THE ARBITRATION RULES OF CHICAGO INTERNATIONAL DISPUTE RESOLUTION ASSOCIATION (CIDRA) ARTICLE 14 - CIDRA OVERSIGHT 1) If the other party does not agree to the challenge and the challenged arbitrator does not withdraw, the decision on the challenge will be made by CIDRA. 2) If CIDRA sustains the challenge, a substitute arbitrator shall be appointed or chosen pursuant to the procedure applicable to the appointment or choice of an arbitrator as provided in Articles 8 to 11.