When adopting a financing plan or levying taxes to cover the estimated costs of district business, including costs relating to implementing the general plan of improvements, as provided in §§ 46A-14-51 and 46A-14-54 to 46A-14-59, inclusive, and operations and maintenance expense as provided in § 46A-14-66 to 46A-14-69, inclusive, no annual general tax levy against taxable land and buildings within the district may exceed the amount that can be collected by a one-mill levy. This limitation does not apply to special assessments nor to assessments required to meet payments, including interest, on district bonds.
SDCL 46A-14-60