N.D. Cent. Code § 26.1-16-22
The notice of assessment in each case must provide that if the member to whom the notice is directed does not make payment within the time specified therein, which may be not less than fifteen days nor more than forty-five days after the date of the notice, the member's certificate will be canceled. If payment is not made within that time, a notice of cancellation must be mailed to the member informing the member that if the assessment is not paid within ten days from the mailing of the notice of cancellation, the member's certificate will be canceled. The notice of cancellation must be mailed to the member at the member's last-known address immediately after the expiration of the time specified in the notice of assessment, and proof of the mailing must be established on forms provided for that purpose by the United States postal service. If payment is not made within the time specified in the notice of cancellation, the certificate must be canceled. If payment of an assessment is made to the society subsequent to the date of cancellation of the certificate, the payment may be considered as a reinstatement fee and placed in the expense fund of the society.
N.D.C.C. § 26.1-16-22