(1) The Authority and other agencies of the Commonwealth must perform their functions, and exercise their powers, consistently with, and in a manner that gives effect to, the matters included or specified in the Basin Plan under this Part.
(2) Subsection (1) does not apply to the performance of a function, or the exercise of a power, that affects State water sharing arrangements or Border Rivers water sharing arrangements, unless:
(a) the Murray - Darling Basin Ministerial Council has agreed to the Basin Plan applying to the performance of the function or the exercise of the power; or
(b) the performance of the function or the exercise of the power takes place at a time when, under clause 135 of the Agreement, the provisions of the Basin Plan required by this Part are taken to be a Schedule to the Agreement.
(3) To avoid doubt, subsection (1) does not apply to the Authority's functions and powers under this Part.