Subpart I. Subpart I—Acid Pickling Subcategory

• § 420.90 - Applicability; description of the acid pickling subcategory.
• § 420.91 - Specialized definitions.
• § 420.92 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
• § 420.93 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
• § 420.94 - New source performance standards (NSPS).
• § 420.95 - Pretreatment standards for existing sources (PSES).
• § 420.96 - Pretreatment standards for new sources (PSNS).
• § 420.97 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional technology (BCT).