Title 40

PART 421 SUBPART B

Subpart B - Primary Aluminum Smelting Subcategory

40:31.0.1.1.21.2.5.1SECTION 421.20
   421.20 Applicability: description of the primary aluminum smelting subcategory.
40:31.0.1.1.21.2.5.2SECTION 421.21
   421.21 Specialized definitions.
40:31.0.1.1.21.2.5.3SECTION 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.
40:31.0.1.1.21.2.5.4SECTION 421.23
   421.23 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40:31.0.1.1.21.2.5.5SECTION 421.24
   421.24 Standards of performance for new sources.
40:31.0.1.1.21.2.5.6SECTION 421.25
   421.25 [Reserved]
40:31.0.1.1.21.2.5.7SECTION 421.26
   421.26 Pretreatment standards for new sources.
40:31.0.1.1.21.2.5.8SECTION 421.27
   421.27 [Reserved]