40 CFR Subpart C
Authorization of Underground Injection by Rule
June 9, 2020
§
144.21
Existing Class I, II (except enhanced recovery and hydrocarbon storage) and III wells
§
144.22
Existing Class II enhanced recovery and hydrocarbon storage wells
§
144.23
Class IV wells
§
144.24
Class V wells
§
144.25
Requiring a permit
§
144.26
Inventory requirements
§
144.27
Requiring other information
§
144.28
Requirements for Class I, II, and III wells authorized by rule