If Emergency Response documentation is added to the package, what type of substance is being shipped?

• A. Category A
• B. Category B
• C. Category C
• D. Not classified

Answer: (A)

Emergency Response Documentation is provided to guide responders if something goes wrong during transport. For infectious substances, the most dangerous category—Category A—requires this documentation to accompany the shipment, along with the standard packaging and labeling. This higher level of protection and information ensures responders have immediate, actionable guidance. Category B substances are considered less dangerous and don’t require ER documentation in the same way. Not Classified isn’t applicable to infectious substances, and Category C isn’t a recognized category in this context. So, when Emergency Response documentation is added, the substance being shipped is Category A infectious substance.