6. Section 12 of the Principal Act is amended by omitting subsection (9) and substituting the following subsection:
“(9) A relevant instrument prepared by the Commissioner and approved by the Minister in accordance with this section may—
(a) provide for the reconsideration of decisions of the Commissioner that are specified in the instrument; and
(b) provide for application to be made to the Administrative Appeals Tribunal for review of decisions of the Commissioner that are specified in the instrument.”.