N.J. Stat. § 52:17B-20
The Division of Motor Vehicles shall be headed by a director, who shall be a person qualified by training and experience to direct the work of such division. The director of such division shall be appointed by the Governor, with the advice and consent of the Senate, and shall serve during the term of office of the Governor appointing him and until the director's successor is appointed and has qualified; provided, however, that the person in office as Commissioner of Motor Vehicles on the thirty-first day of December, one thousand nine hundred and forty-eight, shall hold the office of director of the Division of Motor Vehicles established hereunder for the unexpired period of the term for which he was appointed as Commissioner of Motor Vehicles, and until his successor is appointed and qualifies. The director of the Division of Motor Vehicles shall receive such salary as shall be provided by law and shall devote his entire time and attention to the duties of his office. He may be removed from office by the Governor, for cause, upon notice and opportunity to be heard.
N.J.S. § 52:17B-20