Section 46: Replacement of arbitrators.

(1) Where an arbitrator dies or resigns during the course of the arbitral proceedings, a substitute arbitrator shall be appointed or chosen pursuant to the procedure provided for in section 44 and 45 of this Act that was applicable to the appointment or choice of the arbitrator being replaced.
(2) Where an arbitrator fails to act or in the event of the de jure or de facto impossibility of his performing his functions, the procedure in respect of the challenge and replacement of an arbitrator as provided in sections 44 and 45 of this Act shall apply.