N.J. Stat. Ann. § 52:18A-113.3

2. Upon approval and filing, the State Treasurer or the applicable governing body of a public institution of education shall reduce an employee's salary pursuant to the agreement and shall pay an amount equal to the amount agreed upon for the salary reduction as an employer contribution to the issuer of the employee's annuity. Participation in a reduction of salary pursuant to this act shall not cause the employee to lose any benefits under a State-administered retirement system to which the employee would otherwise be entitled had the employee not agreed to a reduction in salary for the purpose of purchasing a tax-deferred annuity. Employee contributions and any survivor's benefit shall be paid on the basis of the employee's salary without regard to the reduction authorized by this act.