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Related Material
Note: EPA no longer updates this information, but it may be useful as a reference or resource.
- Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; Ohio and Kentucky
- Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; Ohio and Kentucky; Reopening of the Public Comment Period
- Clean Air Act Promulgation of Extension of Attainment Date for Ozone Nonattainment Area; Ohio; Kentucky
- Clean Air Act Promulgation of Extension of Attainment Date for Ozone Nonattainment Area; Ohio; Kentucky
- Control of Air Pollution From New Motor Vehicles: Tier 2 Motor Vehicle Emissions Standards and Gasoline Sulfur Control Requirements
- Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; Ohio
- Determination of Attainment of Ozone Standard for Salt Lake and Davis Counties, Utah, and Determination Regarding Applicability of Certain Reasonable Further Progress and Attainment Demonstration Requirements
- Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; State of Michigan
- Approval and Promulgation of Implementation Plans; Ohio
- Approval and Promulgation of State Implementation Plan; Michigan; Eagle-Ottawa Leather Co. Site-Specific SIP Revision
- Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; State of Texas; Approval of the Maintenance Plan for Victoria County and Redesignation of the Victoria County Ozone Nonattainment Area to Attainment
- Approval and Promulgation of Implementation Plans Kentucky: Adoption of General Conformity Regulations
- Approval and Promulgation of Implementation Plan; Ohio
- Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; State of Florida Change in National Policy Regarding Applicability of Conformity Requirements to Redesignation Requests
- Approval and Promulgation of Air Quality Implementation Plans; Designation of Areas for Air Quality Planning Purposes; Redesignation of the Greenbrier County WV Ozone Nonattainment Area to Attainment and Approval of the Area's Maintenance Plan and Emissions Inventory
- AGENCY: U.S. Environmental Protection Agency (EPA).
- Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; State of Florida
- Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; State of Florida Change in National Policy Regarding Applicability of Conformity Requirements to Redesignation Requests
- Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; Commonwealth of Kentucky
- Approval and Promulgation of Air Quality Implementation Plans, and Designation of Areas for Air Quality Planning Purposes; Indiana
- 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; Ohio
- 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; Ohio
- Approval and Promulgation of Air Quality 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: Wisconsin
- Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; State of Wisconsin
- Approval and Promulgation of State Implementation Plans: Oregon
- Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; State of Louisiana; Correction of Classification; Approval of the Maintenance Plan; Redesignation of Pointe Coupee Parish to Attainment for Ozone
- Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; State of Louisiana; Correction of Classification; Approval of the Maintenance Plan; Redesignation of Pointe Coupee Parish to Attainment for Ozone
- Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; State of California; Determination Regarding Applicability of Certain Reasonable Further Progress and Attainment Demonstration Requirements; Monterey Bay Area
- Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes: State of Ohio
- Approval and Promulgation of Air Quality Implementation Plans; District of Columbia, Maryland, Virginia; One-Hour Ozone Attainment Demonstration for the Metropolitan Washington D.C. Ozone Nonattainment Area
- 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 Air Quality Implementation Plans; Pennsylvania; Redesignation, Maintenance Plan, and Emissions Inventories for Reading; Ozone Redesignations Policy Change
- Approval and Promulgation of Implementation Plans; Ohio
- Approval and Promulgation of State Implementation Plan; Ohio
- Approval and Promulgation of Implementation Plans; Commonwealth of Kentucky
- Clean Air Act Promulgation of Extension of Attainment Date for Ozone Nonattainment Area; Ohio; Kentucky
- Approval and Promulgation of Implementation Plans; Ohio
- Federalism: Executive Order 13132 of August 4, 1999
- Executive Order 13045--Protection of Children From Environmental Health Risks and Safety Risks