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Legal experts expect judges to quickly stay the Trump administration’s new Clean Water Act (CWA) jurisdiction rule, preventing it from taking effect during imminent and likely-complex legal challenges that are all but guaranteed to reach the Supreme Court thanks to its contentious nature and legal basis that clashes with circuit court precedents.

EPA has found that the once-common solvent carbon tetrachloride does not pose unreasonable risk to directly exposed workers or the environment, though other workers may face risk, says a just-released draft assessment the agency conducted under the revised Toxic Substances Control Act (TSCA).

EPA advisors are poised to eliminate debate on the emissions reduction “co-benefits” stemming from the agency’s review of the Obama-era utility air toxics rule, narrowing the focus of its final report on the review largely to direct mercury benefits and avoiding EPA efforts to discount co-benefits in order to support rolling back its cost-benefit justification.

EPA staff’s just-released final integrated science assessment (ISA) that examines the health effects of particulate matter (PM) makes few changes from the proposed version that drew criticism from agency science advisers, delaying potentially fundamental changes to the scientific review process the advisors had sought for a future review.