(a) Before serving as an interpreter, the person selected as interpreter must take the following oath administered by an election officer:
"I swear (or affirm) that, to the best of my ability, I will correctly interpret and translate each question, answer, or statement addressed either to the voter by any election officer or to an election officer by the voter."
(b) A person who will be providing ballot assistance under Section 61.034 must also take the oath required by Subchapter B, Chapter 64, and meet all other requirements of that subchapter.