What is the maximum quantity of dry ice permitted per package on a passenger aircraft?

• A. 4 kg
• B. 50 kg
• C. 100 kg
• D. 200 kg

Answer: (D)

Dry ice can sublimate into carbon dioxide gas, which can accumulate and displace oxygen in the cabin or cargo hold. To protect people and ensure safe packing, there is a strict limit on how much dry ice can be in a single package on a passenger aircraft. That limit is 2.5 kilograms per package. Packages must be arranged to vent the gas as the dry ice sublimates, rather than being tightly sealed, to prevent pressure buildup. Larger quantities require different handling and are generally restricted to cargo operations with appropriate approvals and packaging. So, the safe per-package maximum for passenger aircraft is 2.5 kg, not values like 200 kg.