Industry and environmentalists are both urging a federal appellate court to vacate EPA’s air toxics rule limiting emissions of ethylene oxide (EtO) from sterilizers, though they are offering competing arguments over why the landmark measure is unlawful and should be vacated. In Oct.18 opening briefs in the consolidated litigation, the Ethylene Oxide Sterilization Association, Inc. v EPA and California Communities Against Toxics, et al. v. EPA , industry groups charged the measure’s emission limits and deadlines are unlawfully stringent...