(a) Write-in candidates are not permitted for county chair or precinct chair unless a county executive committee authorizes write-in candidates.
(b) If the county executive committee authorizes write-in candidates:
(1) a write-in vote for the office of county chair or precinct chair may not be counted unless the name written in appears on the list of write-in candidates;
(2) to be entitled to a place on the list of write-in candidates, a candidate must make a declaration of write-in candidacy;
(3) a declaration of write-in candidacy must be filed with the authority with whom an application for a place on the ballot is required to be filed for the office;
(4) a declaration of write-in candidacy must be filed not later than 6 p.m. of the fifth day after the date of the filing deadline for the general primary election;
(5) with the appropriate modifications and to the extent practicable, Subchapter B, Chapter 146, applies to write-in voting for the office of county chair or precinct chair; and
(6) the secretary of state shall prescribe any procedures necessary to implement this subsection.