What is the chain of command on submarine?

The chain of command on a submarine typically starts with the commanding officer (CO), who holds the highest authority and is responsible for all operations and crew safety. Directly beneath the CO is the executive officer (XO), who assists with management and oversees day-to-day operations. Following the XO, department heads manage specific areas such as engineering, operations, and weapons, while crew members report to their respective supervisors within each department. This structured hierarchy ensures clear communication and efficient decision-making onboard.