(a) A candidate must file a withdrawal request with the authority with whom applications for a place on the ballot are required to be filed.
(b) If the authority with whom applications for a place on the ballot are required to be filed is not responsible for having the official ballot prepared for the election, on the filing of a withdrawal request, the authority shall certify the candidate's name in writing as a withdrawn candidate and promptly deliver the certification to the authority responsible for having the official ballot prepared.
Official text of the Texas Election Code as published by the Texas Legislative Council.