Tex. Civil Practice and Remedies Code § 21.005: OATH.

(a) The interpreter shall take an oath that the interpreter will:

(1) make a true interpretation to the deaf person of all the case proceedings in a language that the deaf person understands; and

(2) repeat the deaf person's answers to questions to counsel, court, or jury in the English language, using the interpreter's best skill and judgment.

(b) An interpreter appointed for a juror shall also take an oath that the interpreter will not:

(1) participate in any manner in the deliberations of the jury;

(2) communicate with any member of the jury regarding the deliberation of the jury except a literal translation of a juror's remarks made during deliberations; or

(3) disclose any of the deliberations with any person following a verdict.

Acts 1985, 69th Leg., ch. 959, Sec. 1, eff. Sept. 1, 1985. Amended by Acts 1987, 70th Leg., ch. 550, Sec. 3, eff. Sept. 1, 1987.