40 CFR Subpart AW - Subpart AW—Oxygen and Nitrogen Production Subcategory
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- § 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).