The vacancy shall be filled not later than the adjournment sine die of the next regular session of the General Assembly. The election shall be for the remainder of the unexpired term. Whenever a member shall fail, for any reason other than ill health or service in the interest of the State or nation, to be present for four successive regular meetings of the Board, his place as a member shall be deemed vacant.
N.C. Gen. Stat. § 116-7