{"data":{"id":"us/40-cfr-61.19","jurisdiction":"us","citation":"40 CFR 61.19","heading":"Circumvention.","body":"No owner or operator shall build, erect, install, or use any article machine, equipment, process, or method, the use of which conceals an emission which would otherwise constitute a violation of an applicable standard. Such concealment includes, but is not limited to, the use of gaseous dilutants to achieve compliance with a visible emissions standard, and the piecemeal carrying out of an operation to avoid coverage by a standard that applies only to operations larger than a specified size.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 61—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS","Subpart A—General Provisions"],"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":"2e9b9f997493a31bb7ecbc1b05cf465a1bf4176fb14107dbf5ed2e4e9b0d1878","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-61.18","next":"us/40-cfr-61.20"},"notice":"GroundRules: Original legal text. Not legal advice."}