Tap any paragraph to write a margin note. Your notes collect in the Desk below the text and file under cases with @. The side-by-side margin rail opens on a larger screen.

§
Marginalia
Code · CFR · Title 21 — Food and Drugs · Part 573 — Food Additives Permitted in Feed and Drinking Water of Animals · § 573.340

§ 573.340. Diatomaceous earth.

84 words·~1 min read·/us/cfr/t21/s§ 573.340

A research copy — for the controlling text, always check the official state or federal source. Not legal advice.

(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: Lead, not more than 15 parts per million. Arsenic (as As), not more than 20 parts per million Fluorine, not more than 600 parts per million.
(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.
Connections4 cite this
Citation graph
cites case law
§ 573.340
Diatomaceous earth.
Fed. Reg.×4
Cites 0Cited by 4 across 1 source
★   the supreme law of the land   ★
Don't Tread on Me
E Pluribus Unum — out of many, one

"If you don't know your rights, you don't have any."

Marginalia · a citizen's law index
A research desk, not legal advice. Always read the cited source before relying on a summary.
Questions or an issue? support@self-law.org
disclaimerMarginalia is a research index, not a law firm. Nothing on this site is legal, tax, or financial advice and no attorney–client relationship is formed by using it. Statutes, regulations, and case law change; summaries, search results, AI output, and member posts may be incomplete, out of date, or wrong. Any interpretation drawn from material on this site should be validated by a licensed attorney in your jurisdiction before you act on it.