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Regulations last checked for updates: Dec 12, 2025
Title 40 - Protection of Environment last revised: Nov 12, 2028
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.
authority:
Safe Drinking Water Act,
42 U.S.C. 300f
source:
45 FR 42500, June 24, 1980, unless otherwise noted.
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