---
kind: "section"
citation: "40 C.F.R. § 211.205"
title: "40"
number: "211.205"
heading: "Special claims."
url: "https://uscodex.org/cfr/40/211.205"
---

# §211.205. Special claims.

- (a) Any manufacturer wishing to make claims regarding the acoustic effectiveness of a device, other than the Noise Reduction Rating, must be prepared to demonstrate the validity of such claims.
- (b) [Reserved]

## Notes

### Amendments

[44 FR 56139, Sept. 28, 1979, as amended at 47 FR 57716, Dec. 28, 1982]

### Authority

Authority: Sec. 8, Pub. L. 92-574, 86 Stat. 1241 (42 U.S.C. 4907), and additional authority as specified.

### Source

Source: 44 FR 56139, Sept. 28, 1979, unless otherwise noted.

### Source

Source: 44 FR 56127, Sept. 28, 1979, unless otherwise noted.

### Amendments

[44 FR 56139, Sept. 28, 1979, as amended at 47 FR 57716, Dec. 28, 1982]