Iowa Code Title XV. Judicial Branch and Judicial Procedures [Chs. 595-686] § 622B.5. Oath

Before participating in a proceeding, a sign language interpreter shall take an oath that the sign language interpreter will make a true interpretation in an understandable manner to the person for whom the sign language interpreter is appointed and that the sign language interpreter will interpret or translate the statements of the deaf or hard-of-hearing person to the best of the sign language interpreter's skills and judgment.