(a) The Chief Administrator shall provide for the compensation, including expenses, payable to each arbitrator to the extent of money available to the administrative office for the courts for this purpose. Claims for such compensation shall be made to the commissioner after entry of the award on forms prescribed by the Chief Administrator, except that a claim for compensation of the chairperson of a panel also may be made where the action is settled or withdrawn after a panel hearing date has been scheduled but before the hearing is commenced, and a claim for compensation of an arbitrator other than a chairperson may be made where the action is settled or withdrawn within three days of the date scheduled for the hearing. The commissioner shall forward all claims approved by him to the Chief Administrator. Any arbitrator may apply to the commissioner for reimbursement of extraordinary expenses necessarily incurred by him in the same manner as provided for application for ordinary compensation.