81   Amendments and irregularities

(1)  The Tribunal may, in any proceedings before it, make any amendments to the proceedings that the Tribunal considers to be necessary in the interests of justice.

(2)  Any such amendment may be made:

(a)  at any stage of the proceedings (including the commencement or purported commencement of proceedings), and

(b)  on such terms as the Tribunal thinks fit (including, if it can award costs in the proceedings, terms as to costs).

(3)  If this Act, the regulations or a rule of the Tribunal is not complied with in relation to the commencement (or purported commencement) of proceedings or conduct of proceedings before the Tribunal, the failure to comply is to be treated as an irregularity and does not nullify the proceedings, any step taken in the proceedings or any decision in the proceedings.

(4)  For the purposes of subsection (3), the Tribunal may wholly or partly set aside the proceedings, a step taken in the proceedings, or a decision in the proceedings.