(1) The Commonwealth water efficiency laws, as in force from time to time and as modified by or under this Act, apply as a law of the Territory.
(2) The Commonwealth water efficiency laws so apply as if they extended to matters in relation to which the Territory may make laws:
(a) whether or not the Commonwealth may make laws in relation to those matters; and
(b) even though the Commonwealth water efficiency laws provide that they apply only to specified matters with respect to which the Commonwealth may make laws.