1. Before undertaking his or her duties, the interpreter shall swear or affirm that he or she will make a true interpretation in an understandable manner to the person for whom he or she has been appointed, and that he or she will repeat the statements of the person with a communications disability in the English language to the best of his or her ability.
2. While in the proper performance of his or her duties, an interpreter acts in the place of the person with a communications disability and to that extent has all of the rights and privileges of that person for purposes of the proceeding, including access to all relevant material.