What is the limit for shipments of dry ice if either pack is not operational?

In the context of shipping with dry ice, regulatory guidelines establish specific limits based on operational capabilities. If a particular packing system or pack is deemed non-operational, the maximum allowable quantity for shipments of dry ice is set at 50 pounds. This limit is important for safety reasons, as dry ice can produce carbon dioxide gas, which poses suffocation hazards in poorly ventilated areas if large quantities are used. Shipping over this limit when a pack is not operational can lead to serious risks during transport. Understanding and adhering to this limit is essential for compliance with safety regulations and for ensuring safe shipping practices.