(a) Interim bonds shall mature not later than 10 years from the date they are issued and shall be redeemable at any time before they mature, as provided in this subchapter.
(b) The principal amount of the interim bonds may not be more than 25 percent of the principal amount of the district's bonds which have been voted but not sold.
(c) Before the issuance of the interim bonds, the board, by resolution, may limit the issue to any amount less than 25 percent, and after the amount is determined and fixed by the resolution, no additional interim bonds may be issued and sold until all outstanding interim bonds are paid.