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Technology Transfer Network / NAAQS
Ozone Implementation

Implementation Rule for the 1997
8-hour Ozone Standard
What's New?

Information provided for informational purposes onlyNote: EPA no longer updates this information, but it may be useful as a reference or resource.
  • January 12, 2009 - Proposed Rule to Implement the 1997 8-Hour Ozone National Ambient Air Quality Standard: Revision on Subpart 1 Area Reclassification and Anti-Backsliding Provisions Under Former 1-Hour Ozone Standard; Proposed Deletion of Obsolete 1-Hour Ozone Standard Provision - see Proposed Rule Documents
  • March 22, 2007 - Petitions for Panel Rehearing of U. S. Court of Appeals Decision in No. 04-1200, South Coast Air Quality Management District, et al. v. U. S. Environmental Protection Agency, On Petition for Review of a Final Rule of the United States Environmental Protection Agency - see Final Rule Documents
  • June 30, 2005 - Nonattainment Major New Source Review Implementation Under 8-Hour Ozone National Ambient Air Quality Standard: Reconsideration - see Final Rule Documents
  • June 30, 2005 - Fact Sheet: Notice of final rulemaking to reconsider how new source review applies under the phase 1 rule implementing the national air quality standards for 8-hour ozone - see Final Rule Documents
  • May 25, 2005 - Final Reconsideration of Phase 1 Rule to Implement the 8-Hour Ozone NAAQS (185 Fee Provisions and Timing for Determining Applicable Requirements) - see Final Rule Documents
  • May 25, 2005 - Fact Sheet on Final Reconsideration of Phase 1 Rule to Implement the 8-Hour Ozone NAAQS (185 Fee Provisions and Timing for Determining Applicable Requirements) - see Final Rule Documents


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