2006 Particulate Matter (PM) National Ambient Air Quality Standards (NAAQS) Actions

EPA Makes Findings of Failure to Submit Infrastructure State Implementation Plans (SIPs) - 2006 PM_2.5 Standard

September 8, 2011 - EPA issued findings that 6 states, Washington DC and Puerto Rico missed Clean Air Act deadlines for submitting plans, or elements of plans, for implementing EPA's national air quality standards for the 2006 PM_2.5.

• September 8, 2011 Fact Sheet
• 2011 Federal Register Notice (pdf) (15pp, 46 KB)

EPA Makes Findings of Failure to Submit State Implementation Plans (SIPs) - 2006 PM_2.5 Standard

June 9, 2010 - EPA issued findings that 29 states missed Clean Air Act deadlines for submitting plans, or elements of plans, for implementing EPA's national air quality standards for the 2006 PM_2.5.

• June 9, 2010 Fact Sheet
• 2010 Federal Register Notice (pdf) (18pp, 38 KB)