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Appellate judges in a split panel ruling have vacated a Trump EPA “guidance” that sought to suspend an Obama-era rule barring replacement of refrigerants with climate-warming hydrofluorocarbons (HFCs), agreeing with environmentalists and states that the agency unlawfully adopted the policy without notice-and-comment procedures.

Written testimony submitted to the Senate environment committee is underscoring continuing splits over bipartisan legislation to phase down climate-warming hydrofluorocarbons (HFC), including between industries that favor the measure and those who oppose it or want Congress to block states from issuing tougher restrictions.

EPA is leaving unchanged, for now, voluntary standards to promote water efficiency in five types of plumbing products, including toilets and showers, but says it may consider changes in the future after it fills data gaps about the health effects of low-flow plumbing and finds a way to measure consumer satisfaction with WaterSense products.

The U.S. Court of Appeals for the District of Columbia Circuit is dismissing environmentalists’ challenge to EPA’s guidance allowing regulators to exempt certain projects from in-depth air permit review if their anticipated emissions fall below de minimis thresholds, finding that the guidance is not a final agency action subject to judicial review.

Environmentalists say the advisory panel that reviewed EPA’s draft evaluation of trichloroethylene (TCE) risks lacked the necessary expertise to adequately weigh in on the agency’s decision to focus on immune system effects, an adverse effect that is likely to result in less strict rules than past TCE analyses that examined fetal cardiac defects.

EPA has released for public comment the draft scoping documents for 13 of the next 20 chemicals its toxics program has begun to evaluate, marking the earliest indication of how EPA is planning to assess the second batch of existing chemicals it will assess as Congress directed in its 2016 reform of the Toxic Substances Control Act (TSCA).

A conservative advocacy group is reversing its prior criticism of the Trump administration’s vehicle greenhouse gas standards rollback, and is now touting the rule as a “major victory” by selectively citing cost savings while avoiding the administration’s own estimates that the rule may spur up to $22 billion in net costs on the economy.