---
kind: "section"
citation: "21 C.F.R. § 556.710"
title: "21"
number: "556.710"
heading: "Testosterone."
url: "https://uscodex.org/cfr/21/556.710"
---

# §556.710. Testosterone.

- (a) [Reserved]
- (b) **Residues.** Residues of testosterone are not permitted in excess of the following increments above the concentrations of testosterone naturally present in untreated animals:
  - (1) **Cattle.**
    - (i) **Fat—** 2.6 ppb.
    - (ii) **Kidney—** 1.9 ppb.
    - (iii) **Liver—** 1.3 ppb.
    - (iv) **Muscle—** 0.64 ppb.
  - (2) [Reserved]
- (c) **Related conditions of use.** See [§ 522.2343](/cfr/21/522.2343.md) of this chapter.

## Notes

### Amendments

[84 FR 32993, July 11, 2019, as amended at 87 FR 10970, Feb. 28, 2022]

### Authority

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

### Source

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

### Amendments

[84 FR 32993, July 11, 2019, as amended at 87 FR 10970, Feb. 28, 2022]