§ 439.20 Applicability
§ 439.21 Special definitions
§ 439.22 Effluent limitations attainable by the application of the best practicable control technology currently available (BPT)
§ 439.23 Effluent limitations attainable by the application of the best conventional pollutant control technology (BCT)
§ 439.24 Effluent limitations attainable by the application of best available technology economically achievable (BAT)
§ 439.25 New source performance standards (NSPS)
§ 439.26 Pretreatment standards for existing sources (PSES)
§ 439.27 Pretreatment standards for new sources (PSNS)