N.J. Stat. § 40:20-35
Nothing in sections 40:20-20 to 40:20-34 of this title contained shall be construed to require a reorganization of the board of chosen freeholders of any county in accordance with the provisions of such sections when such county has heretofore adopted the provisions of the act entitled "An act to reduce the number of members of the boards of chosen freeholders in counties of this state, and to fix the salaries and provide for the election of the members of said boards," approved March twenty-sixth, one thousand nine hundred and two, either as originally passed or as amended, and which has effected a reorganization of its board of chosen freeholders in pursuance thereof. In such counties the members of such reorganized boards of freeholders shall continue in office until the expiration of the terms for which they were elected, and such boards so reorganized shall be subject to and be governed by the provisions of said sections 40:20-20 to 40:20-34.
In all counties in which there has heretofore been held an election for the acceptance or rejection of the act entitled "An act to reduce the number of members of the boards of chosen freeholders in counties of this state, and to fix the salaries and provide for the election of the members of said boards," approved March twenty-sixth, one thousand nine hundred and two, either as originally passed or as amended, at which election a majority of the votes cast for or against the law reducing the number of freeholders were in favor of the adoption of that act, the board of chosen freeholders shall consist of the number of members, according to population, as provided for herein, and where no election for members of the board of chosen freeholders has been held in such county, subsequent to the adoption of that act, the board of freeholders of such county shall be elected at the next general election held in such county, in the manner herein set forth, and such boards of chosen freeholders shall be subject to and be governed by the provisions of said sections 40:20-20 to 40:20-34.
The boards of chosen freeholders in counties which have heretofore adopted the provisions of the act entitled "An act to reorganize the boards of chosen freeholders of the several counties of this state, reducing the membership thereof, fixing the salaries and providing for the election and terms of office of the members, and also for the appointment and terms of office of officers appointed by such boards (Revision 1912)," approved April first, one thousand nine hundred and twelve, either as originally enacted or as amended, shall be continued under the provisions of said sections 40:20-20 to 40:20-34 and nothing in such sections contained shall require the submission of the question of the adoption of such sections to the voters of such counties.
N.J.S. § 40:20-35