Biological agents or toxins are classified under which UN/DOT hazard division?

• A. Division 2.3
• B. Division 6.2
• C. Division 6.1
• D. Division 3.1

Answer: (B)

Biological agents or toxins fall under Division 6.2 because they pose an infectious hazard rather than a purely chemical one. In the UN/DOT system, Division 6 covers toxic substances, with 6.1 for chemical toxins and 6.2 specifically for infectious substances, including living organisms or biological toxins that can cause disease. This distinction matters because infectious substances require stricter containment, packaging, and labeling to prevent exposure during transport. For comparison, a toxic gas goes in Division 2.3 and flammable liquids go in Division 3.1. So the Division 6.2 designation is the one that correctly identifies biological agents or toxins.