In the event that two-thirds of the votes cast at an election held as
provided in Code Sections 20-2-451 through 20-2-455 are in favor of refunding “outstanding schoolhouse bonds” and such two-thirds are also a majority of all the voters qualified to vote in the election, then the officials as named in Code Sections 20-2-451 through 20-2-455 shall so declare the result; and such officials shall have the power and authority, after validation as provided in Code Section 20-2-470, to issue such refunding schoolhouse bonds for sale or exchange for the purpose of retiring the outstanding schoolhouse bonds in the district under all of the regulations now provided by law for school district bonds.