§ 461.70 Applicability; description of the zinc subcategory
§ 461.71 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT)
§ 461.72 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT)
§ 461.73 New source performance standards. (NSPS)
§ 461.74 Pretreatment standards for existing sources (PSES)
§ 461.75 Pretreatment standards for new sources (PSNS)