Which security component is necessary for Category I and II storage facilities that are not under constant surveillance?

The need for an Intrusion Detection System (IDS) in Category I and II storage facilities that are not constantly monitored stems from the critical importance of maintaining security for hazardous materials. Category I and II facilities handle materials that pose significant risks, and ensuring these areas are protected from unauthorized access is paramount for public and environmental safety.

An IDS serves to detect intrusion attempts and alert personnel to potential security breaches in real time. This capability is especially crucial in facilities lacking round-the-clock surveillance, as the IDS provides an automated means to monitor the premises and respond promptly to any unauthorized entry or suspicious activity. This system not only enhances security but also complements other safeguards, ensuring that even in the absence of ongoing human oversight, appropriate measures are in place to protect both the facility and the surrounding community.

In contrast, while options such as an Access Control System and a Fire Alarm System provide essential safety and regulatory functions, they do not specifically address the need for immediate detection and response to unauthorized access, which is the primary concern in this context.