N.J. Admin. Code § 19:25-16.31
Any candidate, campaign treasurer, or deputy campaign treasurer of the candidate may borrow funds from any national or State bank, provided that no person, candidate committee, joint candidates committee, political committee, continuing political committee, political party committee, or legislative leadership committee, other than the candidate, may in any way endorse or guarantee such loan in the aggregate in excess of the $ 4,900 contribution limit. In the case of a participating candidate guaranteeing a loan to his or her own campaign, the amount so borrowed shall not at any one time in the aggregate exceed $ 50,000 and must be repaid in full by such candidate or the campaign treasurer, or deputy campaign treasurer, from monies accepted or allocated pursuant to N.J.S.A. 19:44A-29not later than 20 days prior to the primary election. This limit does not apply to a candidate that does not participate in the public financing program. Repayment shall be evidenced on a report filed no later than the 11-Day Preelection reporting date with attached documentation. In the event of the failure of the borrower to repay timely the full amount of the loan or to certify properly such repayment to the Commission, all payment of public funds to such candidate shall promptly cease and the Commission shall take action as directed by the Act to prohibit the expenditure by the candidate of monies received from the fund and any other monies received by the candidate in aid of the candidate's campaign in such primary election.
N.J. Admin. Code § 19:25-16.31