Pima County's Open and Closed Solicitations are posted below. Please register or login to see details of all open opportunities.The process usually requires 90 days to complete (from publication of solicitation to final Supplier Contract or Purchase order). ➢ Requests for Proposals (RFP). The Job Order Price shall set forth the fixed price, lump sum amount for which the Contractor is paid to complete the Detailed Scope of Work. Browse Bid Opportunities. Construction bids are quite lengthy and should contain as much information as possible regarding the project and what will be required of the contractor.