There is created in the state treasury the “osteopathic medical student loan for service fund”. All money appropriated for loans to osteopathic medical students under the Osteopathic Medical Student Loan for Service Act shall be credited to the fund. All payments of principal and interest on loans made pursuant to that act received by the department shall be deposited with the state treasurer to the credit of the fund or shall be deposited with the department’s administrative agent. All payments of funds for loans shall be made upon vouchers signed by designated representatives of the department.