N.J. Stat. § 40A:2-55
A certified copy of any refunding bond ordinance shall be filed with the director before final passage, together with a complete statement in form prescribed by the director and signed by the chief financial officer of the local unit as to the outstanding obligations to be paid, funded or refunded by issuance of the refunding bonds. No refunding bond ordinance or any resolution performing, determining or authorizing matters or acts in connection with refunding bonds shall take effect until the consent of the local government board shall have been endorsed upon a certified copy thereof as adopted.
Any certification or endorsement of consent made by the local government board or by a majority of the members thereof or by the secretary thereof pursuant to its direction as to any issue of refunding bonds shall, after the issuance of such refunding bonds in reliance thereon, be conclusive as to its validity or regularity and shall not be contested in any action or proceeding relating to such refunding bonds instituted after the issuance of such bonds.
N.J.S. § 40A:2-55