N.C. Gen. Stat. § 160A-208: Continuing taxes.

Except for taxes levied on property under the Machinery Act, a city may impose an authorized tax by a permanent ordinance that shall stand from year to year until amended or repealed, and it shall not be necessary to reimpose the tax in each annual budget ordinance. (1971, c. 698, s. 1; 1973, c. 426, s. 30.)