N.D. Cent. Code § 14-20-18: (308) Challenge after expiration of period for rescission

1.After the period for rescission under section 14-20-17 has expired, a signatory of an acknowledgment of paternity or denial of paternity may commence a proceeding to challenge the acknowledgment or denial only:

a.On the basis of fraud, duress, or material mistake of fact; and

b.Within two years after the acknowledgment or denial is filed with the department of health and human services.

2.A party challenging an acknowledgment of paternity or denial of paternity has the burden of proof.