27. In its award, the council of arbitration has full discretion to determine arbitration costs, namely the expenses incurred by the Order for arbitration. The total amount of arbitration costs shall not exceed 15% of the amount in dispute, whether attributed to one party or to both. Where payment thereof is ordered, the minimum amount shall be $50.
Where the account in dispute is upheld in whole or in part, or where a reimbursement is awarded, the council of arbitration may also add interest and an indemnity, calculated in accordance with articles 1618 and 1619 of the Civil Code from the date of the application for conciliation.