21. Delegation of powers---(1) The Council may from time to time, in
 respect of a specified matter or class of matters, or in respect of a
 specified area within New Zealand, by writing delegate any of its powers
 to a member, officer, or committee of the Council.

   (2) Notwithstanding subsection (1) of this section, the Council shall
 not delegate to a member, officer, or committee---
   (a) The power of delegation conferred by subsection (1) of this
         section; or
   (b) Any power to borrow money.

   (3) Notwithstanding subsection (1) of this section, the Council shall
 not delegate to a member officer, or committee (other than the national
 executive committee or a regional executive committee) any power to
 expend money or otherwise to deal with any property of the Council.

   (4) Subject to any general or special directions given to him or to it
 by the Council, a member, officer, or committee to whom any powers are
 delegated under this section may exercise those powers in the same
 manner and with the same effect as if they had been conferred on him or
 on it directly by this Act and not by delegation.

   (5) Every member, officer, or committee purporting to act pursuant to
 a delegation under this section shall, in the absence of proof to the
 contrary, be presumed to be acting in accordance with the terms of the
 delegation.

   (6) Every delegation under this section shall be revocable at will,
 and no such delegation shall prevent the exercise of any power by the
 Council.