N.J. Stat. § 19:48-4
Voting machines, heretofore or hereafter installed in any manner provided by law, in any county not having a superintendent of elections, shall be placed, and remain, in the custody of the county board of elections, and voting machines, heretofore or hereafter installed in any manner provided by law, in any county having a superintendent of elections, shall be placed, and remain, in the custody of the superintendent of elections; except that voting machines, heretofore or hereafter installed in any municipality by the governing body thereof, in any manner provided by law, shall be placed, and remain, in the custody of the municipal clerk unless taken over by the county according to law.
The county board of elections or the superintendent of elections or the municipal clerk, as the case may be, shall preserve and keep in repair all voting machines placed in its or his custody pursuant to the provisions of this section.
N.J.S. § 19:48-4