Subchapter IV - Precious Metals
- Section NR 273.04 - Applicability; description of the precious metals subcategory
- Section NR 273.041 - Discharge prohibitions
- Section NR 273.042 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available
- Section NR 273.043 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable
- Section NR 273.044 - New source performance standards
- Section NR 273.045 - Pretreatment standards for existing sources
- Section NR 273.046 - Pretreatment standards for new sources