To meet the requirements of the retirement system for the period between October 13, 1965, and the time when sufficient contributions to the system are transmitted by employers, the board of trustees shall have authority to accept on behalf of the system such grants or appropriations as may be made to them or it by the general assembly of Missouri and to repay and return the same to the state treasury when funds of the system sufficient therefor are available, but any funds appropriated by the general assembly shall be repaid within two years after October 13, 1965.

(L. 1965 p. 298 § 12)