Tex. Election Code § 129.021: ACCEPTANCE TESTING.

(a) In this section, "hash validation" means a mathematical function that, when applied to a file, creates a unique string of letters and numbers that may be used to confirm that a voting system and its source code have not been altered.

(b) Immediately after receiving a voting system from a vendor, the general custodian of election records shall:

(1) verify that the system delivered is certified by the secretary of state;

(2) perform a hardware diagnostic test on the system as provided by Section 129.022(b);

(3) perform a public test of logic and accuracy on the system as provided by Section 129.023;

(4) perform a hash validation on each ballot marking device, each unit of automatic tabulating equipment, and each tabulation computer to verify that the source code of the equipment has not been altered; and

(5) perform any additional test that the secretary of state may prescribe.

Amended by:

Acts 2009, 81st Leg., R.S., Ch. 682 (H.B. 2524), Sec. 2, eff. September 1, 2009.

Acts 2025, 89th Leg., R.S., Ch. 1015 (S.B. 2166), Sec. 6, eff. September 1, 2025.