This document is an invitation to bid (ITB) for a procurement project by the County of DuPage in Illinois. The document provides instructions and guidelines for bidders interested in submitting their bids. It states that the bidder must have satisfactory authority approved by the Procurement Manager and if the bidder is a sole proprietor, the owner must execute the bid. Partnerships or sole proprietors operating under an assumed name must be registered with the Illinois County. Bids must be delivered to the Procurement Services Division before the specified date and time, and late bids will not be considered. The bids must be sealed in envelopes with the bidder's name and address on the upper left corner and a label filled in and pasted on the lower left corner. The document also mentions that the successful bidder will be asked to sign a contract agreement and any proposed terms or alternative paperwork must be submitted as exceptions. The award notification will be sent to the vendor via mail or fax, and the bid status can be viewed on the website www.DemandStar.com. The document also provides information on changes, commencement of work, communications, confidential information, contractor performance, year 2000 compliance, drug-free workplace, endorsements, F.O.B. shipping, and force majeure. According to the force majeure clause, the County of DuPage will not hold the Contractor liable for any extraordinary interruption of events.