to be filed same manner in the Accounting Department, the original copy to be forwarded to AEC Audit Group attached to the formal purchase order and voucher. (3) Payment and Billing a. Payment of Petty Cash purchases shall be made by the Purchas Department from an established Petty Cash Fund and/or company check at the option of the Chief Accountant. b. Overall weekly accumulated Petty Cash expenditures shall be covered by a Petty Cash Voucher on a weekly basis. The voucher shall indicate the de- scription of item and/or service, name of seller and total cost of each individual petty cash expenditure . (b) PURCHASE LEVEL $10 TO $100 -~- PURCHASE LEVEL CLASS B (1) Scope and Limitations a. b. No competitive bids required. Inguiries for this level of purchase shall be se- ured either on telephone invitation (with telephone record sheet maintained) or by formal request for quotation. ¢. -ad. Seller shall furnish two signed copies of his bid quotation which shall include the following: item nomenclature, complete description, quantity, size, unit cost of material, extended unit cost, and total cost of complete sales quotation. The seller shail also include f.o.b. point of delivery, sales terms, taxes, (wherever applicable), and proposed delivery date. Notification of award shall be made to the selected supplier via advance telephone commmnication and/or mailing of formal purchase order. (c) PURCHASE LEVEL $100 TO $50,000 -- PURCHASE LEVEL CLASS C (1) 13-40 Scope and Limitations a. Competitive bids shall be required from three or more representative and rermitable suppliers. bd. No competitive bids shall be required when purchase is made on governmental TS contract price schedule.