N.J. Const. art. V, § 1, ¶ 5

The term of office of the Governor and of the Lieutenant Governor shall be four years, beginning at noon of the third Tuesday in January next following their election, and ending at noon of the third Tuesday in January four years thereafter. No person who has been elected Governor for two successive terms, including an unexpired term, shall again be eligible for that office until the third Tuesday in January of the fourth year following the expiration of the second successive term. Article V, Section I, paragraph 5 amended effective January 17, 2006.