{"data":{"id":"us/40-cfr-146.21","jurisdiction":"us","citation":"40 CFR 146.21","heading":"Applicability.","body":"This subpart establishes criteria and standards for underground injection control programs to regulate Class II wells.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER D—WATER PROGRAMS","PART 146—UNDERGROUND INJECTION CONTROL PROGRAM: CRITERIA AND STANDARDS","Subpart C—Criteria and Standards Applicable to Class II Wells"],"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":"c3e5b5c4258465dc624c17c89638718e3fdedb4eb8941d5b690ccbb2edaa0057","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-146.16","next":"us/40-cfr-146.22"},"notice":"GroundRules: Original legal text. Not legal advice."}