Texas Election Code - ELEC § 127.152. Test of Tabulating Equipment Required

(a) Each unit of automatic tabulating equipment shall be tested, using all applicable ballot formats, in accordance with the testing procedures prescribed by Subchapter D  1 to the extent those procedures can be made applicable.

(b) The general custodian of election records shall conduct the first test.  The presiding election judge shall conduct the second and third tests at the polling place.  If the second and third tests are not conducted in accordance with this subsection, the automatic tabulating equipment shall be used to count the ballots at a central location in accordance with Subchapter A  2 unless the secretary of state determines that a particular test at the polling place is not feasible for the automatic tabulating equipment.

(c) The general custodian of election records shall preserve the test materials for at least one year after election day or for at least 22 months after election day for an election involving a federal office.