N.D. Cent. Code § 57-15-02: Determination of rate

The tax rate of all taxes, except taxes the rate of which is fixed by law, must be calculated and fixed by the county auditor within the limitations prescribed by statute. If any municipality levies a greater amount than the prescribed maximum legal rate of levy will produce, the county auditor shall extend only such amount of tax as the prescribed maximum legal rate of levy will produce. The rate must be based and computed on the taxable valuation of taxable property in the municipality or district levying the tax. The rate of all taxes must be calculated by the county auditor in mills, tenths, and hundredths of mills.