EPA Finalizes Determination that Dallas/Fort Worth Ozone Nonattainment Area Failed to Meet 1997 Standard

Summary

The US Environmental Protection Agency (EPA) has determined that the Dallas/Fort Worth moderate 8-hour ozone nonattainment area failed to meet the 1997 8-hour ozone national ambient air quality standard by the June 15, 2010, deadline, and will be reclassified as a serious ozone nonattainment area with a new attainment date of June 15, 2013, or sooner.