(1)  The Regulator may amend or revoke under section 40AA(3) of the Act a price-regulated retail service price determination if, in the opinion of the Regulator, the regulated offer retailer to which the determination relates is affected materially and adversely as a result of the making, amendment or revocation of a transmission determination or a distribution determination.

(2)  The Regulator may amend or revoke a price-regulated retail service price determination under section 40AA(3) of the Act if the Regulator determines –

(a) that the determination was made on the basis of information, provided by the regulated offer retailer to which the determination relates, that was false or misleading in a material particular; or

(b) that there is a material error in the determination; or

(c) that –

(i) the regulated offer retailer to which the determination relates is affected materially and adversely by the determination as a result of an event which is beyond the retailer's reasonable control and was not taken into account in the terms of the determination; and

(ii) the benefits of amending or revoking the determination would outweigh any detriment, to the regulated offer retailer to which the determination relates, or any customer of such a retailer, that might result from the amendment or revocation of the determination.

(3)  An amendment or revocation of a price-regulated retail service price determination takes effect on the date specified in the amendment or revocation.

(4)  Regulation 10 applies in relation to an amendment or revocation under section 40AA(3) of the Act of a price-regulated retail service price determination as if the amendment or revocation were a price-regulated retail service price determination.