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

When performing Preventive Maintenance Inspections (PDI) on entrance and compartment doors, having two sets of keys for all locks is essential for operational efficiency and safety. One set of keys is typically designated for use by the building or facility management, while the second set can be held in reserve or assigned to security personnel or emergency responders. This ensures that access is readily available in case of emergencies or for authorization purposes without unnecessarily complicating key management.

Two sets of keys provide a balance between access control and security. It minimizes the risk of being completely locked out due to lost or misplaced keys, allowing for quick response in critical situations. Furthermore, this practice helps maintain security protocols by ensuring that access to restricted areas can be monitored and a log can be kept of who has access to which key set.

Having more than two sets may lead to logistical complications in keeping track of who has which keys, increasing the risk of keys being lost or mismanaged. Hence, while multiple sets may seem to enhance accessibility, they actually can compromise key security and accountability, reinforcing why two is the optimal number.