Proposers must complete and return those documents identified in Section 4 Submission of Proposals of the Instructions to Proposers document. Pima Community College is requesting proposals from firm(s) for the purpose of establishing a Service.Pima County Community College District is requesting proposals from qualified vendors to provide Fully Insured. The process usually requires 90 days to complete (from publication of solicitation to final Supplier Contract or Purchase order). ➢ Requests for Proposals (RFP).