---
kind: "section"
citation: "21 C.F.R. § 556.350"
title: "21"
number: "556.350"
heading: "Levamisole."
url: "https://uscodex.org/cfr/21/556.350"
---

# §556.350. Levamisole.

- (a) [Reserved]
- (b) **Tolerances.** The tolerances for levamisole are:
  - (1) **Cattle.** Edible tissues (excluding milk): 0.1 ppm.
  - (2) **Sheep.** Edible tissues (excluding milk): 0.1 ppm.
  - (3) **Swine.** Edible tissues: 0.1 ppm.
- (c) **Related conditions of use.** See §§ [520.1242a](/cfr/21/520.1242a.md), [520.1242b](/cfr/21/520.1242b.md), [520.1242d](/cfr/21/520.1242d.md), [520.1242e](/cfr/21/520.1242e.md), [520.1242f](/cfr/21/520.1242f.md), [520.1242g](/cfr/21/520.1242g.md), [522.1242](/cfr/21/522.1242.md), and [524.1240](/cfr/21/524.1240.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.