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Regulations last checked for updates: Jul 29, 2025
Title 40 - Protection of Environment last revised: Nov 29, 2025
All Titles
Title 40
Chapter I
Part 432
Subpart E - Subpart E—Small Processors
§ 432.50 - Applicability.
§ 432.51 - Special definitions.
§ 432.52 - Effluent limitations attainable by the application of the best practicable control technology currently available (BPT).
§ 432.54 - Pretreatment standards for existing sources (PSES). [Reserved]
§ 432.55 - New source performance standards (NSPS).
§ 432.56 - Pretreatment standards for new sources (PSNS). [Reserved]
§ 432.57 - Effluent limitations attainable by the application of the best control technology for conventional pollutants (BCT).
authority:
33 U.S.C. 1311
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