Arbitration
63. Any difference under any provision of this Order (other than a difference which falls to be determined by the tribunal) shall, unless otherwise provided for in this Order and unless otherwise agreed between the parties, 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—
(a)in the case of matter pertaining to land and surveying of such land, the President of the Royal Institute of Chartered Surveyors;
(b)in the case of matters pertaining to archaeology, the President of the Institute of Field Archaeologists;
(c)in the case of matters of legal interpretation, the President of the Law Society;
(d)in the case of all other matters, the President of the Institution of Civil Engineers.