N.J. Stat. § 40:27-1
The board of chosen freeholders may create a county planning board of not less than five nor more than nine members. The members of such planning board shall be the director of the board of chosen freeholders, one member of the board of chosen freeholders, to be appointed by the director, the county engineer, if the board exceed six in number, and other citizens who may not hold any other county office and who shall be appointed by such director of the board of chosen freeholders with the approval of that body. One of the remaining members shall be appointed for two years, two shall be appointed for three years, and all additional remaining members shall be appointed for four years, and thereafter their successors shall be appointed for the term of three years from and after the expiration of the terms of their predecessors in office. All members of the county planning board shall serve as such without compensation, but may be paid expenses incurred in the performance of duties.
N.J.S. § 40:27-1