California, Environmentalists Ask Court To Revive 'Once In' Air Toxics Policy

California and environmental groups are asking a federal appeals court to restore EPA's former “once in, always in” (OIAI) policy of regulating industrial facilities as “major” air toxics sources even when they cut emissions below major source thresholds, arguing the Trump administration's decision to scrap the policy is unlawful and will boost pollution. In separate briefs filed Oct. 1 with the U.S. Court of Appeals for the District of Columbia Circuit in the case California Communities Against Toxics, et al....