{"data":{"id":"us/40-cfr-81.455","jurisdiction":"us","citation":"40 CFR 81.455","heading":"Scope.","body":"This subpart identifies interstate transport regions established for national ambient air quality standards pursuant to section 184 or section 176A of the Clean Air Act.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 81—DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES","Subpart E—Identification of Interstate Transport Regions"],"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":"af6facf6aafd419225f243f406a6115dc0bbeafe51fafc756c64bc0121291ba8","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-81.437","next":"us/40-cfr-81.457"},"notice":"GroundRules: Original legal text. Not legal advice."}