Which factor is included as a Noise Evaluation Factor?

• A. Inventory
• B. Calibration of sound level meters
• C. AFI 48-151
• D. Fighter Index of Thermal Stress Zones

Answer: (A)

When evaluating noise exposure, starting with a thorough inventory of all noise sources is essential. This inventory lists equipment, processes, operating conditions, locations, and typical noise levels, providing the scope of what could contribute to overall exposure. With a complete inventory, you can identify where the highest risk lies, plan measurements effectively, and target controls (engineering, administrative, or PPE) where they’ll have the most impact. Calibration of sound level meters matters for data accuracy, but it’s a measurement-quality step rather than a factor that describes the noise environment itself. AFI 48-151 and the Fighter Index of Thermal Stress Zones relate to policies or other domains, not to identifying or evaluating noise sources. So the factor that is included as a Noise Evaluation Factor is the inventory.