N.D. Cent. Code § 10-33-35: Resignation of directors

1.A director may resign at any time by giving written notice to the corporation. The resignation is effective without acceptance when the notice is given to the corporation, unless a later effective time is specified in the notice.

2.If a resignation is made effective at a later date, the board may fill the pending vacancy before the effective date if the board provides that the successor does not take office until the effective date.