Bid Timelines: The number of days for each step listed on the flowchart timeline document (available on the link below) may vary depending on the proceedings of each individual solicitation. The Virginia Public Procurement Act (VPPA) and the County's Purchasing Ordinance state a minimum of 10 days from the date of publishing to the submittal date. End-User Departments, Management, and Procurement Staff must use discretion and consider what is fair to the bidding/proposing contractors/offerors.