15. (1) If a member of the Commission dies, resigns, ceases to be qualified for office and ceases to hold office or is removed from office, the President may appoint a person to be a member of the Commission to fill the casual vacancy so occasioned in the same manner as the member of the Commission who occasioned the casual vacancy was appointed.

(2) Sections 12(4) and 13 shall, with any necessary modifications, apply to the appointment of a person to be a member of the Commission under this section as it applies to the appointment of a person to be a member of the Commission under that section.