1. Proposed Recommendations to EPA for Nonattainment/Attainment Areas 2008 Ozone National Ambient Air Quality Standards Air Quality Technical Advisory Committee February 12, 2009

2. 2008 Ozone Recommendations - AQTAC 2/12/2009 2 The New Standard National Ambient Air Quality Standard (NAAQS) revised from 0.08 parts per million (ppm) to 0.075 parts per million on March 12, 2008. Recommendations from states on boundaries of nonattainment/attainment areas due one year after establishment of NAAQS.

3. 2008 Ozone Recommendations - AQTAC 2/12/2009 3 Factors to Consider “Statistical Areas” established by federal government Air quality data Emissions data Traffic and commuting Growth Meteorology, geography, topography Jurisdictional boundaries including existing planning areas Level of control of emissions

4. 2008 Ozone Recommendations - AQTAC 2/12/2009 4

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8. 8 Process to Provide Recommendations Statewide advertising and availability of proposed recommendations 3 public meetings Recommendations submitted to EPA (March) EPA to notify states 120 days before final designation if changes to state recommendations (November) States can provide additional information, for example, on 2009 ozone season (January) EPA makes final designations (March 2010)

9. 2008 Ozone Recommendations - AQTAC 2/12/2009 9 Questions? Contacts: –Sean Nolan at (717) 787-1454 (senolan@state.pa.us) –Nancy Herb at (717) 783-9269 (nherb@state.pa.us)