Ballot box no. 4 must contain:
(1) the original of the ballot register;
(2) the register of spoiled ballots;
(3) any spoiled ballots;
(4) any ballot to be voted by mail returned at the polling place;
(5) any defectively printed ballots;
(6) any envelope containing cancellation requests and canceled ballots; and
(7) any other unused ballots.
Official text of the Texas Election Code as published by the Texas Legislative Council.