{"data":{"id":"us/40-cfr-421.230","jurisdiction":"us","citation":"40 CFR 421.230","heading":"Applicability: Description of the primary nickel and cobalt subcategory.","body":"The provisions of this subpart are applicable to discharges resulting from the production of nickel or cobalt by primary nickel and cobalt facilities processing ore concentrate raw 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 U—Primary Nickel and Cobalt 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":"5a1b2933ed99994c443f1dd1ac550b8fdb0d005c76b9dae16897803d99e777e3","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-421.227","next":"us/40-cfr-421.231"},"notice":"GroundRules: Original legal text. Not legal advice."}