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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 420—IRON AND STEEL MANUFACTURING POINT SOURCE CATEGORY > SUBPART I—Acid Pickling Subcategory (§420.90 to §420.97)
SUBPART I—Acid Pickling Subcategory (§420.90 to §420.97)