Please note that this is not an order to proceed. A Purchase Order, which constitutes your notice to proceed, will be issued to your firm.All terms used in this agreement are defined in the Fairfax County Purchasing Resolution, Article 1, Section. This sales contract ("Contract") is offered on. ("Date of Offer") between. Acceptance Agreement. Contract Number: 4400007090. Bids will not be accepted after the date and time specified in the notice and any received after such date and time shall not be considered for contract award.