{"data":{"id":"us/40-cfr-63.927","jurisdiction":"us","citation":"40 CFR 63.927","heading":"Recordkeeping requirements.","body":"(a) Owners and operators that use Container Level 3 controls in accordance with the provisions of § 63.924 of this subpart shall prepare and maintain the following records:\n(1) Records for the most recent set of calculations and measurements performed by the owner or operator to verify that the enclosure meets the criteria of a permanent total enclosure as specified in “Procedure T—Criteria for and Verification of a Permanent or Temporary Total Enclosure” under 40 CFR 52.741, appendix B.\n(2) Records required for the closed-vent system and control device in accordance with the requirements of § 63.693 in 40 CFR part 63, Subpart DD—National Emission Standards for Hazardous Air Pollutants from Off-Site Waste and Recovery Operations.\n(b) [Reserved]","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 PP—National Emission Standards for Containers"],"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":"6d928278dc2a9496ef7f545b87ff34b9b67de46f222dc0c3a4b9342ff539b4fb","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-63.926","next":"us/40-cfr-63.928"},"notice":"GroundRules: Original legal text. Not legal advice."}