How do I submit a bid or proposal? All formal bids and proposals shall be submitted as specified in the solicitation document.For an accurate formal proposal, please fill in the following information: California State License ❘ B-765273. General Liability Insurance. Here, you'll find details about contracting opportunities, vendor qualifications, proposals and how to bid on projects. P4P will review the RFP (request for proposal) and all documents pertaining to the scope of work. To post a Proposal or Bid Notice, sign in or register your organization and follow the step-by-step submission process. PlanHub allows you to see the current projects available for bid throughout Arizona.