1-11-4: REQUISITIONS AND PURCHASE ORDERS:
   A.   Requisitions: All departments shall submit requests for supplies and equipment to the purchasing officer by standard requisition forms. (1988 Code § 3-4-4)
   B.   Purchase Orders:
      1.   All purchases of supplies and equipment shall be made only by written purchase order, except for those purchases of less than twenty five dollars ($25.00) which may be made from petty cash.
      2.   Only the purchasing officer or a designated representative may sign purchase orders and approve a purchase or reimbursement from petty cash upon presentation of proper receipts as provided in section 1-11-7 of this chapter. (1988 Code § 3-4-5)