Upon receipt of a service request, repairs for a proprietary alarm system shall begin within?

• A. 18hrs
• B. 8hrs
• C. 24hrs
• D. 48hrs

Answer: (A)

When a service request comes in, the key idea is how quickly repairs on a proprietary alarm system should start to keep protection active. The requirement set this window at 18 hours, meaning a technician should begin work within that period after the request is logged. This strikes a balance between prompt response and real-world field conditions—travel time, parts availability, and scheduling. Starting within 18 hours helps minimize downtime, preserves life safety and property protection, and keeps the system reliable.

Choosing a much shorter window, like 8 hours, would demand near-immediate mobilization that isn’t always feasible in routine operations. Longer windows, such as 24 or 48 hours, would leave the system unprotected for too long, increasing risk. The 18-hour rule provides a practical, enforceable target that still prioritizes rapid restoration of service.