Regulations last checked for updates: Feb 12, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026
§ 406.50 - Applicability; description of the normal rice milling subcategory.

The provisions of this subpart are applicable to discharges resulting from the process in which rice is cleaned and milled by dry processes.

authority: Secs. 301, 304 (b) and (c), 306 (b) and (c), 307(c) of the Federal Water Pollution Control Act, as amended; 33 U.S.C. 1251,1311,1314,1316,1317; 86 Stat. 816
source: 39 FR 10513, Mar. 20, 1974, unless otherwise noted.
cite as: 40 CFR 406.50