Art. R41: Multiparty Arbitration
R41.1 Plurality of Claimants / Respondents
If the request for arbitration names several Claimants and/or Respondents, CAS shall proceed with the formation of the Panel in accordance with the number of arbitrators and the method of appointment agreed by all parties. In the absence of agreement, the President of the Division shall decide on the number of arbitrators in accordance with Article R40.1.
If a sole arbitrator is to be appointed, Article R40.2 shall apply. If three arbitrators are to be appointed and there are several Claimants, the Claimants shall jointly nominate an arbitrator. If three arbitrators are to be appointed and there are several Respondents, the Respondents shall jointly nominate an arbitrator. In the absence of such a joint nomination, the President of the Division shall proceed with the particular appointment.
If there are three or more parties with divergent interests, both arbitrators shall be appointed in accordance with the agreement between the parties. In the absence of agreement, the arbitrators shall be appointed by the President of the Division in accordance with Article R40.2.
In all cases, the arbitrators shall select the President of the Panel in accordance with Article R40.2.
R41.2 Joinder
If a Respondent intends to cause a third party to participate in the arbitration, it shall so state in its answer, together with the reasons therefor, and file an additional copy of its answer. The CAS Court Office shall communicate this copy to the person whose participation is requested and fix a time limit for such person to state its position on its participation and to submit a response pursuant to Article R39. It shall also fix a time limit for the Claimant to express its position on the participation of the third party.
R41.3 Intervention
If a third party wishes to participate as a party to the arbitration, it shall file an application to this effect with the CAS Court Office, together with the reasons therefor within 10 days after the arbitration has become known to the intervenor, provided that such application is filed prior to the hearing, or prior to the closing of the evidentiary proceedings if no hearing is held. The CAS Court Office shall communicate a copy of this application to the parties and fix a time limit for them to express their position on the participation of the third party and to file, to the extent applicable, an answer pursuant to Article R39.
R41.4 Joint Provisions on Joinder and Intervention
A third party may only participate in the arbitration if it is bound by the arbitration agreement or if it and the other parties agree in writing.
Upon expiration of the time limit set in Articles R41.2 and R41.3, the President of the Division or the Panel, if it has already been appointed, shall decide on the participation of the third party, taking into account, in particular, the prima facie existence of an arbitration agreement as contemplated in Article R39. The decision of the President of the Division shall be without prejudice to the decision of the Panel on the same matter.
If the President of the Division accepts the participation of the third party, CAS shall proceed with the formation of the Panel in accordance with the number of arbitrators and the method of appointment agreed by all parties. In the absence of agreement between the parties, the President of the Division shall decide on the number of arbitrators in accordance with Article R40.1. If a sole arbitrator is to be appointed, Article R40.2 shall apply. If three arbitrators are to be appointed, the arbitrators shall be appointed by the President of the Division and shall nominate the President of the Panel in accordance with Article R40.2.
Regardless of the decision of the Panel on the participation of the third party, the formation of the Panel cannot be challenged. In the event that the Panel accepts the participation, it shall, if required, issue related procedural directions.
After consideration of submissions by all parties concerned, the Panel shall determine the status of the third party and its rights in the procedure.
After consideration of submissions by all parties concerned, the Panel may allow the filing of amicus curiae briefs, on such terms and conditions as it may fix.