Subpart B—Primary Aluminum Smelting Subcategory

Sections

• 421.20
  § 421.20 Applicability: description of the primary aluminum smelting subcategory.
• 421.21
  § 421.21 Specialized definitions.
• 421.22
  § 421.22 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
• 421.23
  § 421.23 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
• 421.24
  § 421.24 Standards of performance for new sources.
• 421.25
  § 421.25 [Reserved]
• 421.26
  § 421.26 Pretreatment standards for new sources.
• 421.27
  § 421.27 [Reserved]