To which DOT Hazard Class are all biological etiologic agents and toxins assigned?

• A. 5
• B. 6
• C. 3
• D. 2

Answer: (B)

Biological etiologic agents and toxins are assigned to DOT Hazard Class 6, which covers poisonous or toxic materials. This classification is crucial for the safe handling and transport of substances that pose significant health risks due to their pathogenicity or toxicity.

Class 6 is further divided into two divisions: Division 6.1 includes toxic substances that can cause death or serious injury if inhaled, swallowed, or contacted through skin. Division 6.2 encompasses infectious substances that may contain pathogens capable of causing disease in humans or animals.

Overall, classifying these agents under Hazard Class 6 ensures that proper precautions and regulations are observed during their transportation, protecting public health and safety. This classification is distinct and important, differentiating biological materials from flammable substances (Class 3) and various types of reactive materials (Classes 2 and 5).