New Jersey Statutes Title 40A. Municipalities and Counties 40A § 9-1.7

Any local unit adopting the provisions of section 1 of this act  1 shall provide in the adopting ordinance or resolution, as the case may be, that whenever the governing body, or the hiring authority of the local unit, shall determine that there are certain specific positions and employments, requiring special talents or skills which are necessary for the operations of the local unit and which are not likely to be found among the residents of the local unit, such positions or employments so determined shall be filled without reference to residency. Any such provision shall set forth the formal criteria pursuant to which such positions and employments shall be so determined.