---
kind: "section"
citation: "40 C.F.R. § 436.140"
title: "40"
number: "436.140"
heading: "Applicability; description of the potash subcategory."
url: "https://uscodex.org/cfr/40/436.140"
---

# §436.140. Applicability; description of the potash subcategory.


The provisions of this subpart are applicable to the processing of potash. Potash obtained from brine lakes is regulated in the saline from brine lakes subcategory ([subpart L](/cfr/40/subpartL.md) of this part).


## Notes

### Authority

Authority: Sec. 306, Federal Water Pollution Control Act, as amended.

### Authority

Authority: Secs. 301, 304 (b) and (c), Federal Water Pollution Control Act, as amended (33 U.S.C. 1251, 1311, 1314 (b) and (c), 86 Stat. 816 et seq., Pub. L. 92-500) (the Act).

### Source

Source: 40 FR 48657, Oct. 16, 1975, unless otherwise noted.