The Purchasing Officer shall not issue any purchase order or check request, or award any contract for the acquisition of supplies, materials, equipment or services, unless there exists an unencumbered appropriation in the funds as approved by City Council resolution adopting procedures for administration of the annual budget. The appropriate account and funds shall be encumbered immediately after the issuance of the purchase order or check request or award of contract.
(Ord. 1582, §I (part), 1992)