(A) Accounts shall be kept by Finance Executive for each appropriation made by the Council, together with a record of each allotment of the appropriation by the City Manager, and every purchase order and contract and every warrant passed for payment shall state specifically against which it is drawn. The Finance Executive’s accounts shall show for each departmental appropriation and allotment made, the amount of obligations incurred against the same, and the balance remaining to the credit thereof.
(B) No contract or purchase order involving the expenditure of tax or bond money shall be issued or entered into, nor shall any such be valid unless the Finance Executive shall first certify thereon that there is in the Treasury to the credit of the Appropriation from which it is to be paid, a balance sufficient to meet the obligation. Notwithstanding the foregoing requirements, stores and service requisitions and emergency purchase orders issued in accordance with the rules promulgated by the City Manager, may be certified not later than twenty four hours after their issuance.
(Prior Code, Art. 1, § 1.5(j))