(1) The Minister may, by legislative instrument, make rules ( operating rules ) relating to the Commonwealth Environmental Water Holder:
(a) purchasing, disposing of and otherwise dealing in water and water access rights; and
(b) entering into contracts (including options contracts) for the purposes of such purchasing, disposal or other dealing.
(2) Operating rules that the Minister makes under subsection (1) must not:
(a) impose obligations on any person other than the Commonwealth Environmental Water Holder; or
(b) have the effect of overriding or limiting the operation of a law of a State.