No order or check upon the City treasury shall be drawn unless claims for payment have been approved by the Director of Finance, or acting Director of Finance. Expenditures will not be approved for payment unless authorized by budget appropriations or duly approved budget transfers. (Ord. 2909, 1997: Ord. 2709 § 4, 1990: 2510.1 -- Ord. 174 § 2, 1915).