This bill amends the Clean Air Act to create a new pathway for redesignating an ozone nonattainment area as an attainment area. Under this provision, an area can be reclassified if the State demonstrates, and the Environmental Protection Agency (EPA) Administrator concurs, that the area would have met the national ambient air quality standard for ozone by its deadline, but for pollution originating from outside the State . The Governor of a State can submit this finding and demonstration to the Administrator at any time, who must then respond within 180 days . If the Administrator concurs, the redesignation must be promulgated, with both parties considering modeling or monitoring evidence of emissions from other States and foreign countries .