---
kind: "section"
citation: "21 C.F.R. § 556.40"
title: "21"
number: "556.40"
heading: "Ampicillin."
url: "https://uscodex.org/cfr/21/556.40"
---

# §556.40. Ampicillin.

- (a) [Reserved]
- (b) **Tolerances.** The tolerances for ampicillin are:
  - (1) **Cattle.** Edible tissues: 0.01 ppm.
  - (2) **Swine.** Edible tissues: 0.01 ppm.
- (c) **Related conditions of use.** See §§ [520.90c](/cfr/21/520.90c.md), [522.90a](/cfr/21/522.90a.md), and [522.90b](/cfr/21/522.90b.md) of this chapter.

## Notes

### Amendments

[84 FR 32993, July 11, 2019, as amended at 85 FR 18120, Apr. 1, 2020]

### 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 85 FR 18120, Apr. 1, 2020]