Which information marked on a package can be useful in an emergency response situation?

Which information marked on a package can be useful in an emergency response situation?

• A. UN number
• B. Proper shipping name
• C. Hazard label
• D. All of the above

Answer: (D)

All of these pieces of information are useful because they work together to give responders a clear, rapid understanding of what they’re dealing with and how to respond safely. The UN number provides a unique identifier that can be looked up in emergency response guides to reveal the exact substance and the recommended actions. The proper shipping name describes the material in a standardized way, reinforcing what the UN number indicates and guiding handling and response steps. The hazard label communicates the hazard class and any specific risks, directing immediate safety measures like PPE, citation of applicable containment methods, and ignition control. When used together, they remove ambiguity and speed up decisions about containment, evacuation needs, and protective actions. For example, a package with a recognizable UN number, the correct shipping name, and a hazard label for flammable liquid gives a complete picture for response teams to follow.