Determination of Attainment for the Ozone National Ambient Air Quality Standards for Nonattainment Areas in Delaware, District of Columbia, Maryland, Pennsylvania, and Virginia

EPA has determined that two severe 1-hour ozone nonattainment areas, Philadelphia-Wilmington-Trenton, and the Metropolitan Washington, DC, attained the 1-hour ozone National Ambient Air Quality Standards (NAAQS) by the applicable attainment date of November 15, 2005. EPA has also determined that these areas are not subject to the imposition of the penalty fees under section 185 of the Clean Air Act (CAA). These determinations of attainment are not a redesignation to attainment for these severe areas for which air quality monitoring data indicates attainment of the standard. EPA is issuing this final action to fulfill obligations to make such determinations under the CAA.