6939.14. Surplus revenues in the operation fund may be deposited either in the interest fund or any reserve fund created to secure any bonds or in the sinking fund, but money allocated to the interest fund or the sinking fund shall not be transferred to any other fund or used for any other purpose than the payment of the bonds and the interest thereon so long as the bonds are outstanding.(Added by Stats. 1961, Ch. 1457.)
California Legal Code