The Department of Defense, specifically the Department of the Navy's NSWC Crane, is issuing a Request for Information (RFI) to gather insights on High Energy Heavy Ion Single Event Effects (HE HISEE) testing capabilities. The objective is to assess potential solutions for a dedicated testing facility that will support critical defense systems, including strategic nuclear and missile defense technologies, with operations expected to commence in the early 2030s. This initiative emphasizes the importance of robust microelectronics testing to ensure system reliability against environmental threats, particularly Galactic Cosmic Rays and solar heavy ions. Interested parties are encouraged to submit their technical approaches, operational models, and life cycle cost estimates by September 19, 2025, to Mr. Matthew Bedel at matthew.j.bedel.civ@us.navy.mil.