Competitive sealed bidding may be used when the City desires to award contracts for goods or services based solely on price as set forth in the solicitation. This tab discusses many of the steps you are likely to take while bidding as a subcontractor on ADOT projects.Submitting your bid can be done either physically at the office noted in the bid advertisement or online at the BidExpress website. Publication of the City of Phoenix Standard Specifications and Details for Public Works Construction (Specifications). Instructions to Bidders. Section I. Solicitation Response Checklist. Introduction. "Bid" means a response to an invitation for bids and includes an offer to contract with District. This is to notify you that (insert company's name) intends to submit a bid response on the above noted RFP for the Phoenix Program.