Subchapter X - Primary Tungsten
- Section NR 274.10 - Applicability; description of the primary tungsten subcategory
- Section NR 274.102 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available
- Section NR 274.103 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable
- Section NR 274.104 - New source performance standards
- Section NR 274.105 - Pretreatment standards for existing sources
- Section NR 274.106 - Pretreatment standards for new sources