New Jersey Statutes Title 52. State Government, Departments and Officers 52 § 14A-4

In the event that the Governor, for any reason, is not able to exercise and discharge the functions, powers and duties of his office, or is unavailable, the functions, powers and duties of such office shall devolve in the manner provided in Article V, Section 1 of the Constitution of the State of New Jersey. In the event that the persons upon whom such functions, powers and duties devolve, under such provisions of the Constitution, are not able to exercise the same or are unavailable, then such functions, powers and duties shall devolve upon the Attorney General, for the time being; and in the event that he is unable to exercise the powers and duties of such office or is unavailable, then upon the State Highway Commissioner, for the time being; and in the event that he is unable to exercise the powers and duties of such office or is unavailable, then upon such person as the Legislature by majority vote of the total number of available legislators and emergency interim successors, exercising the powers and discharging the duties of legislators not available, in both Houses may designate. Any such official or other person upon whom the powers and duties of the Governor have developed shall exercise the same until a new Governor is elected and qualified. No deputy or emergency interim successor to the aforementioned offices, including such successor to any Senator or Assemblyman may serve as Governor.