Tex. Agric. Code § 52.038
Any corporation or association organized under prior law before March 1, 1921, may elect, by a majority vote of its members or stockholders, to adopt this chapter and become subject to it by:
Acts 1981, 67th Leg., p. 1107, ch. 388, Sec. 1, eff. Sept. 1, 1981.
Acts 2009, 81st Leg., R.S., Ch. 506 (S.B. 1016), Sec. 5.08, eff. September 1, 2009.