What restriction applies to alarm systems installers regarding electronic access control devices?

The correct choice highlights a significant restriction for alarm system installers in the context of electronic access control devices. Installers are not permitted to rekey devices that are activated by a traditional key. This rule is in place to ensure the security and integrity of access control systems, as the act of rekeying could potentially allow unauthorized access or compromise sensitive areas.

Rekeying an electronic device typically involves changing the internal mechanism that the device relies on for access, which should only be done by authorized personnel who have proper training and certification. By restricting installers from performing this task, it safeguards against potential misuse and secures the chain of access controls to sensitive locations.

Additionally, this restriction emphasizes the importance of having qualified personnel handle tasks that involve changes to security mechanisms. This reflects best practices in the security industry, where the risks associated with improper handling of access devices are significant. Thus, the focus on limiting rekeying to qualified individuals highlights the industry's commitment to maintaining high security standards.