Subpart NN—Pennsylvania
- §147.1950 State-administered program. [Reserved]
- §147.1951 EPA-administered program.
- §147.1952 Aquifer exemptions.
- §147.1953 Existing Class I, II (except enhanced recovery and hydrocarbon storage) and III wells authorized by rule.
- §147.1954 Existing Class II enhanced recovery and hydrocarbon storage wells authorized by rule.
- §147.1955 Requirements for wells authorized by permit.