U.S. Code of Federal Regulations

Regulations most recently checked for updates: Jan 21, 2026

All TitlesTitle 40Chapter IPart 415Subpart K - Subpart K—Potassium Metal Production Subcategory
§ 415.110 - Applicability; description of the potassium metal production subcategory.
§ 415.111 - Specialized definitions. [Reserved]
§ 415.112 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
§ 415.113 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
§ 415.114 - [Reserved]
§ 415.115 - New source performance standards (NSPS).
§ 415.116 - Pretreatment standards for new sources (PSNS).
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