The Department of Homeland Security, specifically the United States Coast Guard (USCG), is seeking to procure sustainment support services for L3HARRIS proprietary systems and equipment utilized onboard Command, Control, Communications, Computers, Intelligence Surveillance & Reconnaissance (C4ISR) assets. This contract, awarded on a sole-source basis to L3HARRIS Corporation, encompasses maintenance, engineering tasks, and training activities necessary to ensure maximum system availability over a five-year ordering period. The services are critical for maintaining the operational readiness and effectiveness of the USCG's C4ISR capabilities. For further inquiries, interested parties may contact Toy Benyetta Jefferson at Benyetta.Jefferson@uscg.mil or Marc Massey at marc.a.massey@uscg.mil.