Fermi National Accelerator Laboratory (FNAL) is building a next generation proton accelerator called the Proton Improve Plan II (PIP-II). FNAL is soliciting proposals for Reclosable Pressure Safety Re... Fermi National Accelerator Laboratory (FNAL) is building a next generation proton accelerator called the Proton Improve Plan II (PIP-II). FNAL is soliciting proposals for Reclosable Pressure Safety Relief Valves to protect from overpressure. Proposals can be submitted directly to the Primary Contact listed on this notice and within the RFP Document. Pricing must be submitted using the Request for Proposal Pricing Sheet, Exhibit G, which is located at the end of the RFP document.