---
kind: "section"
citation: "21 C.F.R. § 556.660"
title: "21"
number: "556.660"
heading: "Sulfamerazine."
url: "https://uscodex.org/cfr/21/556.660"
---

# §556.660. Sulfamerazine.

- (a) [Reserved]
- (b) **Tolerances.** The tolerance for sulfamerazine is:
  - (1) **Trout.** Edible tissues: Zero.
  - (2) [Reserved]
- (c) **Related conditions of use.** See §§ [520.2218](/cfr/21/520.2218.md) and [558.582](/cfr/21/558.582.md) of this chapter.

## Notes

### Amendments

[84 FR 32993, July 11, 2019, as amended at 85 FR 18121, 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 18121, Apr. 1, 2020]