27. In its award, the council of arbitration may decide that the arbitration expenses, which are the expenses incurred by the Order for the arbitration, shall be borne by either one party or both parties. The total expenses may not exceed 15% of the amount to which the arbitration pertains.
Where the account in dispute is upheld in whole or in part, or where a reimbursements is granted, the council of arbitration may add thereto interest and an indemnity determined in accordance with articles 1618 and 1619 of the Civil Code from the date of the application for conciliation.