The bond bank authority consists of the following five directors: the commissioner of revenue, the commissioner of commerce, community, and economic development, who shall each be a director ex officio with voting privileges, and three directors appointed by the governor. The appointment of each director other than the commissioner of revenue and the commissioner of commerce, community, and economic development is subject to confirmation by the legislature. The three directors appointed by the governor serve at the governor's pleasure for four-year terms. They must be residents of the state and qualified voters at the time of appointment and shall comply with the requirements of AS 39.50 (public official financial disclosure). Each director shall hold office for the term of appointment and until a successor has been appointed and qualified. A director is eligible for reappointment. A vacancy in a directorship occurring other than by expiration of term shall be filled in the same manner as the original appointment but for the unexpired term only. Each director before entering upon the duties of office shall take and subscribe to an oath to perform the duties faithfully, impartially, and justly to the best of the director's ability. A record of the oath shall be filed in the office of the governor.