(1)  The Director may, after taking the expert advice, if any, that the Director thinks appropriate, determine an application under section 137 for an administrative review of a relevant decision by –

(a) confirming the decision; or

(b) amending the decision; or

(c) substituting another decision for the decision.

(2)  The Director must give the applicant written notice of the Director's determination of the application for an administrative review of the relevant decision as soon as practicable and, in any case, no later than 45 days after receiving the application.

(3)  The Director must, by notice served on the applicant, notify the applicant of –

(a) the determination made; and

(b) the findings on material questions of fact; and

(c) the evidence or other material on which the findings are based; and

(d) the reasons for the determination.