What instruction sets the requirements of a vault or strong room?

The correct instruction that sets the requirements for a vault or strong room is SECNAVINST 5510.36. This instruction outlines the security and procedural requirements necessary for safeguarding sensitive materials, specifically addressing the design, construction, and maintenance of secure storage areas such as vaults and strong rooms. It provides guidance on physical security measures, access control protocols, and the responsibilities of personnel managing sensitive material within these secure locations.

The focus on secure storage rooms is critical in protecting classified information and limiting access to authorized personnel, which is why this instruction is foundational for personnel working in a security capacity, particularly for those in the Master-at-Arms rating. Understanding the stipulations within SECNAVINST 5510.36 is essential for maintaining compliance with security standards.