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FR Air Documents
Note: EPA no longer updates this information, but it may be useful as a reference or resource.
- Approval and Promulgation of Air Quality Implementation Plans; Illinois and Indiana; Finding of Attainment for 1-Hour Ozone for the Chicago-Gary-Lake County, IL-IN Area | PDF Version (54K, About PDF)
- Approval and Promulgation of Implementation Plans; Georgia; Nonattainment New Source Review Rules | PDF Version (61K, About PDF)
- Approval and Promulgation of State Implementation Plans: Oregon; Salem Carbon Monoxide Nonattainment Area; Designation of Areas for Air Quality Planning Purposes | PDF Version (44K, About PDF)
- Approval and Promulgation of State Implementation Plans: Oregon; Salem Carbon Monoxide Nonattainment Area; Designation of Areas for Air Quality Planning Purposes | PDF Version (79K, About PDF)