Tex. Natural Resources Code § 23.052: SURVEYS ON WHICH PATENTS ARE TO BE OBTAINED.

The county surveyor shall:

(1) receive and examine all field notes of surveys made in the county on which patents are to be obtained;

(2) certify to the same according to law; and

(3) record the field notes in a book to be kept by him for that purpose.

Acts 1977, 65th Leg., p. 2368, ch. 871, art. I, Sec. 1, eff. Sept. 1, 1977.