SUBPART K—Primary Columbium-Tantalum Subcategory (§421.110 to §421.117)
- 421.110—Applicability: Description of the primary columbium-tantalum subcategory.
- 421.111—Specialized definitions.
- 421.112—Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
- 421.113—Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
- 421.114—Standards of performance for new sources.
- 421.115—Pretreatment standards for existing sources.
- 421.116—Pretreatment standards for new sources.