Criteria for evaluating proposals with additive alternatives should be included in the bid package. 4.3. 12 Cost Consideration.Pima County's Open and Closed Solicitations are posted below. Please register or login to see details of all open 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. Pima County Community College District ("College") is seeking proposals from qualified firms to provide Chartered Ground Transportation Services.