In most arbitrations, the arbitrator decides any issues regarding discovery. Not so in uninsured/underinsured motorist arbitrations under Ins. Code 11580.2(f). The court decides discovery issues in those types of arbitration proceedings. This decision holds that the trial court’s discovery rulings cannot be challenged on an appeal from an order confirming the arbitration award because error in discovery rulings by a trial court are not a ground on which an arbitration award may be set aside under CCP 1286.2. The only way to obtain appellate review of the trial court’s discovery rulings is by petitioning for an extraordinary writ shortly after the discovery order is entered.