{"data":{"id":"us/40-cfr-280.91","jurisdiction":"us","citation":"40 CFR 280.91","heading":"Compliance dates.","body":"Owners of petroleum underground storage tanks must comply with the requirements of this subpart. Previously deferred UST systems must comply with the requirements of this subpart according to the schedule in § 280.251(a).","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 H—Financial Responsibility"],"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":"03dac5e809092002acebb62ea6b2a413cefe3078827035011386967150147414","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-280.90","next":"us/40-cfr-280.92"},"notice":"GroundRules: Original legal text. Not legal advice."}