---
kind: "section"
citation: "21 C.F.R. § 558.195"
title: "21"
number: "558.195"
heading: "Decoquinate."
url: "https://uscodex.org/cfr/21/558.195"
---

# §558.195. Decoquinate.

- (a) **Specifications.** Type A medicated article containing 6 percent decoquinate.
- (b) **Sponsor.** See No. 054771 in [§ 510.600(c)](/cfr/21/510.600.md?p=c) of this chapter.
- (c) **Related tolerances.** See [§ 556.170](/cfr/21/556.170.md) of this chapter.
- (d) **Special considerations.**
  - (1) **Bentonite should not be used in decoquinate feeds.**
  - (2) Type A medicated articles may be used to manufacture dry or liquid Type B cattle (including veal calf), sheep, and goat feeds as in paragraphs [(e)(2)](#e-2) and [(e)(3)](#e-3) of this section.
  - (3) Type C cattle feeds may be manufactured from decoquinate liquid Type B feeds having a pH between 5.0 to 6.5 and containing a suspending agent to maintain a viscosity of not less than 500 centipoises.
- (e) **Conditions of use.** It is used as follows:
  - (1) **Chickens—**
  - (2) **Cattle—**
  - (3) **Minor species—**
  - (4) Decoquinate may also be used in combination with:
    - (i) -(ii) [Reserved]
    - (iii) Chlortetracycline as in [§ 558.128](/cfr/21/558.128.md).
    - (iv) Lincomycin as in [§ 558.325](/cfr/21/558.325.md).

## Notes

### Amendments

[67 FR 72370, Dec. 5, 2002; 68 FR 15372, Mar. 31, 2003; 69 FR 26499, May 13, 2004; 69 FR 52816, Aug. 30, 2004; 69 FR 62407, Oct. 26, 2004; 69 FR 67264, Nov. 17, 2004; 70 FR 2567, Jan. 14, 2005; 78 FR 25183, Apr. 30, 2013; 79 FR 10982, Feb. 27, 2014; 79 FR 13545, Mar. 11, 2014; 79 FR 17860, Mar. 31, 2014; 80 FR 13231, Mar. 13, 2015; 81 FR 17609, Mar. 30, 2016; 81 FR 22525, Apr. 18, 2016; 81 FR 67152, Sept. 30, 2016; 81 FR 95004, Dec. 27, 2016; 83 FR 48947, Sept. 28, 2018; 84 FR 12496, Apr. 2, 2019; 85 FR 18121, Apr. 1, 2020; 86 FR 14822, Mar. 19, 2021; 91 FR 20343, Apr. 16, 2026]

### Authority

Authority: 21 U.S.C. 354, 360b, 360ccc, 360ccc-1, 371.

### Source

Source: 40 FR 13959, Mar. 27, 1975, unless otherwise noted.

### Amendments

[67 FR 72370, Dec. 5, 2002; 68 FR 15372, Mar. 31, 2003; 69 FR 26499, May 13, 2004; 69 FR 52816, Aug. 30, 2004; 69 FR 62407, Oct. 26, 2004; 69 FR 67264, Nov. 17, 2004; 70 FR 2567, Jan. 14, 2005; 78 FR 25183, Apr. 30, 2013; 79 FR 10982, Feb. 27, 2014; 79 FR 13545, Mar. 11, 2014; 79 FR 17860, Mar. 31, 2014; 80 FR 13231, Mar. 13, 2015; 81 FR 17609, Mar. 30, 2016; 81 FR 22525, Apr. 18, 2016; 81 FR 67152, Sept. 30, 2016; 81 FR 95004, Dec. 27, 2016; 83 FR 48947, Sept. 28, 2018; 84 FR 12496, Apr. 2, 2019; 85 FR 18121, Apr. 1, 2020; 86 FR 14822, Mar. 19, 2021; 91 FR 20343, Apr. 16, 2026]