N.C. Gen. Stat. § 106-565: Subsequent referendum.

In the event such referendum so to be conducted as herein provided shall not be supported by two thirds or more of those eligible for participation therein and voting therein, then the duly certified agency conducting the said referendum shall have full power and authority to call another referendum for the purposes herein set forth in the next succeeding year, on the question of an annual assessment for three years. (1947, c. 1018, s. 16.)