Toxicology testing is REQUIRED after which class of mishaps?

• A. Class A and B
• B. Class C and D
• C. All mishaps
• D. None of the above

Answer: (A)

Toxicology testing is focused on the most serious mishaps to check whether impairment contributed to the event. When a mishap results in fatalities, serious injuries, or substantial damage, investigators routinely collect samples to test for alcohol, drugs, and other toxins. The goal is to determine if impairment affected performance and to understand causality for safety improvements. Because these high-severity cases have the greatest potential for impairment to be a factor, toxicology is required in those investigations. In less severe incidents, toxicology isn’t routinely required unless impairment is suspected or mandated by policy.