Nothing in this act shall be construed as authorizing subcontracting which is not otherwise authorized by law. Nothing in this act shall be construed as restricting or limiting any right established or provided for employees by section 7 of P.L. 1968, c.303 (C.34:13A-5.3); the purpose of this act is to provide rights in addition to those provided in that section.
N.J.S. § 34:13A-49