To lower the cost and help speed the pace of technology upgrades for C5ISR [command, control, computers, communications, cyber, intelligence, surveillance, and reconnaissance] systems on Army vehicles – while supporting the U.S. Department of Defense (DoD) mandate for modular open system architecture (MOSA) solutions – the U.S. Army’s Program Executive Officer (PEO) for Ground Combat Systems (GCS) has issued an Interface Description Document (IDD) that describes the Standardized A-Kit/Vehicle Envelope (SAVE), a new physical SWAP and connector standard for fielding new C5ISR capabilities.