(710 ILCS 30/Art. 10 heading)

(710 ILCS 30/10-5) Sec. 10-5. Number of arbitrators. The parties are free to determine the number of arbitrators. In the event this determination is not made, the arbitration shall be conducted by a sole arbitrator, selected in accordance with the provisions of subsection (d) of Section 10-10 of this Act. (Source: P.A. 90-631, eff. 7-24-98.)

(710 ILCS 30/10-10) Sec. 10-10. Appointment of arbitrators. (a) No person shall be precluded by reason of his or her nationality from acting as an arbitrator, unless otherwise agreed by the parties. (b) The parties are free to agree on a procedure of appointing the arbitrator or arbitrators, subject to the provisions of subsections (e) and (f) of this Section. (c) In an arbitration with 3 arbitrators and where the parties fail to reach an agreement on an appointment procedure, each party shall appoint one arbitrator, and the 2 arbitrators thus appointed shall appoint the third arbitrator. If a party fails to appoint the arbitrator within 30 days of receipt of a request to do so from the other party or if the 2 arbitrators fail to agree on the third arbitrator within 30 days of their appointment, the appointment shall be made, upon request of a party, by the court or other authority specified in Section 1-30 of this Act. (d) In an arbitration with a sole arbitrator and where the parties fail to reach an agreement on an appointment procedure, the arbitrator shall be appointed, upon request of a party, by the court specified in Section 1-30 of this Act. (e) Where, under an appointment procedure agreed upon by the parties, (i) a party fails to act as required under the procedure or (ii) the parties or the two party-appointed arbitrators are unable to reach an agreement expected of them under the procedure or (iii) a third party, including an institution, fails to perform any function entrusted to it under the procedure, any party may request the court specified in Section 1-30 of this Act to take the necessary measure, unless the agreement on the appointment procedure provides other means of securing the appointment. (f) A decision on a matter entrusted by subsections (c), (d), and (e) of this Section to the court specified in Section 1-30 of this Act is not subject to appeal; provided that this provision shall not preclude the parties from raising any ground for setting aside or refusing to recognize or enforce an arbitral award to the extent otherwise permitted under applicable federal law. The court, in appointing an arbitrator, shall have due regard to any qualifications required of the arbitrator by the agreement of the parties and to any considerations that are likely to secure the appointment of an independent and impartial arbitrator and, in the case of a sole or third arbitrator, shall take into account as well the advisability of appointing an arbitrator of a nationality other than those of the parties. (Source: P.A. 90-631, eff. 7-24-98.)

(710 ILCS 30/10-15) Sec. 10-15. Grounds for challenge. (a) When a person is approached in connection with his or her possible appointment as an arbitrator, that person shall disclose any circumstances likely to give rise to justifiable doubts as to his or her impartiality or independence. An arbitrator, from the time of his or her appointment and throughout the arbitral proceedings, shall without delay disclose any of these circumstances to the parties unless they have already been informed of them by the arbitrator. (b) An arbitrator may be challenged only if circumstances exist that give rise to justifiable doubts as to his or her impartiality or independence or if he or she does not possess qualifications agreed to by the parties. A party may challenge an arbitrator it has appointed, or in whose appointment it has participated, only for reasons of which that party becomes aware after the appointment has been made. (Source: P.A. 90-631, eff. 7-24-98.)

(710 ILCS 30/10-20) Sec. 10-20. Challenge procedure. (a) The parties are free to agree on a procedure for challenging an arbitrator, subject to the provisions of subsection (c) of this Section. (b) If the parties are unable to reach an agreement, a party that intends to challenge an arbitrator shall, within 15 days after becoming aware of the constitution of the arbitral tribunal or after becoming aware of any circumstance referred to in subsection (b) of Section 10-15 of this Act, send a written statement of the reasons for the challenge to the arbitral tribunal. Unless the challenged arbitrator withdraws from office or the other party agrees to the challenge, the arbitral tribunal shall decide on the challenge. (c) If a challenge under any procedure agreed upon by the parties or under the procedure of subsection (b) of this Section is not successful, the challenging party may request, within 30 days after having received notice of the decision rejecting the challenge, the court specified in Section 1-30 of this Act to decide on the challenge, which decision is not subject to appeal; provided that this provision shall not preclude the parties from raising any ground for setting aside or refusing to recognize or enforce an arbitral award to the extent otherwise permitted under applicable federal law. While the request is pending, the arbitral tribunal, including the challenged arbitrator, may continue the arbitral proceedings and make an award. (Source: P.A. 90-631, eff. 7-24-98.)

(710 ILCS 30/10-25) Sec. 10-25. Failure or impossibility to act. (a) If an arbitrator becomes de jure or de facto unable to perform his or her functions or for other reasons fails to act without undue delay, that arbitrator's mandate terminates if he or she withdraws from office or if the parties agree on the termination. Otherwise, if a controversy remains concerning any of these grounds, any party may request the court specified in Section 1-30 of this Act to decide on the termination of the mandate, which decision is not subject to appeal. (b) If, under this Section or under subsection (b) of Section 10-20 of this Act, an arbitrator withdraws from office or a party agrees to the termination of the mandate of an arbitrator, this does not imply acceptance of the validity of any ground referred to in this Section or subsection (b) of Section 10-15 of this Act. (Source: P.A. 90-631, eff. 7-24-98.)

(710 ILCS 30/10-30) Sec. 10-30. Appointment of substitute arbitrator. Where the mandate of an arbitrator terminates under Sections 10-20 or 10-25 of this Act or because of his or her withdrawal from office for any other reason or because of the revocation or termination of that arbitrator's mandate, a substitute arbitrator shall be appointed according to the rules or procedures that were applicable to the appointment of the arbitrator being replaced. (Source: P.A. 90-631, eff. 7-24-98.)