1. 1. No person shall represent himself as an interpreter or engage in the practice of interpreting as defined in section 209.285 in the state of Missouri unless he is licensed as required by the provisions of sections 209.319 to 209.339.
2. 2. A person registered, certified or licensed by this state, another state or any recognized national certification agent, acceptable to the committee that allows that person to practice any other occupation or profession in this state, is not considered to be interpreting if he is in performance of the occupation or profession for which he is registered, certified or licensed. The professions referred to in this subsection include, but are not limited to, physicians, psychologists, nurses, certified public accountants, architects and attorneys.
3. 3. A licensed interpreter shall limit his practice to demonstrated areas of competence as documented by relevant professional education, training, experience and certification. An interpreter not trained in an area shall not practice in that area without obtaining additional relevant professional education, training and experience through an acceptable program as defined by rule by the Missouri commission for the deaf.
4. 4. A person is not considered to be interpreting pursuant to the provisions of this section if, in a casual setting and as defined by rule, a person is acting as an interpreter gratuitously or is engaged in interpreting incidental to traveling.
5. 5. A person is not considered to be interpreting pursuant to the provisions of this section if a person is engaged as a telecommunications operator providing deaf relay service or operator services for the deaf.

(L. 1994 S.B. 568 § 10)