Section 1. The county commissioners of any county, the county jail of which was incorporated into the State prison system, shall appropriate such amounts as are certified by the State Employes' Retirement Board as necessary to establish reserves for the benefit of any former member of the county employes' retirement system, whose employment with the county was terminated because of the incorporation of the county jail into the State prison system and who became a member of the State Employes' Retirement System and who elected to receive credit in the State Employes' Retirement System for service as a member of the county employes' retirement system. Such appropriations shall be made at the annual budget session next succeeding the year in which certification is received from the State Employes' Retirement System and payment to the State Employes' Retirement Fund shall be made within ninety days of the adoption of the budget.