Section 23584 - Contributions by members(a) Each member of the fund who is making contributions hereunder on December 31, 1974, and each employee who becomes a member on or after January 1, 1975, shall contribute to the fund 5% of his salary or wages.(b) Any member who retires subsequent to January 1, 1975 but prior to January 1, 1980 may elect to increase his average monthly earnings by contributing 5% of earnings in excess of $650 per month for up to 36 months of service rendered prior to the effective date of this act.(c) The city shall cause to be deducted the required member contributions from each payroll and shall promptly send the amounts deducted to the fund.(d) Payment of the amount of contribution herein mentioned shall be discontinued at the time the member retires, terminates service, attains age 65 with 20 or more years of credited service, dies or becomes totally and permanently disabled, except that any member who terminates employment with the city after attaining age 40 and completing eight or more years of credited service may, in order to become eligible for vested benefits under the provisions of section 7(d) of this act, elect to make monthly payments to the fund continuing until age 50 and in amounts equal to 5% of his monthly salary at the time of termination of service.(e) Each person who becomes an employee of the city after having been employed by the city in the bureau of fire or the bureau of police, and who is not entitled to retirement benefits for such service under another retirement system and who desires to have such service credited in the fund, shall be required to pay to the find an amount equal to 5% of the total salary or wages received by him for each month of service for which he wishes to receive credit together with interest at the rate earned by the fund during the period of such employment. Such amount shall be deducted from the monthly salary or wages of the member over a period of two years or in such manner and period as the board may determine. Upon full payment of the amount due the member shall receive credit for said period of service. If any member shall be injured while in the actual performance of duty before he shall have made full contribution for past service, so long as the disability continues, be shall be eligible for pension under this act, but any amount which he shall not yet have paid to the fund as a contribution for past services under this section at the date of his injury shall be paid, if the board, in its discretion, shall so determine, in such monthly amounts as the board may determine, which amounts shall be deducted from his or her pension as and when monthly payments thereof shall be made.(f) Any member may purchase full credit toward his pension for each year of service with an agency or authority prior to the time such agency or authority joined the fund upon his producing proof satisfactory to the board of the number of years of such service and upon his making back payments as if he had been a member of the fund at the time of such service. The amount due may be paid in a lump sum or by installments, as may be agreed upon by the member and the board. If the employee is retired under this act before the payments have been completed, his pension shall be reduced by an amount equivalent to the unpaid balance of the amount due.(g) If a member terminates service before he is eligible to receive a pension and is not eligible or does not elect to make further contributions under subsection (d), his accumulated contributions shall be refunded in full.(h) Any former employee who has received a refund of his accumulated contributions and who shall reenter the service of the city, shall be eligible to receive credit for all previously credited service by restoring to the fund the total accumulated contributions withdrawn.(i) Any pensioner who had less than 20 years credited service or who had elected to receive an early reduced pension and who returns to service shall start contributing at 5% of his salary or wages and shall be entitled to have his subsequent retirement pension be determined on the basis of this total service history by restoring to the fund the total of the amount received in pension payments. 1975, Aug. 1, P.L. 169, No. 87, § 4, effective Jan. 1, 1975.