Tex. Elec. Code § 146.083
A declaration of write-in candidacy must be filed not later than 5 p.m. on the date an application for a place on the ballot is required to be filed. A write-in candidate may not withdraw from an election after 5 p.m. of the fifth day after the deadline for filing a declaration of write-in candidacy.
Added by Acts 2001, 77th Leg., ch. 17, Sec. 3, eff. Jan. 1, 2002.
Acts 2005, 79th Leg., Ch. 1107 (H.B. 2309), Sec. 1.23, eff. September 1, 2005.
Acts 2015, 84th Leg., R.S., Ch. 84 (S.B. 1703), Sec. 18, eff. September 1, 2015.