---
kind: "section"
citation: "21 C.F.R. § 556.517"
title: "21"
number: "556.517"
heading: "Poloxalene."
url: "https://uscodex.org/cfr/21/556.517"
---

# §556.517. Poloxalene.

- (a) [Reserved]
- (b) **Tolerances.** The tolerance for poloxalene is:
  - (1) **Cattle.** Edible tissues (excluding milk): Not required.
  - (2) [Reserved]
- (c) **Related conditions of use.** See §§ [520.1840](/cfr/21/520.1840.md) and [558.464](/cfr/21/558.464.md) of this chapter.

## Notes

### Amendments

[84 FR 32993, July 11, 2019, as amended at 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

[84 FR 32993, July 11, 2019, as amended at 86 FR 14821, Mar. 19, 2021]