Dry Ice Shipping Regulations: IATA Class 9 Compliance for Air Cargo

IATA Dry Ice Shipping Regulations for Air Cargo

Dry ice (solid carbon dioxide) is classified as a Class 9 Miscellaneous Dangerous Good under IATA regulations. As a critical refrigerant for pharmaceutical, biotech, and food shipments from South Florida, understanding dry ice shipping compliance is essential for air cargo operations.

Why Dry Ice Is Classified as Dangerous

Dry ice sublimes into carbon dioxide gas, which in enclosed spaces can displace oxygen and cause asphyxiation. In aircraft cargo holds, excessive CO2 accumulation can affect crew and aircraft systems. This is why IATA imposes strict quantity limits and ventilation requirements.

IATA Packing Instruction 954

Packing Instruction 954 governs dry ice shipments by air. Packaging must allow CO2 gas to vent—hermetically sealed containers are prohibited as pressure buildup can cause explosive failure. Outer packaging must be clearly marked with the UN1845 proper shipping name and net weight of dry ice.

Quantity Limits per Package

Maximum dry ice quantity varies by aircraft type and operator. Passenger aircraft typically limit dry ice to 2.5 kg per package, while cargo aircraft allow up to 200 kg. Airlines may impose their own lower limits, so checking with your carrier is essential before shipping.

When Dry Ice Is Used as a Refrigerant

When dry ice is used to cool non-dangerous goods (food, biologics, pharmaceuticals), the primary shipment is not classified as dangerous goods—only the dry ice itself carries the Class 9 designation. However, proper marking and documentation are still required.

Shipper’s Declaration Requirements

Dry ice shipments used as a refrigerant may not require a full Shipper’s Declaration for Dangerous Goods, but the air waybill must include the UN number, proper shipping name, number of packages, and net weight. Working with a freight forwarder ensures proper documentation.

South Florida Pharmaceutical and Biotech Applications

Miami’s role as a pharmaceutical distribution hub means thousands of dry ice shipments transit MIA daily. Vaccines, biologics, diagnostic specimens, and clinical trial materials all rely on dry ice for temperature maintenance during air transport from South Florida to global destinations.