Subchapter XXIII - Primary Nickel and Cobalt
- Section NR 274.23 - Applicability; description of the primary nickel and cobalt subcategory
- Section NR 274.232 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available
- Section NR 274.233 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable
- Section NR 274.234 - New source performance standards
- Section NR 274.236 - Pretreatment standards for new sources