{"data":{"id":"us/40-cfr-63.7681","jurisdiction":"us","citation":"40 CFR 63.7681","heading":"Am I subject to this subpart?","body":"You are subject to this subpart if you own or operate an iron and steel foundry that is (or is part of) a major source of hazardous air pollutant (HAP) emissions. Your iron and steel foundry is a major source of HAP for purposes of this subpart if it emits or has the potential to emit any single HAP at a rate of 10 tons or more per year or any combination of HAP at a rate of 25 tons or more per year or if it is located at a facility that emits or has the potential to emit any single HAP at a rate of 10 tons or more per year or any combination of HAP at a rate of 25 tons or more per year as defined in § 63.2.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES","Subpart EEEEE—National Emission Standards for Hazardous Air Pollutants for Iron and Steel Foundries"],"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":"f98fcb425e425ee620f074b5d5fd4f4bccd2529ddfdd167559d484c248d7ed44","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-63.7680","next":"us/40-cfr-63.7682"},"notice":"GroundRules: Original legal text. Not legal advice."}