For Prevention of Significant Deterioration (PSD) we have terms and definitions in 2 topics. The topics are Air Quality and Environment.

An EPA program in which state and/or federal permits are required to restrict emissions in areas that meet federal standards for criteria pollutants
See more Air Quality Terms ...

EPA program in which state and/or federal permits are required in order to restrict emissions from new or modified sources in places where air quality already meets or exceeds primary and secondary ambient air quality standards.
See more Environment Terms ...
Browse words that start with: