N.J. Stat. § 19:48-6
The county board of elections or the superintendent of elections or the municipal clerk, as the case may be, having custody of voting machines, shall have the machine or machines and all necessary furniture and appliances at the proper polling place or places before the time fixed for opening the polls, and the counters set at zero (000), the emergency ballot boxes furnished with the appropriate number of emergency ballots, and otherwise in good and proper order for use at such election. For the purpose of placing ballots in the ballot frames of the machines; putting in order, setting, testing, adjusting and delivering the machines, such county board of elections or such superintendent of elections or such municipal clerk, as the case may be, may employ or appoint one or more fully competent persons to be known as custodian or custodians of voting machines, who shall be thoroughly instructed in their duties by such county board of elections or such superintendent of elections or such municipal clerk, as the case may be, and shall be sworn to perform their duties honestly and faithfully. Such custodians shall be employed or appointed and instructed at least thirty days before the election and shall be considered as officers of elections; provided, however, that for the purpose aforesaid in counties having a superintendent of elections, the superintendent of elections may employ or appoint, in addition to one or more custodian or custodians, other fully competent persons and may classify them, assign their duties, and fix their compensation according to the particular duties assigned them, which said persons shall also be employed or appointed, and thoroughly instructed and sworn to perform their duties honestly and faithfully, at least thirty days before the election and shall likewise be considered as officers of election.
Before preparing a voting machine for any election, written notice shall be mailed by such board of elections or such superintendent of elections or such municipal clerk, as the case may be, to the chairman of the county committee of at least two of the principal political parties, stating the time and place where the machines will be prepared, at which time one representative of each such political party shall be afforded an opportunity to see that the machines, including the emergency ballot boxes, are in proper condition for use in the election; such representatives shall be sworn to faithfully perform their duties and shall be regarded as election officials, but shall not interfere with the custodian or custodians or other persons employed or appointed as aforesaid or assume any of his or their duties. When a machine and the affixed emergency ballot box have been so examined by such representatives, the emergency ballot box shall be sealed with a numbered green seal and the voting machine shall be locked against voting and sealed with a numbered seal. Such representatives shall certify, upon a form to be provided by such county board of elections or such superintendent of elections or such municipal clerk, as the case may be, as to the numbers of the machines and emergency ballot boxes, that all of the counters are set at zero (000) and the ballot boxes are furnished with the emergency ballots, and as to the numbers registered on the protective counter, if one is provided, and on the seals. Such certificate shall be filed by them with such county board of elections or such superintendent of elections or such municipal clerk, as the case may be. After a voting machine and an emergency ballot box have been properly prepared for the election and the machine locked against voting and sealed, the keys for the voting machine shall be delivered to such county board of elections or such superintendent of elections or such municipal clerk, as the case may be, together with a written report made by a custodian stating that the machine and the affixed emergency ballot box are in every way properly prepared for the election.
After the voting machines shall be delivered to the polling places, the governing body of the municipality, wherein such polling places are located, shall provide ample police protection against molestation, or tampering or damage to the machines. Every voting machine shall be furnished with a lantern, or an electric light fixture, which shall give sufficient light to enable voters while voting to read the ballots and be suitable for use by the district board in examining the counters. The lantern or electric light fixture shall be prepared in good order by such county board of elections or such superintendent of elections or such municipal clerk, as the case may be, for use before the opening of the polls.
N.J.S. § 19:48-6