Each demand approved by the receiving department or office shall be presented to the City Manager, who shall satisfy himself whether:
(a) The claim is legally due and owing by the City;
(b) There are budgeted or otherwise appropriated funds available to pay said claim;
(c) The claim conforms to a valid requisition or order;
(d) The prices and computations shown on the claim are verified; and
(e) The claim contains the approval of other departments and officials as required.
(3-12/90 § 3.16.050)