(1) Change to the consideration must be arbitrated as follows:
(a) the supplier must apply to an arbitrator for the appointment of an assessor to determine an appropriate change to the consideration;
(b) the arbitrator must appoint as an assessor a person whom the arbitrator is satisfied:
(i) is suitably qualified to determine an appropriate change to the consideration; and
(ii) is independent of both the supplier and the recipient;
(c) in determining an appropriate change, the assessor must only take into account the impact of the New Tax System changes on the supplier's costs and expenses;
(d) the assessor's determination of an appropriate change must be made within 28 days of the end of the offer period and:
(i) be in writing, signed and dated by the assessor; or
(ii) be in the form specified in the regulations.
(2) The supplier must not apply under paragraph ( 1)(a) until after:
(a) the end of the initial offer period; or
(b) the recipient gives to the supplier a written rejection of the initial offer;
whichever happens earlier.
(3) In this section:
"New Tax System changes" means the following:
(a) the amendment of the former Sales Tax (Exemptions and Classifications) Act 1992 made by this Act;
(b) the ending of sales tax, as provided for in the former A New Tax System (End of Sales Tax) Act 1999 ;
(c) the imposition of GST;
(d) any other changes (including changes to Commonwealth, State or Territory laws) prescribed by the regulations for the purposes of this definition.