---
kind: "section"
citation: "40 C.F.R. § 421.140"
title: "40"
number: "421.140"
heading: "Applicability: Description of the primary antimony subcategory."
url: "https://uscodex.org/cfr/40/421.140"
---

# §421.140. Applicability: Description of the primary antimony subcategory.


The provisions of this subpart are applicable to discharges resulting from the production of antimony at primary antimony facilities.


## Notes

### Source

Source: 50 FR 38345, Sept. 20, 1985, unless otherwise noted.

### Authority

Authority: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), 308 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) and the Water Quality Act of 1987 (the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), 1318 and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217; 101 Stat. 7, Pub. L. 100-4.

### Source

Source: 49 FR 8790, Mar. 8, 1984, unless otherwise noted.