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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
All Titles
Title 40
Chapter I
Part 146
Subpart C - Subpart C—Criteria and Standards Applicable to Class II Wells
§ 146.21 - Applicability.
§ 146.22 - Construction requirements.
§ 146.23 - Operating, monitoring, and reporting requirements.
§ 146.24 - Information to be considered by the Director.
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