Instructions and information to bidders concerning the bid submission requirements, including the time and date set for receipt of the bids and the. Learn how to make bids using the software Bid Express.Follow bid openings, summaries and results. Submit your bid before the time specified in Section V–Proposal–Description of Work, at which time bids will be publicly opened and read via Webex. The County will only accept formal bids and proposals through the PORT system. To register, please visit the registration page. The purpose of this Invitation for Bid Document is for Worcester County ("County") to contract.