{"data":{"id":"us/40-cfr-421.290","jurisdiction":"us","citation":"40 CFR 421.290","heading":"Applicability: Description of the secondary tin subcategory.","body":"The provisions of this subpart are applicable to discharges resulting from the production of tin at secondary tin facilities utilizing either pyrometallurgical or hydrometallurgical processes to recover tin from secondary materials.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS","PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","Subpart AA—Secondary Tin 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":"62cbabbf340ea620ef72e6be0a6d4e31b9547051563433775dca5510629a70f8","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-421.287","next":"us/40-cfr-421.291"},"notice":"GroundRules: Original legal text. Not legal advice."}