N.J. Stat. Ann. § 43:7-19.1

The State Treasurer shall designate a medical board after consultation with the Director of the Division of Pensions, subject to veto by the commission for valid reason. It shall be composed of three physicians who are not eligible to participate in the pension fund. The medical board shall pass upon all medical examinations required under the provisions of the act, shall investigate all essential statements and certificates by or on behalf of a member in connection with an application for disability retirement, and shall report in writing to the pension fund its conclusions and recommendations upon all matters referred to it.