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Regulations last checked for updates: Feb 11, 2026
Title 40 - Protection of Environment last revised: Dec 22, 2026
All Titles
Title 40
Chapter I
Part 414
Subpart I - Subpart I—Direct Discharge Point Sources That Use End-of-Pipe Biological Treatment
§ 414.90 - Applicability; description of the subcategory of direct discharge point sources that use end-of-pipe biological treatment.
§ 414.91 - Toxic pollutant effluent limitations and standards for direct discharge point sources that use end-of-pipe biological treatment.
source:
52 FR 42568, Nov. 5, 1987, unless otherwise noted.
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