All purchases made and contracts executed by the General Services Director shall be pursuant to an electronic requisition submitted from the office, department, or agency whose appropriation will be charged, and no contract or order shall be issued to any vendor unless there is to the credit of that office, department, or agency a sufficient unencumbered appropriation balance to pay for the supplies, materials, equipment, or contractual services for which the contract or order is to be issued.
(Special Acts, Ch. 57-1754, § 41) ('58 Code, § 2.24.6) (Am. Ord. 84-61, passed 6-5-84; Am. Ord. 96-59, passed 4-9-96)