N.J. Stat. § 19:23-35
In counties not having a superintendent of elections, where the county board of elections does not have the equipment or facilities to address and mail sample ballot envelopes, such district board shall also post three sample ballots in the polling place in its district.
The county board of elections in all counties of the first class, and in other counties where the county board of elections shall elect to operate under the provisions of subsection b. of section 19:23-30 of this Title, shall, not later than the start of the early voting period for the primary election, deliver to the members of the district board three sample ballots for their respective election district. The board shall post the sample ballots in the polling place in its district.
N.J.S. § 19:23-35