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Regulations last checked for updates: Apr 30, 2025
Title 40 - Protection of Environment last revised: Nov 30, 2025
All Titles
Title 40
Chapter I
Part 146
Subpart A - Subpart A—General Provisions
§ 146.1 - Applicability and scope.
§ 146.2 - Law authorizing these regulations.
§ 146.3 - Definitions.
§ 146.4 - Criteria for exempted aquifers.
§ 146.5 - Classification of injection wells.
§ 146.6 - Area of review.
§ 146.7 - Corrective action.
§ 146.8 - Mechanical integrity.
§ 146.9 - Criteria for establishing permitting priorities.
§ 146.10 - Plugging and abandoning Class I, II, III, IV, and V wells.
authority:
Safe Drinking Water Act,
42 U.S.C. 300f
source:
45 FR 42500, June 24, 1980, unless otherwise noted.
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