N.J. Stat. § 19:23-31
The official primary sample ballot shall be, as nearly as possible, a facsimile of the official primary ballot to be voted at the primary election and shall be printed on paper different in color from the official primary ballot, so that the same may be readily distinguished from the official primary ballot. It shall state clearly the days, hours, and places at which early voting shall be available in the county. The official primary sample ballot shall have printed at the top in large type the words: "This official primary sample ballot is an exact copy of the official primary ballot to be used on primary election day. This ballot cannot be voted." The official primary sample ballot shall also have printed thereon, following the words which indicate the election district, the following words: "The polling place for this election district is
(Stating the location of said polling place)."
N.J.S. § 19:23-31