Tex. Gov't Code § 391.001
(b) This chapter does not affect the designation of:
(1) a state symbol or a place designation made by:
(2) a day, week, or month for recognition made by:
Added by Acts 2001, 77th Leg., ch. 395, Sec. 1, eff. Sept. 1, 2001.
Acts 2009, 81st Leg., R.S., Ch. 1081 (H.B. 4767), Sec. 2, eff. June 19, 2009.