BID - Air Filters & HEPA Filter Testing 2012

The document appears to be a bid proposal for the County of Du Page in Illinois. The document is labeled as "REVISED 03/03/11" and is for bid number 12-091. The document consists of 55 pages, with the first page containing the printed name, title, and date. Pages 50 to 53 contain information related to the bid, while page 54 requests the submission of a completed W-9 form with the bid proposal. Page 55 states that late bids cannot be accepted. The document also includes a section for listing references, where the bidder must provide four references with firm name, address, telephone number, and contact person. The document ends with a bid label that needs to be affixed to the outermost envelope of the proposal for proper delivery. The opening date for the bid is stated as 04/02/12 at 1:30 PM, and the description of the bid is for air filters and testing of HEPA filters.