N.D. Cent. Code § 15-55-05
The proceeds from the sale of the bonds herein authorized must be deposited to the credit of the board and kept in a separate fund in the state treasury, in the Bank of North Dakota or in a bank which is a duly designated depository for state funds and is a member of the federal deposit insurance corporation. Provided, that when such funds are deposited in a bank other than the Bank of North Dakota or a bank which is not a duly designated depository for state funds, such bank must be required to pledge, as security for such deposit, securities in an amount equal to the sum by which such deposit exceeds the amount of federal deposit insurance corporation insurance. Securities which are eligible for such pledge are notes or bonds issued by the United States government, its agencies or instrumentalities, all bonds and notes guaranteed by the United States government, federal land bank bonds, or bonds issued by any state of the United States. In lieu of the deposit of such securities, a surety bond may be accepted from the bank designated as a depository in a sum equal to the amount of funds such bank may receive in excess of the amount guaranteed by the federal deposit insurance corporation. Such proceeds must be used solely for the purpose for which the bonds are authorized except that the board may invest such funds in direct obligations of, or obligations the principal of and interest on which are guaranteed by, the United States of America, or obligations of the state of North Dakota or of any municipality as defined in section 21-03-01 prior to or during building or other campus improvement construction except to the extent such investment is prohibited or restricted by any covenant made with or for the benefit of bondholders. The board is authorized to make all contracts and to cause the execution of all instruments which in its discretion may be deemed necessary or advisable to provide for the construction, furnishing, and equipment of the building or other campus improvement or for the sale of the bonds or for interim financing deemed necessary or advisable pending the sale of the bonds and pledging the proceeds of the bonds.
N.D.C.C. § 15-55-05