Where any school district or consolidated school district or any independent school district, in cases provided in this subpart, has outstanding schoolhouse bonds or shall hereafter issue, in accordance with the laws of this state, any such bonds, and it becomes necessary or advisable to refund, retire, or refinance such bonds, the refunding, retirement, or refinancing shall be done in accordance with the procedure and in the manner provided in this subpart.
OCGA § 20-2-450