New Jersey Statutes Title 40A. Municipalities and Counties 40A § 65-6

a. In the case of an agreement for the provision of services by an officer or employee of a local unit who is required to comply with a State license or certification requirement as a condition of employment, the agreement shall provide for the payment of a salary to the officer or employee and shall designate one of the local units as the primary employer of the officer or employee for the purpose of that person's tenure rights. If the agreement fails to designate one of the local units as the primary employer, then the local unit having the largest population, shall be deemed the primary employer for the purposes of that person's tenure rights.

b. A State department or agency with oversight over specific activities that are the subject of a shared service agreement may promulgate whatever rules and regulations it deems necessary to ensure that the service continues to be provided in accordance with the requirements of that department or agency.