N.D. Cent. Code § 43-32-03: Tenure of members - Vacancies and oath of office

The term of office of each member of the board is three years and until a successor is appointed and qualified. The governor shall fill all vacancies by appointment. In case of a vacancy before the expiration of a term, the appointment must be for the remainder of the term only. An individual appointed to the board qualifies by taking the oath required of civil officers.