{"data":{"id":"us/40-cfr-63.11144","jurisdiction":"us","citation":"40 CFR 63.11144","heading":"What definitions apply to this subpart?","body":"(a) On and before April 17, 2012, the terms used in this subpart are defined in the Clean Air Act; §§ 61.02 and 61.61 of this chapter; and § 63.2 for terms used in the applicable provisions of subpart A of this part, as specified in § 63.11143(b).\n(b) After April 17, 2012, terms used in this subpart are defined in the Clean Air Act; § 63.2; and § 63.12005.","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 DDDDDD—National Emission Standards for Hazardous Air Pollutants for Polyvinyl Chloride and Copolymers Production 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":"759db0ba395820ccfe9d23d3d63eead40fa87461861e80b787f69a7c4b972d17","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-63.11143","next":"us/40-cfr-63.11145"},"notice":"GroundRules: Original legal text. Not legal advice."}