Regulations last checked for updates: Feb 12, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026
§ 417.130 - Applicability; description of the chlorosulfonic acid sulfation subcategory.

The provisions of this subpart are applicable to discharges resulting from sulfation of alcohols, alkylphenols and alcohol ethoxylates utilizing chlorosulfonic acid as the sulfating agent.

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 417.130