Tex. Elec. Code § 145.039
If a candidate dies or is declared ineligible after the 74th day before election day, the candidate's name shall be placed on the ballot.
Acts 1985, 69th Leg., ch. 211, Sec. 1, eff. Jan. 1, 1986.
Acts 2005, 79th Leg., Ch. 1109 (H.B. 2339), Sec. 10, eff. September 1, 2005.