What should you review when performing annual NFPA 2001 system inspection?

• A. System status, detector function and alignment, release devices, alarms, interlocks, concentration verification, and impairments or changes.
• B. System status only.
• C. Detector function only.
• D. Release devices only.

Answer: (A)

A thorough annual NFPA 2001 system inspection must assess every factor that affects whether the system will perform as designed in an actual discharge. This means checking the overall system status to confirm readiness, ensuring detectors are functioning correctly and properly aligned, verifying release devices are operable, confirming alarms will activate and relay the correct signals, inspecting interlocks to ensure automatic safety sequences work, performing concentration verification to confirm the required agent concentration can be achieved and maintained, and noting any impairments or changes since the last inspection that could affect performance.

This holistic review is essential because a single missed element can compromise performance during an incident—even if other parts appear fine. Limiting the inspection to only the system status, only detector function, or only release devices would leave critical components unverified (alarms, interlocks, concentration verification, and changes affecting operation), which is why a comprehensive review is required.