Article 28
The other party may agree to the challenge or the arbitrator may voluntarily withdraw. In either case, the arbitrator shall be replaced without any implication that the grounds for the challenge are valid.
Article 29
If the other party does not agree to the challenge and the challenged arbitrator does not withdraw, the decision on the challenge shall be made by the Center in accordance with its internal procedures. Such a decision is of an administrative nature and shall be final. The Center shall not be required to state reasons for its decision.
Release from Appointment
Article 30
At the arbitrator's own request, an arbitrator may be released from appointment as arbitrator either with the consent of the parties or by the Center.