N.D. Cent. Code § 26.1-30.1-03
Cancellation under subsections 2 through 9 of section 26.1-30.1-02 is not effective prior to thirty days after notice to the policyholder. The notice of cancellation must contain a specific reason for cancellation as provided in section 26.1-30.1-02. A policy may not be canceled for nonpayment of premium pursuant to subsection 1 of section 26.1-30.1-02 unless the insurer, at least ten days prior to the effective cancellation date, has given notice to the policyholder of the amount of premium due and the due date. The notice must state the effect of nonpayment by the due date. No cancellation for nonpayment of premium is effective if payment of the amount due is made prior to the effective date set forth in the notice.
N.D.C.C. § 26.1-30.1-03