The superintendent of the adjustment school shall, before entering upon the discharge of his or her duties, make and file with the governing board an oath that he or she will faithfully and impartially discharge his or her duties. The superintendent shall also file with the governing board a bond, running to the State of California in a sum the board may determine, and with sureties to be approved by the board, conditioned upon the faithful performance of his or her duties. The premium of the bond shall be a part of the cost of maintaining the adjustment school.