N.C. Gen. Stat. § 156-97.1
In lieu of the bonds provided for in G.S. 156-97, the board of drainage commissioners may issue assessment anticipation notes of the district for an amount not to exceed the assessment levied by the commissioners and approved by the clerk of the superior court, less such amounts as shall have been paid in in cash to the treasurer. It shall be optional with the board of drainage commissioners in issuing assessment anticipation notes to issue serial notes in any denominations bearing not more than fourteen percent (14%) interest from the date of issue, payable semiannually. The first annual installment of principal shall be due not less than one year nor more than two years after date thereof, and each annual installment of principal shall not be less than two percent (2%) nor more than twenty-five percent (25%) of the total amount of notes authorized and issued.
Such assessment anticipation notes, when issued, shall have the same force and effect of bonds issued under the provisions of this Article and shall be collectible in the same manner.
The commissioners may issue either serial notes or an amortized note.
N.C. Gen. Stat. § 156-97.1