N.J. Stat. Ann. § 16:12-27

Notwithstanding the provisions of any other law of this State in any way limiting the right of said trustees, parishes, congregations, societies, chapels or missions as fiduciaries or otherwise, to invest funds held by them, it shall be lawful for said trustees, parishes, congregations, societies, chapels or missions as fiduciaries or otherwise, to invest any or all of their funds in shares of or interests in such common trust fund; provided, that in case of funds held as fiduciary, such investment is not prohibited by the provisions of the will, deed, or other instrument creating such fiduciary relationship.