Code of Federal Regulations · Part
Part 421 — Nonferrous Metals Manufacturing Point Source Category
40 C.F.R. pt. 421
- § 421.1 Applicability
- § 421.2 [reserved]
- § 421.3 Monitoring And Reporting Requirements
- § 421.4 Compliance Date For Pretreatment Standards For Existing Sources (pses)
- § 421.5 Removal Allowances For Pretreatment Standards
- Subpart A Bauxite Refining Subcategory
- Subpart AA Secondary Tin Subcategory
- Subpart AB Primary And Secondary Titanium Subcategory
- Subpart AC Secondary Tungsten And Cobalt Subcategory
- Subpart AD Secondary Uranium Subcategory
- Subpart AE Primary Zirconium And Hafnium Subcategory
- Subpart B Primary Aluminum Smelting Subcategory
- Subpart C Secondary Aluminum Smelting Subcategory
- Subpart D Primary Copper Smelting Subcategory
- Subpart E Primary Electrolytic Copper Refining Subcategory
- Subpart F Secondary Copper Subcategory
- Subpart G Primary Lead Subcategory
- Subpart H Primary Zinc Subcategory
- Subpart I Metallurgical Acid Plants Subcategory
- Subpart J Primary Tungsten Subcategory
- Subpart K Primary Columbium-tantalum Subcategory
- Subpart L Secondary Silver Subcategory
- Subpart M Secondary Lead Subcategory
- Subpart N Primary Antimony Subcategory
- Subpart O Primary Beryllium Subcategory
- Subpart P Primary And Secondary Germanium And Gallium Subcategory
- Subpart Q Secondary Indium Subcategory
- Subpart R Secondary Mercury Subcategory
- Subpart S Primary Molybdenum And Rhenium Subcategory
- Subpart T Secondary Molybdenum And Vanadium Subcategory
- Subpart U Primary Nickel And Cobalt Subcategory
- Subpart V Secondary Nickel Subcategory
- Subpart W Primary Precious Metals And Mercury Subcategory
- Subpart X Secondary Precious Metals Subcategory
- Subpart Y Primary Rare Earth Metals Subcategory
- Subpart Z Secondary Tantalum Subcategory