NR 230.11 Applicability; description of the potassium metal subcategory. NR 230.112 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. NR 230.113 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. NR 230.114 New source performance standards. NR 230.116 Pretreatment standards for new sources. Subchapter XII — Potassium dichromate
NR 230.12 Applicability; description of the potassium dichromate subcategory. NR 230.122 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. NR 230.123 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. NR 230.124 New source performance standards. NR 230.125 Pretreatment standards for existing sources. NR 230.126 Pretreatment standards for new sources. Subchapter XIII — Potassium sulfate
NR 230.13 Applicability; description of the potassium sulfate subcategory. NR 230.132 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. NR 230.133 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. NR 230.134 New source performance standards. NR 230.136 Pretreatment standards for new sources. Subchapter XIV — Sodium bicarbonate
NR 230.14 Applicability; description of the sodium bicarbonate subcategory. NR 230.142 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. NR 230.143 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. NR 230.144 New source performance standards. NR 230.146 Pretreatment standards for new sources. Subchapter XVI — Sodium chloride
NR 230.16 Applicability; description of the sodium chloride subcategory. NR 230.162 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. NR 230.163 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. NR 230.164 New source performance standards. NR 230.166 Pretreatment standards for new sources. Subchapter XVII — Sodium dichromate and sodium sulfate
NR 230.17 Applicability; description of the sodium dichromate and sodium sulfate subcategory. NR 230.172 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. NR 230.173 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. NR 230.174 New source performance standards. NR 230.176 Pretreatment standards for new sources. NR 230.177 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. Subchapter XX — Sodium sulfite
NR 230.20 Applicability; description of the sodium sulfite subcategory. NR 230.202 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. NR 230.203 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. NR 230.204 New source performance standards. NR 230.206 Pretreatment standards for new sources. Subchapter XXII — Titanium dioxide
NR 230.22 Applicability; description of the titanium dioxide subcategory. NR 230.222 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. NR 230.223 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. NR 230.224 New source performance standards. NR 230.226 Pretreatment standards for new sources. NR 230.227 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. Subchapter XXIII — Aluminum fluoride
NR 230.23 Applicability; description of the aluminum fluoride subcategory. NR 230.232 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. NR 230.233 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. NR 230.234 New source performance standards. NR 230.237 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. Subchapter XXIV — Ammonium chloride
NR 230.24 Applicability; description of the ammonium chloride subcategory. NR 230.241 Specialized definitions. NR 230.2415 Regulation of contaminated nonprocess wastewater. NR 230.242 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. Subchapter XXVII — Borax
NR 230.27 Applicability; description of the borax subcategory. NR 230.272 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. NR 230.276 Pretreatment standards for new sources. Subchapter XXVIII — Boric acid
NR 230.28 Applicability; description of the boric acid subcategory. NR 230.282 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. Subchapter XXIX — Bromine
NR 230.29 Applicability; description of the bromine subcategory. NR 230.292 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. NR 230.296 Pretreatment standards for new sources. Subchapter XXX — Calcium carbonate
NR 230.30 Applicability; description of the calcium carbonate subcategory. NR 230.302 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. Subchapter XXXI — Calcium hydroxide
NR 230.31 Applicability; description of the calcium hydroxide subcategory. NR 230.311 Specialized definitions. NR 230.312 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. NR 230.316 Pretreatment standards for new sources. Subchapter XXXIII — Carbon monoxide and byproduct hydrogen
NR 230.33 Applicability; description of the carbon monoxide and byproduct hydrogen subcategory. NR 230.332 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. Subchapter XXXIV - Chrome pigments
NR 230.34 Applicability; description of the chrome pigments subcategory. NR 230.342 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. NR 230.343 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. NR 230.344 New source performance standards. NR 230.345 Pretreatment standards for existing sources.
