In an April 11, 2017 Order, the D.C. Circuit Court of Appeals granted EPA’s petition to indefinitely delay oral argument in the Ozone NAAQS litigation. Originally scheduled for February 16, 2017, oral argument was rescheduled for April 19, 2017. EPA petitioned the court to further delay oral argument because it intends to review the NAAQS rule. In granting EPA’s request, the court ordered that the NAAQS litigation be held in abeyance. EPA must file status reports on its review of the NAAQS rule at 90-day intervals, beginning 90 days from this Order. Within 30 days of EPA informing the court of what action it has or will take with respect to the rule, the parties must file motions to govern future proceedings. The court’s Order can be accessed here.