N.C. Gen. Stat. § 159-162
The faith and credit of the issuing unit are hereby pledged for the payment of each note issued in anticipation of the sale of general obligation bonds according to its terms, and the power and obligation of the issuing unit to levy taxes and raise other revenues for the prompt payment of such notes shall be unrestricted as to rate or amount, notwithstanding any other provisions of law. The proceeds of each general obligation bond issue are also hereby pledged for the payment of any notes issued in anticipation of the sale thereof, and any such notes shall be retired from the proceeds of the bonds as the first priority. In the discretion of the governing board, notes issued in anticipation of the sale of general obligation bonds may be paid from current revenues or other funds instead of from the bond proceeds, but if this is done, the bond order shall be amended to reduce the aggregate authorized principal amount by the amount of the bond anticipation notes and accrued interest thereon. Such an amendment need not be published and shall take effect upon its passage.
N.C. Gen. Stat. § 159-162