Tex. Spec. Dist. Code § 1006.202
(a) At the time general obligation bonds are issued under Section 1006.201, the board shall impose an ad valorem tax at a rate sufficient to:
Added by Acts 2005, 79th Leg., Ch. 729 (H.B. 2019), Sec. 1.01, eff. April 1, 2007.
Acts 2007, 80th Leg., R.S., Ch. 921 (H.B. 3167), Sec. 13.002, eff. September 1, 2007.