N.D. Cent. Code § 26.1-33-41
A designation in accordance with the terms of any insurance, annuity, or endowment contract when the designation in any agreement issued or entered into by the insurance company in connection therewith, supplemental thereto, or in settlement thereof, or the designation under a thrift, pension, retirement, death benefit, stock bonus, or profit-sharing contract, plan, system, or trust, created by an employer for the exclusive benefit of some or all of the employer's employees, or their beneficiary, of a person to be a beneficiary, payee, or owner of any right, title, or interest thereunder upon the death of another, is not subject to or defeated or impaired by any law relating to the signing and attestation of wills, even though the designation is revocable with the rights of the beneficiary, payee, or owner, or otherwise subject to defeasance.
N.D.C.C. § 26.1-33-41