§ 420.50 Applicability; description of the vacuum degassing subcategory
§ 420.52 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT)
§ 420.53 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT)
§ 420.54 New source performance standards (NSPS)
§ 420.55 Pretreatment standards for existing sources (PSES)
§ 420.56 Pretreatment standards for new sources (PSNS)