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Code of Federal Regulations (Last Updated: November 8, 2024) |
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Title 40 - Protection of Environment |
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Chapter I - Environmental Protection Agency |
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SubChapter N - Effluent Guidelines and Standards |
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Part 421 - Nonferrous Metals Manufacturing Point Source Category |
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Subpart Q - Secondary Indium Subcategory |
| § 421.190 - Applicability: Description of the secondary indium subcategory. |
| § 421.191 - Specialized definitions. |
| § 421.194 - Standards of performance for new sources. |
| § 421.195 - Pretreatment standards for existing sources. |
| § 421.196 - Pretreatment standards for new sources. |
| § 421.197 - [Reserved] |
| §§ 421.192--421.193 - [Reserved] |