(2) The condition of a water entitlement
imposed under section 20X or 20AB to control the quantity of water that may be
taken under the entitlement (with any modification effected under
section 20XA, 20Z or 20AA) is modified to the extent necessary to permit any
increase, and to require any decrease, effected under subsection (1).
(3) The
Ministerial Corporation may waive a decrease that has been imposed under
subsection (1) (b) and, where a decrease is waived, the modification of a
condition effected by subsection (2) in relation to the decrease ceases to
have effect.