CFR > Title 40 > Chapter I > Subchapter N > Part 415 > Subpart AW CFR > Title 40 > Chapter I > Subchapter N > Part 415 > Subpart AW – Oxygen and Nitrogen Production Subcategory Current as of: 2024 | Check for updates | Other versions § 415.490 Applicability; description of the oxygen and nitrogen production subcategory § 415.492 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT)
