23.—(1) The Commission shall conduct a review as soon as reasonably practicable after the date notified to the parties as the date of commencement of the review.
(2) Subject to paragraph (3), a review shall be conducted without an oral hearing unless the Commission orders otherwise.
(3) The first review of a certificate shall, unless the Commission orders otherwise, be conducted at an oral hearing if there has not previously been an oral hearing of an appeal against the certificate.
(4) Where paragraph (3) does not apply, a party or the special advocate may apply to the Commission for a review to be conducted at an oral hearing.
(5) An application under paragraph (4)—
(a)must be made in writing; and
(b)must state the applicant’s reasons for requesting an oral hearing.