12. Interest

12(1) On the basis of evidence presented, the arbitrator(s) may order simple or compound interest to be paid in an award.

13. Costs

13(1) The arbitrator(s) shall determine liability for costs and may apportion costs between the parties.

13(2) In awarding costs, the arbitrator(s) shall take into account the role of the parties concerning the conduct of the proceedings and the failure of any party to comply with these Rules or the orders of the arbitrator(s).

13(3) In the event the arbitrator(s) awards costs, the Award shall specify the amount of the fees and expenses so awarded or the method for the determination of those amounts.