This is a Request for Information (RFI) for planning purposes only to gauge industry capabilities for providing Systems Engineering and Technical Assistance (SETA) support to modernize and integrate the Army's Public Safety Communications (PSC) ecosystem. The required services are technical and architectural, focusing on engineering, cybersecurity, and test validation for systems like NG-911, land mobile radio, and emergency warning networks. Responses are due by 31 March 2026 at 4:00 PM DST. No budget or specific performance location is mentioned. Interested parties must demonstrate full capabilities in all requested areas, including corporate membership in specific public safety associations.