(1) For the proper hearing of an appeal, the appeal body may order—(a) anything necessary be supplied; or(b) defects or errors be corrected.
(2) The appeal body may make the order at any time before or after the start of the hearing.
(3) The order may be made on conditions.
(4) Costs of the order are in the appeal body’s discretion, except to the extent provided under a regulation.
(5) All parties concerned must comply with the order.