U.S. Code of Federal Regulations

Regulations most recently checked for updates: Sep 29, 2023

All TitlesTitle 40Chapter IPart 401 - PART 401—GENERAL PROVISIONS
§ 401.10 - Scope and purpose.
§ 401.11 - General definitions.
§ 401.12 - Law authorizing establishment of effluent limitations guidelines for existing sources, standards of performance for new sources and pretreatment standards of new and existing sources.
§ 401.13 - Test procedures for measurement.
§ 401.14 - Cooling water intake structures.
§ 401.15 - Toxic pollutants.
§ 401.16 - Conventional pollutants.
§ 401.17 - pH Effluent limitations under continuous monitoring.
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