N.J. Stat. § 1:2-6
If any bill shall pass both Houses of the Legislature, and be presented to the Governor pursuant to Article V, Section I, paragraph 14, of the Constitution of this State, and the same shall not be returned to the house in which it originated within the time limited by the Constitution, whereby the same has become a law, in like manner as if the Governor had signed the same, the Governor shall indorse thereon, and sign, a certificate of the true time the same was presented to him, and deliver the same to the Secretary of State, who shall indorse thereon, and sign, a certificate of the time it was delivered to him, and file and keep the same in his office, to be there safely kept, with the other laws of the same sitting, as directed by section 1:2-5 of this Title.
N.J.S. § 1:2-6