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CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS (Parts 400–471) > PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY > SUBPART G—Primary Lead Subcategory (§421.70 to §421.77) > 421.70—Applicability: Description of the primary lead subcategory.
421.70—Applicability: Description of the primary lead subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of lead at primary lead smelters and refineries.