{"data":{"id":"us/40-cfr-471.90","jurisdiction":"us","citation":"40 CFR 471.90","heading":"Applicability; description of the zirconium-hafnium forming subcategory.","body":"This subpart applies to discharges of pollutants to waters of the United States, and introductions of pollutants into publicly owned treatment works from the process operations of the zirconium-hafnium forming subcategory.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS","PART 471—NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY","Subpart I—Zirconium-Hafnium Forming Subcategory"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"9582c4cb13a3f593e3bafefb1bf0225fd2aaa798a1643b7f71d0e3f33ea9b832","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-471.86","next":"us/40-cfr-471.91"},"notice":"GroundRules: Original legal text. Not legal advice."}