Mealey's (June 9, 2021, 2:59 PM EDT) -- WASHINGTON, D.C. — A District of Columbia Circuit U.S. Court of Appeals panel on May 25 vacated a trial court’s ruling that a dispute between a union and employer over the appointment of an arbitrator to a board established via the parties’ collective bargaining agreement (CBA) to resolve grievances must be arbitrated and remanded for a determination on whether the arbitrator’s appointment was by mutual agreement of the parties as the panel determined was required by the CBA....