U.S. Code of Federal Regulations

Regulations most recently checked for updates: Jan 21, 2026

All TitlesTitle 40Chapter IPart 415Subpart AX - Subpart AX—Potassium Chloride Production Subcategory
§ 415.500 - Applicability; description of the potassium chloride production subcategory.
§ 415.501 - Specialized definitions. [Reserved]
§ 415.502 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
§§ 415.503-415.505 - §[Reserved]
§ 415.506 - Pretreatment standards for new sources (PSNS).
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