40 CFR Subpart MM
Oregon
June 9, 2020
§
52.1972
Approval status
§
52.1973
[Reserved]
§
52.1974
Original identification of plan section
§
§52.1975-52.1986
[Reserved]
§
52.1971
Classification of regions
§
52.1970
Identification of plan
§
52.1970
[Amendment] Identification of plan
§
52.1987
Significant deterioration of air quality
§
52.1988
Air contaminant discharge permits
§
§52.1989-52.2019
[Reserved]