Regulations last checked for updates: Feb 12, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026
§ 417.10 - Applicability; description of the soap manufacturing by batch kettle subcategory.

The provisions of this subpart are applicable to discharges resulting from the operations in which neat soap is produced through saponification of animal and vegetable fats and oils by boiling in kettles.

authority: Secs. 301, 304 (b) and (c), 306 (b) and (c), and 307(c) of the Federal Water Pollution Control Act as amended, (the Act); 33 U.S.C. 1251,1311,1314,1316,86. 816
source: 39 FR 13372, Apr. 12, 1974, unless otherwise noted.
cite as: 40 CFR 417.10