In air transport, elevated temperature liquids are permitted?

• A. Yes
• B. Not allowed under any circumstances
• C. Only with cooling
• D. Yes, with special permits

Answer: (C)

Hazard control through temperature is what governs this scenario. Liquids that are hotter than the ambient can generate extra vapor pressure, risk leakage, and even damage packaging or create scalding hazards in the aircraft environment. To prevent these risks, the rule requires that elevated-temperature liquids be cooled to a safe, ambient-like temperature before they are accepted for air transport. That’s why the correct approach is to transport them only after cooling.

The other ideas don’t fit the standard requirement. Shipping hot liquids without cooling would violate safety rules, and while special permits can apply in some unusual cases, the normal and expected condition for elevated-temperature liquids is cooling to a safe temperature before shipment.