CASAC Splits On EPA Ozone Assessment But Declines To Seek Changes

EPA’s Clean Air Scientific Advisory Committee (CASAC) appears likely to explicitly find EPA need not alter the Trump-era integrated science assessment (ISA) that underlies the agency’s reconsideration of federal ozone standards, pleasing environmentalists seeking to quickly finish the review, but the panel remains divided and critical of the ISA. During a meeting of the CASAC special ozone review panel Nov. 14, Elizabeth Sheppard, chair of both the special panel and the seven-member chartered CASAC, outlined proposed changes to an earlier...