The Department of Defense, specifically the Department of the Air Force, is soliciting proposals for the Air Route Surveillance Radar Version 4 Replacement program in Hawaii (ARSR4R-HI). This opportunity involves the development of a Problem Statement for Phase 1 of the program, which includes classified information that requires strict safeguarding measures to protect sensitive data marked as No Foreign Dissemination (NOFORN). The ARSR4R-HI program is critical for enhancing air traffic surveillance capabilities, ensuring the safety and efficiency of airspace management. Interested contractors must submit a series of documents, including a Non-Disclosure Agreement and a NOFORN safeguarding plan, by September 18, 2024, to receive the solicitation documents, with the initial release scheduled for August 5, 2024. For further inquiries, contact Nathan Childs at nathan.childs.3@us.af.mil or Douglas Goon at douglas.goon@us.af.mil.