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1. Revised PM-2.5 (2012 Standard) Designation Notices
    
   1. Air Quality Designations for the 2012 Primary Annual Fine Particle (PM_2.5) NAAQS (January 15, 2015)
      See 80 FR 2206
   
   
   2. Additional Air Quality Designations and Technical Amendment To Correct Inadvertant Error in the Air Quality Designations for the 2012 Primary Annual Fine Particle (PM_2.5) NAAQS (April 7, 2015)
      See 80 FR 18535
   
   
   3. Air Quality Designations for the 2012 Primary Annual Fine Particle (PM_2.5) NAAQS for Areas in Georgia and Florida (September 6, 2016)
      See 81 FR 61136