{"data":{"id":"us/40-cfr-280.74","jurisdiction":"us","citation":"40 CFR 280.74","heading":"Closure records.","body":"Owners and operators must maintain records in accordance with § 280.34 that are capable of demonstrating compliance with closure requirements under this subpart. The results of the excavation zone assessment required in § 280.72 must be maintained for at least three years after completion of permanent closure or change-in-service in one of the following ways:\n(a) By the owners and operators who took the UST system out of service;\n(b) By the current owners and operators of the UST system site; or\n(c) By mailing these records to the implementing agency if they cannot be maintained at the closed facility.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER I—SOLID WASTES","PART 280—TECHNICAL STANDARDS AND CORRECTIVE ACTION REQUIREMENTS FOR OWNERS AND OPERATORS OF UNDERGROUND STORAGE TANKS (UST)","Subpart G—Out-of-Service UST Systems and Closure"],"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":"0a97b1839da6227c1e97589263538bf6c3e8ec45d73aac0f780fb23bab6e58b8","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-280.73","next":"us/40-cfr-280.90"},"notice":"GroundRules: Original legal text. Not legal advice."}