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Code of Federal Regulations
C.F.R. Title 40—Protection of Environment
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS
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.
§421.192-421.193 [Reserved]
§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]
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