Code of Federal Regulations > Title 40 > Chapter I > Part 454 > Subpart E

Regulations last checked for updates: Jul 29, 2025

Title 40 - Protection of Environment last revised: Nov 29, 2025

§ 454.50 - Applicability; description of the essential oils subcategory.

§ 454.51 - Specialized definitions.

§ 454.52 - Effluent limitations and guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.

authority: Secs. 301, 304(b) and (c), 306(b), 307(b) and (c), Federal Water Pollution Control Act, as amended (33 U.S.C. 1251,1311,1314,1316,86. 816

source: 41 FR 20511, May 18, 1976, unless otherwise noted.