{"data":{"id":"us/40-cfr-63.11200","jurisdiction":"us","citation":"40 CFR 63.11200","heading":"What are the subcategories of boilers?","body":"The subcategories of boilers, as defined in § 63.11237 are:\n(a) Coal.\n(b) Biomass.\n(c) Oil.\n(d) Seasonal boilers.\n(e) Oil-fired boilers with heat input capacity of equal to or less than 5 million British thermal units (Btu) per hour.\n(f) Boilers with an oxygen trim system that maintains an optimum air-to-fuel ratio that would otherwise be subject to a biennial tune-up.\n(g) Limited-use boilers.","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 JJJJJJ—National Emission Standards for Hazardous Air Pollutants for Industrial, Commercial, and Institutional Boilers Area Sources"],"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":"64e2ecbaf2fbc653d18e3ddf84508165bd03fb7c72c4e65e5f53c7c2d4c5618a","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-63.11196","next":"us/40-cfr-63.11201"},"notice":"GroundRules: Original legal text. Not legal advice."}