If a concessioner requests arbitration of the construction cost of a capital improvement determined by the Director, the request must be made in writing to the Director within 3 months of the date of the Director's determination of construction cost under Sec. 51.56. The arbitration procedures are described in Sec. 51.51. The decision of the arbitration panel as to the construction cost of the capital improvement will be binding on the concessioner and the Director. [66 FR 35083, July 3, 2001]