ORS 40.325: Rule 604. Interpreters.

Except as provided in ORS 45.275 (7), an interpreter is subject to the provisions of the Oregon Evidence Code relating to qualification as an expert and the administration of an oath or affirmation that the interpreter will make a true and impartial interpretation of the proceedings in an understandable manner using the interpreter’s best skills and judgment in accordance with the standards and ethics of the interpreter profession.