---
kind: "section"
citation: "21 C.F.R. § 556.273"
title: "21"
number: "556.273"
heading: "Famphur."
url: "https://uscodex.org/cfr/21/556.273"
---

# §556.273. Famphur.

- (a) [Reserved]
- (b) **Tolerances.** The tolerance for famphur including its oxygen analog is:
  - (1) **Cattle.** Edible tissues (excluding milk): 0.1 ppm.
  - (2) [Reserved]
- (c) **Related conditions of use.** See §§ [520.1242g](/cfr/21/520.1242g.md), [524.900](/cfr/21/524.900.md), and [558.254](/cfr/21/558.254.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.