1 ppm.
  - (3) **Swine.**
    - (i) **Liver (target tissue)—** 7.5 ppm.
    - (ii) **Muscle—** 0.1 ppm.
- (c) **Related conditions of use.** See §§ [520.2471](/cfr/21/520.2471.md), [522.2471](/cfr/21/522.2471.md), and [558.618](/cfr/21/558.618.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.