---
kind: "section"
citation: "21 C.F.R. § 573.340"
title: "21"
number: "573.340"
heading: "Diatomaceous earth."
url: "https://uscodex.org/cfr/21/573.340"
---

# §573.340. Diatomaceous earth.

- (a) **Identity.** The additive consists of siliceous skeletal material derived from various species of diatoms.
- (b) **Specifications.** The additive shall conform to the following specifications:
- (c) **Uses.** It is used or intended for use as an inert carrier or anticaking agent in animal feeds in an amount not to exceed 2 percent by weight of the total ration.

## Notes

### Authority

Authority: 21 U.S.C. 321, 342, 348.

### Source

Source: 41 FR 38652, Sept. 10, 1976, unless otherwise noted.