524. The Régie may, in respect of a person who is the subject of a report contemplated in section 523,(a) suspend or refuse to issue or to renew the person’s driver’s licence or learner’s licence, or change its conditions, or
(b) require the person to undergo another medical or optometrical examination by such physician or optometrist as the Régie may indicate and produce the report thereof to the Régie without delay.