... shall receive credit in the retirement system for the service.' N.J.S.A. 18A:66-14.2(a). The TPAF statute provides for life insurance—referred ... conversion within a limited window of opportunity. Appellant suggests that N.J.S.A. 18A:66-14.2 provides support for his position that service leave is ... receive credit in the retirement system for their service . However, N.J.S.A. 18A:66-14.2 is concerned with service time for pension benefits. It ...