New Jersey Statutes Title 19. Elections 19 § 18-7

All registry books and statements of results of elections required to be filed with the Secretary of State, the superintendent of elections, the county clerks of the various counties and the municipal clerks of the various municipalities shall be preserved by such officials for a period of five years after the holding of any election at which they were used, and all ballots, used or unused, for any election shall be preserved by such officials for a period of two years after the holding of any election, and thereafter shall be sold by such officials as waste paper, the proceeds to be paid into the State, county and municipal treasuries, respectively. The several county and municipal clerks may also sell all registry books which have been on file in their office for a period of five years, the proceeds to be paid into the county and municipal treasury, respectively.