"A federal court today [Friday] sided with environmentalists in vacating a significant chunk of an Obama-era rule guiding implementation for the 2008 ozone standard.

The U.S. Court of Appeals for the District of Columbia Circuit found that U.S. EPA unlawfully weakened protections when it decided to revoke the 1997 standard as part of the implementation rule.

Senior Judge David Sentelle, a Reagan appointee who wrote the opinion for the unanimous three-judge panel, found that several parts of EPA's rule were "inconsistent with the clear text" of the Clean Air Act."

Amanda Reilly reports for Greenwire February 16, 2018. [2]