---
kind: "section"
citation: "21 C.F.R. § 556.316"
title: "21"
number: "556.316"
heading: "Hetacillin."
url: "https://uscodex.org/cfr/21/556.316"
---

# §556.316. Hetacillin.

- (a) [Reserved]
- (b) **Tolerances.** The tolerances for ampicillin (marker residue for hetacillin) are:
  - (1) **Cattle. Edible tissues—** 0.01 ppm.
  - (2) [Reserved]
- (c) **Related conditions of use.** See [§ 526.1130](/cfr/21/526.1130.md) of this chapter.

## Notes

### Amendments

[84 FR 53311, Oct. 7, 2019]

### Authority

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

### Source

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

### Amendments

[84 FR 53311, Oct. 7, 2019]