Which statement about dry ice packaging is true?

Which statement about dry ice packaging is true?

• A. No label is required
• B. It must carry a Class 7 label only
• C. The exterior must indicate carbon dioxide or dry ice and carry a Class 9 label
• D. It must be labeled as flammable

Answer: (C)

Labeling dry ice for transport is about clearly identifying the material and its hazard so handlers know how to manage it safely. Dry ice is solid carbon dioxide; as it sublimates, it releases CO2 gas, which can displace oxygen in confined spaces. For shipping, the exterior of the package must clearly indicate it is dry ice or carbon dioxide and carry a Class 9 label (miscellaneous dangerous goods). This combination communicates the specific hazard to anyone handling, stacking, or inspecting the shipment and aligns with regulatory requirements. That’s why this statement is the best choice: it accurately reflects both the identification and the appropriate hazard labeling. The other options aren’t correct because no label is not allowed for dry ice, a Class 7 label would be incorrect since that class is for radioactive materials, and labeling it as flammable is misleading since dry ice isn’t flammable; it’s a cooling agent that sublimates to CO2 gas.

Labeling dry ice for transport is about clearly identifying the material and its hazard so handlers know how to manage it safely. Dry ice is solid carbon dioxide; as it sublimates, it releases CO2 gas, which can displace oxygen in confined spaces.

For shipping, the exterior of the package must clearly indicate it is dry ice or carbon dioxide and carry a Class 9 label (miscellaneous dangerous goods). This combination communicates the specific hazard to anyone handling, stacking, or inspecting the shipment and aligns with regulatory requirements.

That’s why this statement is the best choice: it accurately reflects both the identification and the appropriate hazard labeling. The other options aren’t correct because no label is not allowed for dry ice, a Class 7 label would be incorrect since that class is for radioactive materials, and labeling it as flammable is misleading since dry ice isn’t flammable; it’s a cooling agent that sublimates to CO2 gas.