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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 147
Subpart F - Subpart F—California
§ 147.250 - State-administered program—Class II wells.
§ 147.251 - EPA-administered program—Class I, III, IV and V wells and Indian lands.
§ 147.252 - Aquifer exemptions. [Reserved]
§ 147.253 - Existing Class I, II (except enhanced recovery and hydrocarbon storage) and III wells authorized by rule.
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