---
kind: "section"
citation: "21 C.F.R. § 556.168"
title: "21"
number: "556.168"
heading: "Coumaphos."
url: "https://uscodex.org/cfr/21/556.168"
---

# §556.168. Coumaphos.

- (a) [Reserved]
- (b) **Tolerances.** The tolerances for coumaphos (measured as coumaphos and its oxygen analog, O,O-diethyl O-3- chloro-4-methyl-2-oxo-2 H-1- benzopyran-7-yl phosphate) are:
  - (1) **Chickens.**
    - (i) **Edible tissues (excluding eggs)—** 1 ppm.
    - (ii) **Eggs—** 0.1 ppm.
  - (2) [Reserved]
- (c) **Related conditions of use.** See [§ 558.185](/cfr/21/558.185.md) of this chapter.

## Notes

### Amendments

[86 FR 14821, Mar. 19, 2021]

### Authority

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

### Source

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

### Amendments

[86 FR 14821, Mar. 19, 2021]