{"data":{"id":"us/40-cfr-437.15","jurisdiction":"us","citation":"40 CFR 437.15","heading":"Pretreatment standards for existing sources (PSES).","body":"(a) Except as provided in 40 CFR 403.7, 403.13 or § 437.10(b), and no later than December 22, 2003, any existing source subject to this subpart must achieve the following pretreatment standards: Standards for antimony, arsenic, cadmium, chromium, cobalt, copper, lead, mercury, nickel, silver, tin, titanium, vanadium, and zinc are the same as the corresponding limitation specified in § 437.11(a).\n(b) In-plant standards for cyanide are the same as the limitations specified in § 437.11(b).","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS","PART 437—THE CENTRALIZED WASTE TREATMENT POINT SOURCE CATEGORY","Subpart A—Metals Treatment and Recovery"],"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":"a3521a348f05296b58c12b5d2439afcbdf95dee75fd8190267006e321e19a70b","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-437.14","next":"us/40-cfr-437.16"},"notice":"GroundRules: Original legal text. Not legal advice."}