Article 46 ArbitrationI1

Except where otherwise expressly provided for in this Order and unless otherwise agreed between the parties, any difference under any provision of this Order (other than a difference which falls to be determined by the Lands Chamber of the Upper Tribunal) must be referred to and settled by a single arbitrator to be agreed between the parties or, failing agreement, to be appointed on the application of either party (after giving notice in writing to the other) by the President of the Institution of Civil Engineers.