Sec. 17.178. BONDS INCONTESTABLE. The bonds or other securities issued by a political subdivision are valid, binding, and incontestable after:
(1) approval by the attorney general;
(2) registration by the comptroller; and
(3) purchase by and delivery to the board.
Amended by Acts 1987, 70th Leg., ch. 1103, Sec. 1, eff. Sept. 1, 1987.