U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 40Chapter IPart 146Subpart H - Subpart H—Criteria and Standards Applicable to Class VI Wells
§ 146.81 - Applicability.
§ 146.82 - Required Class VI permit information.
§ 146.83 - Minimum criteria for siting.
§ 146.84 - Area of review and corrective action.
§ 146.85 - Financial responsibility.
§ 146.86 - Injection well construction requirements.
§ 146.87 - Logging, sampling, and testing prior to injection well operation.
§ 146.88 - Injection well operating requirements.
§ 146.89 - Mechanical integrity.
§ 146.90 - Testing and monitoring requirements.
§ 146.91 - Reporting requirements.
§ 146.92 - Injection well plugging.
§ 146.93 - Post-injection site care and site closure.
§ 146.94 - Emergency and remedial response.
§ 146.95 - Class VI injection depth waiver requirements.
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