N.C. Gen. Stat. § 159-57
On the date fixed for the public hearing, which shall be not earlier than six days after the date of publication of the bond order as introduced, the board shall hear anyone who may wish to be heard on the question of the validity of the order or the advisability of issuing the bonds. The hearing may be adjourned from time to time.
After the hearing, (and on the same day as the hearing, if the board so desires) the board may pass the order as introduced, or as amended. No amendment may increase the amount of bonds to be issued, nor substantially change the purpose of the issue. If the board wishes to increase the amount of bonds to be issued, or to substantially change the purpose of the issue, a new proceeding under this Article is required.
The provisions of any city charter, general law, or local act to the contrary notwithstanding, a bond order may be introduced at any regular or special meeting of the governing board and adopted at any such meeting by a simple majority of those present and voting, a quorum being present, and need not be published or subjected to any procedural requirements governing the adoption of ordinances or resolutions by the governing board other than the procedures set out in this Subchapter. Bond orders shall not be subject to the provisions of any city charter or local act concerning initiative and referendum.
N.C. Gen. Stat. § 159-57