CASAC Seeks More-Robust NAAQS Reviews, Raising Doubts On Timeline

EPA’s Clean Air Scientific Advisory Committee (CASAC) is calling for a return to more-thorough and potentially longer reviews of national ambient air quality standards (NAAQS), raising difficult questions about how the agency can respect statutory and judicial timelines to complete the frequently delayed reviews. In a March 19 draft letter recently posted to its website, CASAC criticizes the practice of both the Trump and Biden EPA in pushing through NAAQS reviews using a procedure that is abbreviated in comparison with...