---
kind: "section"
citation: "40 C.F.R. § 410.21"
title: "40"
number: "410.21"
heading: "Specialized definitions."
url: "https://uscodex.org/cfr/40/410.21"
---

# §410.21. Specialized definitions.


In addition to the definitions set forth in [40 CFR part 401](/cfr/40/part401.md) and [§ 410.01](/cfr/40/410.01.md) of this part, the following definition applies to this subpart:

- (a) The term fiber shall mean the dry wool and other fibers as received at the wool finsihing mill for processing into wool and blended products.
- (b) [Reserved]

## Notes

### Authority

Authority: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) (the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), and 1361; 86 Stat. 186 et seq., Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217.

### Source

Source: 47 FR 38819, Sept. 2, 1982, unless otherwise noted.