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1. Revised PM-2.5 (2006 Standard) Designation Notices
   
   
   1. Air Quality Designations for the 2006 24-Hour Fine Particle (PM-2.5) NAAQS; Final Rule (November 13, 2009)
      See 74 FR 58688
   
   
   2. Additional Air Quality Designations for the 2006 24-Hour Fine Particle NAAQS, 110(k)(6) Correction and Technical Correction Related to Prior Designation, and Decisions Related to the 1997 Air Quality Designations and Classifications for the Annual Fine Particles NAAQS (February 3, 2011)
      See 76 FR 6056
   
   
   3. Supplemental amendments; Final Additional Air Quality Designations fo rthe 2006 24-Hour Fine Particle NAAQS; 110(k)(6) Correction and Technical Correction Related to Prior Designation and Decisions Related to the 1997 Air Quality Designations and Classifications for the Annual Fine Particles NAAQS (February 3, 2011)
      See 76 FR 6056
   
   
   4. Additional Air Quality Designations for the 2006 24-Hour Fine Particle National Ambient Air Quality Standards (October 26, 2012)
      See 77 FR 65310
   
   
   5. Proposed Identification of Nonattainment Classification and Deadlines for Submission of State Implementation Plan (SIP) Provisions for the 1997 PM2.5 NAAQS and 2006 PM2.5 NAAQS (November 21, 2013)
      See 78 FR 69806
   
   
   6. Final Identification of Nonattainment Classification and Deadlines for Submission of State Implementation Plan (SIP) Provisions for the 1997 PM2.5 NAAQS and 2006 PM2.5 NAAQS (June 2, 2014)
      See 79 FR 31566
   
   
   7. Correction: Identification of Nonattainment Classification and Deadlines for Submission of State Implementation Plan (SIP) Provisions for the 1997 PM2.5 NAAQS and 2006 PM2.5 NAAQS (October 3, 2014)
      See 79 FR 59674
   
   
   8. Correction: Identification of Nonattainment Classification and Deadlines for Submission of State Implementation Plan (SIP) Provisions for the 1997 PM2.5 NAAQS and 2006 PM2.5 NAAQS (October 28, 2014)
      See 79 FR 64123
   
   
   9. Correcting Amendment: Identification of Nonattainment Classification and Deadlines for Submission of State Implementation Plan (SIP) Provisions for the 1997 PM2.5 NAAQS and 2006 PM2.5 NAAQS (December 24, 2014)
      See 79 FR 77389
   
   
   10. Technical Amendments to Inadvertent Error: Air Quality Designations for the 2006 24-Hour Fine Particle NAAQS (2006 24-Hour PM_2.5 NAAQS, 1997 Annual PM_2.5 NAAQS, and 1987 Annual Coarse Particle PM₁₀ NAAQS (July 29, 2015)
       See 80 FR 45067