N.J. Stat. Ann. § 45:8B-66

16. Any communication between a licensed professional art therapist or licensed associate art therapist and the person receiving the art therapy, while performing art therapy, shall be confidential and its secrecy preserved. This privilege shall not be subject to waiver, except when disclosure is required by State law or when the licensed professional art therapist or licensed associate art therapist is a party defendant to a civil, criminal or disciplinary action arising from that art therapy, in which case the waiver of the privilege accorded by this section shall be limited to that action.