{"data":{"id":"us/40-cfr-65.65","jurisdiction":"us","citation":"40 CFR 65.65","heading":"Monitoring.","body":"(a) An owner or operator of a Group 2A process vent maintaining a TRE index value greater than 1.0 without a recovery device shall monitor based on the approved plan as specified in § 65.63(d).\n(b) As required in § 65.63(a) and (c), an owner or operator of a Group 2A process vent maintaining a TRE index value greater than 1.0 with a recovery device or a Group 1 process vent shall comply with § 65.142(b).","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 65—CONSOLIDATED FEDERAL AIR RULE","Subpart D—Process Vents"],"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":"5508d3a857c2e9c390dfcbeb8ac82ff3f994fe5d8948d3d43fe985b07556b6b5","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-65.64","next":"us/40-cfr-65.66"},"notice":"GroundRules: Original legal text. Not legal advice."}