Tex. Nat. Res. Code § 62.131
For the purpose of acquiring, developing, improving, and enlarging public recreational areas and facilities, the board may issue revenue bonds payable solely from:
Acts 1977, 65th Leg., p. 2497, ch. 871, art. I, Sec. 1, eff. Sept. 1, 1977.
Amended by Acts 2003, 78th Leg., ch. 1276, Sec. 13.003(a), eff. Sept. 1, 2003.