New Jersey Statutes Title 19. Elections 19 § 23-34

Each of such district boards, 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, and the commissioner of registration in all other counties, shall prepare and deposit in the post office, on or before twelve o'clock noon on Wednesday preceding the start of the early voting period for the primary , the stamped envelopes containing a copy of the sample primary ballot of each political party addressed to each voter whose name appears in the primary election registry book.