Subchapter XIII - Potassium sulfate
- Section NR 230.13 - Applicability; description of the potassium sulfate subcategory
- Section NR 230.132 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available
- Section NR 230.133 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable
- Section NR 230.134 - New source performance standards
- Section NR 230.136 - Pretreatment standards for new sources