---
kind: "section"
citation: "21 C.F.R. § 184.1563"
title: "21"
number: "184.1563"
heading: "Ozone."
url: "https://uscodex.org/cfr/21/184.1563"
---

# §184.1563. Ozone.

- (a) **Ozone (O<I>3</I>, CAS Reg.** No. 10028-15-6) is an unstable blue gas with a pungent, characteristic odor, which occurs freely in nature, It is produced commercially by passing electrical discharges or ionizing radiation through air or oxygen.
- (b) The ingredient must be of a purity suitable for its intended use in accordance with [§ 170.30(h)(1)](/cfr/21/170.30.md?p=h-1) of this chapter.
- (c) In accordance with [§ 184.1(b)(2)](/cfr/21/184.1.md?p=b-2), the ingredient is used to treat food only within the following specific limitations:

## Notes

### Amendments

[47 FR 50210, Nov. 5, 1982, as amended at 60 FR 57130, Nov. 13, 1995]

### Authority

Authority: 21 U.S.C. 321, 342, 348, 371.

### Source

Source: 42 FR 14653, Mar 15, 1977, unless otherwise noted.

### Amendments

[47 FR 50210, Nov. 5, 1982, as amended at 60 FR 57130, Nov. 13, 1995]