{"data":{"id":"us/40-cfr-65.118","jurisdiction":"us","citation":"40 CFR 65.118","heading":"Alternative means of emission limitation: Enclosed-vented process units.","body":"(a) Use of closed vent system and control device. Process units that are enclosed in such a manner that all emissions from equipment leaks are routed to a process or fuel gas system or collected and vented through a closed vent system to a control device meeting the requirements of § 65.115 are exempt from the requirements of §§ 65.106 through 65.114 and § 65.116. The enclosure shall be maintained under a negative pressure at all times while the process unit is in operation to ensure that all emissions are routed to a control device.\n(b) Recordkeeping. Owners and operators choosing to comply with the requirements of this section shall maintain the following records:\n(1) Identification of the process unit(s) and the regulated materials they handle.\n(2) A schematic of the process unit, enclosure, and closed vent system.\n(3) A description of the system used to create a negative pressure in the enclosure to ensure that all emissions are routed to the control device.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 65—CONSOLIDATED FEDERAL AIR RULE","Subpart F—Equipment Leaks"],"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":"57c1ab8d631a5ffb5fc72ce2e1f6719ac3c2eddf46d390dd6435b0598028b7d4","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-65.117","next":"us/40-cfr-65.119"},"notice":"GroundRules: Original legal text. Not legal advice."}