{"data":{"id":"us/40-cfr-63.9990","jurisdiction":"us","citation":"40 CFR 63.9990","heading":"What are the subcategories of EGUs?","body":"(a) Coal-fired EGUs are subcategorized as defined in paragraphs (a)(1) through (3) of this section and as defined in § 63.10042.\n(1) EGUs designed for coal with a heating value greater than or equal to 8,300 Btu/lb,\n(2) EGUs designed for low rank virgin coal, and\n(3) EGUs designed for EBCR.\n(b) Oil-fired EGUs are subcategorized as noted in paragraphs (b)(1) through (b)(4) of this section and as defined in § 63.10042.\n(1) Continental liquid oil-fired EGUs\n(2) Non-continental liquid oil-fired EGUs,\n(3) Limited-use liquid oil-fired EGUs, and\n(4) EGUs designed to burn solid oil-derived fuel.\n(c) IGCC units combusting either gasified coal or gasified solid oil-derived fuel. For purposes of compliance, monitoring, recordkeeping, and reporting requirements in this subpart, IGCC units are subject in the same manner as coal-fired units and solid oil-derived fuel-fired units, unless otherwise indicated.","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 UUUUU—National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units"],"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":"46b02341e89b5334300d928f5483c251612412e5ad51fdb2f0cbc4c4b638f587","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-63.9985","next":"us/40-cfr-63.9991"},"notice":"GroundRules: Original legal text. Not legal advice."}