What is the purpose of appointing a key and lock custodian?

• A. Ensure proper custody and handling of keys and locks used for protection of classified information.
• B. Manage the day-to-day operation of security alarms.
• C. Approve all storage container purchases.
• D. Train personnel in safe handling of keys.

Answer: (A)

Appointing a key and lock custodian centralizes responsibility for controlling access to keys and the locks that protect classified information. This role creates accountability and a clear, auditable process: keys are issued only to authorized personnel, a key control log tracks who has them, duplication is controlled, and lost or returned keys are promptly identified and accounted for. By maintaining secure storage, proper handling, and timely updates to the inventory, the custodian reduces the risk of unauthorized access, loss, or theft. Other tasks like alarm system operation, approving container purchases, or general training are separate functions and do not establish the focused control over key material that this role provides.