a. Persons heretofore permanently or provisionally employed by such boards of education who became members of the pension fund at any time prior to June 26, 1962, shall be permitted to purchase credit covering any period of temporary, permanent or provisional service preceding said permanent or provisional employment, by making application therefor, and in such case, the payments to be made by the employee and board of education for such previous service shall be based on appropriate tables of factors submitted by the actuary as being applicable to the salary and contribution rate in effect at the time of making the application to purchase such credit. Persons becoming members thereafter shall be permitted to purchase credit for any temporary service which immediately precedes their permanent or provisional appointment by making application therefor at the time of becoming members and paying into the fund, the amount determined to be due for such service on the basis of appropriate tables of factors submitted by the actuary as being applicable to the salary and contribution rate in effect based on the salary at that time. Any person coming into the employ of any such board of education as a provisional employee after June 26, 1962, shall become a member of the pension fund as a condition of employment.
A member shall have the right to purchase credit for any period of service in other municipalities or governmental units in this State or in any other State of the United States of America, rendered by the member prior to becoming a member up to the nearest number of years and months but not exceeding 10 years, by making application therefor at the time of becoming a member or for present members within two years of the effective date of this 1968 amendatory act and in such case the payments to be made by the employee and the employing board of education for such service credits shall be on the basis of appropriate tables of factors submitted by the actuary as being applicable to the salary and contribution rate in effect based on the salary at the time of making application.