Prepare your documentation according to project type requirements, convert all documents to PDF, and complete the online application form. Pima County's Open and Closed Solicitations are posted below.Please register or login to see details of all open opportunities. Please use the BidNet link below to see solicitation information. Call , option 2 for help with BidNet registration. Construction bids are quite lengthy and should contain as much information as possible regarding the project and what will be required of the contractor. "Bidder" means a person who desires to make a proposal on procurement. (See "Qualified Bidder" and "Responsive Bidder"). 2.