N.J. Stat. § 18A:66-8.1
If a teacher has been or hereafter shall be discontinued from teaching service through voluntary service in the Peace Corps of the United States, his membership in the Teachers' Pension and Annuity Fund shall continue if he has not withdrawn his accumulated deductions, and if he returns to teaching service within a period of 5 years from the date of his discontinuance from service. Any previously held account in the Teachers' Pension and Annuity Fund which has expired as a result of such a discontinuance shall be reconstructed, and credit for retirement purposes shall be allowed to such member covering the period of his service in the Peace Corps. The method of computation, the terms of the purchase and the credit granted shall be identical to those stipulated for the purchase of previous membership service by members of the fund as provided in N.J.S. 18A:66-9.
N.J.S. § 18A:66-8.1