§ 36.06  BILLS, CLAIMS OR EXPENDITURES.
   No bills, claims or expenditures of any kind or nature shall be paid and no order drawn on the City Treasurer therefor, unless the bill or claim shall have been passed on and allowed by the City Council, specifying upon which fund and account the order shall be drawn.  All bills, claims, expenditures, orders and transfers from 1 fund to another shall be done only with warrants properly signed, stating the particular fund and account to which the same are chargeable.
(1992 Code, § 36.06)