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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.
NR 230.346   Pretreatment standards for new sources.
NR 230.347   Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology.
Subchapter XXXV — Chromic acid
NR 230.35   Applicability; description of the chromic acid subcategory.
NR 230.352   Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
NR 230.356   Pretreatment standards for new sources.
Subchapter XXXVI — Copper salts
NR 230.36   Applicability; description of the copper salts subcategory.
NR 230.362   Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
NR 230.363   Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
NR 230.364   New source performance standards.
NR 230.365   Pretreatment standards for existing sources.
NR 230.366   Pretreatment standards for new sources.
NR 230.367   Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology.
Subchapter XXXVIII — Ferric chloride
NR 230.38   Applicability; description of the ferric chloride subcategory.
NR 230.381   Specialized definitions.
NR 230.3815   Regulation of contaminated nonprocess wastewater.
NR 230.382   Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
NR 230.385   Pretreatment standards for existing sources.
NR 230.386   Pretreatment standards for new sources.
Subchapter XL — Fluorine
NR 230.40   Applicability; description of the fluorine subcategory.
NR 230.401   Specialized definitions.
NR 230.4015   Regulation of contaminated nonprocess wastewater.
NR 230.402   Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
NR 230.406   Pretreatment standards for new sources.
Subchapter XLI — Hydrogen
NR 230.41   Applicability; description of the hydrogen subcategory.
NR 230.411   Specialized definitions.
NR 230.412   Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Subchapter XLII — Hydrogen cyanide
NR 230.42   Applicability; description of the hydrogen cyanide subcategory.
NR 230.422   Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
NR 230.423   Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
NR 230.424   New source performance standards.
NR 230.426   Pretreatment standards for new sources.
NR 230.427   Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology.
Subchapter XLIII — Iodine
NR 230.43   Applicability; description of the iodine subcategory.
NR 230.431   Specialized definitions.
NR 230.432   Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
NR 230.436   Pretreatment standards for new sources.
Subchapter XLIV — Lead monoxide
NR 230.44   Applicability; description of the lead monoxide subcategory.
NR 230.441   Specialized definitions.
NR 230.4415   Regulation of contaminated nonprocess wastewater.
NR 230.442   Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
NR 230.445   Pretreatment standards for existing sources.
NR 230.446   Pretreatment standards for new sources.
Subchapter XLV — Lithium carbonate
NR 230.45   Applicability; description of the lithium carbonate subcategory.
NR 230.452   Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Subchapter XLVII — Nickel salts
NR 230.47   Applicability; description of the nickel salts subcategory.
NR 230.472   Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
NR 230.473   Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
NR 230.474   New source performance standards.
NR 230.475   Pretreatment standards for existing sources.
NR 230.476   Pretreatment standards for new sources.
NR 230.477   Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology.
Subchapter IL — Oxygen and nitrogen
NR 230.49   Applicability; description of the oxygen and nitrogen subcategory.
NR 230.492   Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Subchapter L — Potassium chloride
NR 230.50   Applicability; description of the potassium chloride subcategory.
NR 230.502   Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
NR 230.506   Pretreatment standards for new sources.
Subchapter LI — Potassium iodide
NR 230.51   Applicability; description of the potassium iodide subcategory.
NR 230.512   Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Subchapter LIII — Silver nitrate
NR 230.53   Applicability; description of the silver nitrate subcategory.
NR 230.532   Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
NR 230.535   Pretreatment standards for existing sources.
Subchapter LIV — Sodium bisulfite
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Published under s. 35.93, Stats. Updated on the first day of each month. Entire code is always current. The Register date on each page is the date the chapter was last published.