CSOSS stands for which of the following?

• A. Engineering Operational Sequencing System
• B. Combat Systems Operational Sequencing System
• C. Combat Systems Operational Security System
• D. Command and Systems Operational Sequencing Scheme

Answer: (B)

CSOSS is the Combat Systems Operational Sequencing System. It’s the Navy’s standardized set of procedures that guides how the ship’s combat systems are operated—covering sensors, weapons, displays, and control interfaces—by laying out the exact sequence of steps to perform normal actions, troubleshoot, and respond to emergencies. The aim is consistency and safety, so watch teams across ships follow the same actions in the same order.

The other phrases don’t match the established name. One version would imply a focus on engineering procedures rather than combat systems. Another suggests security, which isn’t what CSOSS documents. The last option uses different wording and isn’t the recognized term for this system.