AbstractDoes the United States need the Clean Air Act’s Prevention of Significant Deterioration (PSD) program to guard against degradation of air quality? In their recent Comment in these pages, John C. Evans and Donald van der Vaart say no, but the right answer is more nuanced. While the program is flawed in some respects, PSD helps to protect national parklands, guard against pollution “hot spots,” and decrease air pollution emission levels in the United States, thus helping to remedy regional pollution problems.
SubjectsCAA policy, Prevention of significant deterioration (PSD), PSD program, Regional air quality
RightsCopyright for scholarly resources published in RUcore is retained by the copyright holder. By virtue of its appearance in this open access medium, you are free to use this resource, with proper attribution, in educational and other non-commercial settings. Other uses, such as reproduction or republication, may require the permission of the copyright holder.