StacksVerified U.S. regulatory reference

21 CFR §573.340

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Identity. The additive consists of siliceous skeletal material derived from various species of diatoms.
  2. (b)Specifications. The additive shall conform to the following specifications:
  3. (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.