Where the Governor - General has delegated a power to the Treasurer under section 51H:
(a) the Governor - General may give directions to the Treasurer with respect to the exercise of that power; and
(b) if the Treasurer has under subsection 51H(2) authorized another person to exercise that power, the Treasurer:
(i) shall, if the Governor - General gives a direction to the Treasurer under paragraph (a) with respect to the exercise of that power, give a corresponding direction to the other person; and
(ii) may, subject to any direction given to the Treasurer under paragraph (a), give directions to the other person with respect to the exercise of that power.