New South Wales Consolidated Acts(cf former s 60)
(1) Any weekly payment of compensation may, because of a change of circumstances, be reviewed by the Commission at the request of the employer or the worker or of the Authority.
(2) On any such review:(a) the weekly payment may be ended, reduced or increased (but subject to the provisions of this Division relating to the amount of the weekly payment), and(b) the amount of the weekly payment (if any) shall, in default of agreement, be determined by the Commission.
(2A) If on any such review a weekly payment of compensation is ended or reduced with effect from a day that is earlier than the date of the Commission’s order on the review, the Commission may order the worker to refund the amount of any payments made to the worker to which the worker is not entitled as a result of the order on the review.
(3) On any such review, the amount of any weekly payment payable in respect of an injury may be increased to such an amount as would have been awarded if the worker had, at the time of the injury, been earning the wage or salary which the worker would probably have been earning, at the date of the review, if the worker had remained uninjured and continued to be employed in the same or some comparable employment.
(4) A review under this section shall be given such priority as is reasonably practicable, and any necessary directions may be given to expedite the hearing of the matter.