In the 1978 study Fire Code Inspections and Fire Prevention: What Methods Lead to Success?, what percentage of fires were caused by conditions that could be observed during inspection?

• A. 4-8%
• B. 10-20%
• C. 1-3%
• D. 15-25%

Answer: (A)

Inspections are most effective at catching hazards that are visible and capturable in a routine check, such as blocked exits, improper storage, or obvious electrical issues. The 1978 study showed that only about four to eight percent of fires were caused by conditions that could be observed during inspection. This means most fires arise from factors not readily seen during a standard visit—latent equipment failures, maintenance gaps, improper use, or human behavior after the inspector has left. The takeaway is that while inspections help reduce risk, they can't account for the majority of fire causes, so prevention relies on ongoing maintenance, proper use, and broader safety practices beyond one-time observations.