N.D. Cent. Code § 40-61-13
Except as otherwise provided in the Constitution of North Dakota, the bonds are hereby made securities in which all public officers and bodies of this state and all municipalities and municipal subdivisions, all banks, bankers, trust companies, savings banks, savings associations, including savings and loan associations, investment companies, and other persons carrying on a banking business, and all other persons whatsoever except as hereinafter provided, who are now or may hereafter be authorized to invest in bonds or other obligations of the state, may properly and legally invest funds, including capital in their control or belonging to them. However, notwithstanding the provisions of any other general or special law to the contrary, the bonds are not eligible for the investment of funds, including capital, of trusts, estates, or guardianships under the control of individual administrators, guardians, executors, trustees, and other individual fiduciaries. The bonds are authorized securities which may be deposited with and shall be received by all public officers and bodies of this state and all municipalities and municipal subdivisions for any purpose for which the deposit of bonds or other obligations of this state is now or may hereafter be authorized.
N.D.C.C. § 40-61-13