Tex. Elec. Code § 161.006
A political party may not hold a precinct convention in the same building in which another party is holding a precinct convention on the same day unless:
Acts 1985, 69th Leg., ch. 211, Sec. 1, eff. Jan. 1, 1986.
Amended by Acts 1997, 75th Leg., ch. 1349, Sec. 57, eff. Sept. 1, 1997;
Acts 1997, 75th Leg., ch. 1350, Sec. 7, eff. Sept. 1, 1997.