---
kind: "section"
citation: "21 C.F.R. § 556.330"
title: "21"
number: "556.330"
heading: "Hygromycin B."
url: "https://uscodex.org/cfr/21/556.330"
---

# §556.330. Hygromycin B.

- (a) [Reserved]
- (b) **Tolerances.** The tolerances for hygromycin B are:
  - (1) **Chickens.** Edible tissues: Zero.
  - (2) **Swine.** Edible tissues: Zero.
- (c) **Related conditions of use.** See [§ 558.274](/cfr/21/558.274.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.