Tex. Tax Code § 5.09
(b) Not later than December 31 of each even-numbered year, the comptroller shall:
Acts 1979, 66th Leg., p. 2223, ch. 841, Sec. 1, eff. Jan. 1, 1980.
Amended by Acts 1981, 67th Leg., 1st C.S., p. 119, ch. 13, Sec. 10, eff. Aug. 14, 1981;
Acts 1989, 71st Leg., ch. 384, Sec. 8, eff. Sept. 1, 1989;
Acts 1991, 72nd Leg., 2nd C.S., ch. 6, Sec. 5, eff. Sept. 1, 1991;
Acts 1991, 72nd Leg., 2nd C.S., ch. 6, Sec. 66, eff. Jan. 8, 1992.
Acts 2011, 82nd Leg., 1st C.S., Ch. 4 (S.B. 1), Sec. 17.04, eff. September 28, 2011.