All expenditures of City funds shall be made by proper warrant drawn against an appropriate fund. Any such warrant shall show upon its face the appropriation against which such expenditure is made and the fund against the warrant is drawn. All such warrants shall be signed as Council may direct.
Notwithstanding the foregoing provision, the Finance Director may establish a petty cash fund or funds as directed by Council. The fund may be established, as necessary, by the Finance Director who shall keep an account of all such expenditures in accordance with established accounting practice.