(a) Issue and exchange, for any such indebtedness, its bonds bearing interest at a rate determined by the district school board; or
(b) Issue and sell such bonds and apply the proceeds of such sale in payment of the indebtedness for the payment of which the refunding bonds are proposed to be issued.
(2) Refunding bonds issued under subsection (1) of this section shall in all respects conform to, and be governed, as to their issue, by the provisions of ORS chapter 287A.
(3) The debt limitations imposed by law shall not affect the right of any school district to issue refunding bonds under authority of this section. The validity of any bonds so issued, or of the indebtedness thereby refunded, shall not thereafter be open to contest by the school district or by any person for any reason. [Amended by 1965 c.100 §60; 1965 c.315 §1; 1981 c.94 §28; 1983 c.347 §24; 2007 c.783 §129]