16.— (1) A member of the Board may resign by letter to the Minister and the resignation takes effect on the later of—

(a) the date specified in the letter, and

(b) the receipt of the letter by the Minister.

(2) If a member of the Board dies, resigns, ceases to be qualified for office, ceases to hold office or is removed from office, the Minister may appoint a person to fill the casual vacancy so occasioned.

(3) A person appointed to be a member of the Board under this section—

(a) holds office for that period of the term of office of the member who occasioned the casual vacancy concerned that remains unexpired at the date of the appointment, and

(b) subject to section 13(8), is eligible for reappointment as a member of the Board on the expiry of that period.