A vote on a particular measure must be indicated by placing an "X" or other mark that clearly shows the voter's intent in the appropriate square that is beside the proposition and that indicates the way the voter desires to vote on the measure.
Tex. Elec. Code § 64.006
MARKING THE BALLOT FOR MEASURE
Acts 1985, 69th Leg., ch. 211, Sec. 1, eff
Official source: Texas Constitution and Statutes. Reproduced from public-domain Texas statutes; confirm against the official source for the current text. Not legal advice.