Related Material
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; Pennsylvania; Redesignation Request, Maintenance Plan, and Emissions Inventory for the Reading Ozone Nonattainment Area; Policy Change for Ozone Redesignations
- Approval and Promulgation of Implementation Plan; Ohio
- Approval and Promulgation of Air Quality Implementation Plans; Commonwealth of Pennsylvania; Enhanced Motor Vehicle Inspection and Maintenance Program
- Prevention of Significant Deterioration and Nonattainment New Source Review; Proposed Rule
- Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; Ohio
- Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; State of New Jersey; Revised Policy Regarding Applicability of Oxygenated Fuels Requirements
- Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; Ohio
- Approval and Promulgation of Air Quality Implementation Plans; Commonwealth of Pennsylvania; Enhanced Motor Vehicle Inspection and Maintenance Program
- Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; Ohio
![[logo] US EPA](http://www.epa.gov/epafiles/images/logo_epaseal.gif)