N.J. Stat. § 52:14-6.15
No employee of a New Jersey Governmental unit shall participate, whether as a sending agency or receiving agency, in a program of government employee interchange pursuant to this act until (1) the chief executive officer of said New Jersey Governmental unit shall have certified to the President of the Civil Service Commission that the participation of said employee in such a program will assist the said New Jersey Governmental unit in resolving problems within the field of responsibility of said New Jersey Governmental unit, and (2) the chief executive officers of the sending agency and the receiving agency and the participating employee of a New Jersey Governmental unit shall have executed, and filed with the President of the Civil Service Commission, an agreement adopting the terms, conditions and requirements stated in section 5 of this act, and any other terms and conditions not inconsistent therewith.
N.J.S. § 52:14-6.15