CFR > Title 40 > Chapter I > Subchapter N > Part 436 > Subpart M CFR > Title 40 > Chapter I > Subchapter N > Part 436 > Subpart M – Borax Subcategory Current as of: 2024 | Check for updates | Other versions § 436.130 Applicability; description of the borax subcategory § 436.131 Specialized definitions § 436.132 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available