When performing PDI on entrance and compartment doors, how many sets of keys should exist for all locks?

The standard practice for managing locks on entrance and compartment doors typically involves having two sets of keys for all locks. This approach ensures that there is a primary keyset that is used for regular access and a secondary set that can serve as a backup in case the primary set is lost or damaged.

Having two sets of keys enhances security and accessibility because it allows for redundancy while still keeping key control manageable. In situations where one key is lost, the second can be used without the need for immediate rekeying or access interruption. Additionally, it provides an opportunity for key sharing among team members or security personnel, who may need access at different times while maintaining a level of security to prevent unauthorized access.

In scenarios where only one set of keys exists, it poses a risk if that key is misplaced, potentially locking out users entirely until a solution is found. More than two sets, such as three or four, may lead to confusion in key management and could increase the risk of loss or unauthorized access. Therefore, maintaining two sets strikes a balance between accessibility, security, and manageability.