Article 17. Grounds for challenge

In the case of an appeal to any person in connection with his/her possible appointment as an arbitrator, that person shall disclose any circumstances likely to give rise to reasonable doubts with regard to his/her impartiality or independence. An arbitrator shall - from the time of his/her appointment and throughout the arbitral proceedings - inform the parties without delay of any such circumstances if he/she has not previously notified them of such circumstances.

An arbitrator may be challenged only if circumstances exist that give rise to reasonable doubts with regard to his/her impartiality or independence or if he/she fails to comply with the requirements imposed by the agreement of the parties. A party may challenge an arbitrator whom it has appointed or in whose appointment it has participated only for reasons of which it becomes aware after the appointment has been made.