40 CFR Part 415, Subpart AW - Oxygen and Nitrogen Production Subcategory
- § 415.490 Applicability; description of the oxygen and nitrogen production subcategory.
- § 415.491 Specialized definitions. [Reserved]
- § 415.492 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).