In Order to Address the Non-Degradation Dilemma,amendments to the U

In order to address the non-degradation dilemma,amendments to the U.S.HYPERLINK "" Clean Air Act enacted stricter technology-based emission standards for non-attainment areas than for "prevention of serious deterioration" (PSD)areas.
PSD areas have stricter regulations to maintain the higher existing air quality in these areas in order to avoid the non-degradation dilemma.