Dry Ice Shipping by Air in India: Class 9 Rules Explained

What Is Dry Ice and Why Is It a "Dangerous Good"?

Dry ice is solid carbon dioxide (CO₂) at -78.5°C. When it sublimes (converts directly from solid to gas), it releases large volumes of CO₂ — roughly 845 times its solid volume. In an enclosed aircraft cargo hold, CO₂ accumulation can displace oxygen, creating a potentially dangerous environment for ground crew and in rare cases affecting aircraft systems.

This is why dry ice is classified as a Class 9 Miscellaneous Dangerous Good under IATA DGR, assigned UN1845. It must be shipped and documented according to the applicable packing instruction — PI 954 (IATA DGR 2026).

Who Ships Dry Ice by Air in India?

Dry ice is used extensively in India's pharmaceutical, biotech, and food logistics sectors:

• Pharmaceutical companies shipping temperature-sensitive APIs, vaccines, and biologics
• Diagnostic labs sending tissue samples, blood products, and pathological specimens
• Seafood and premium food exporters maintaining cold chain
• Research institutions shipping biological samples internationally
• E-commerce companies shipping premium frozen products (growing segment)

IATA DGR Regulations for Dry Ice (PI 954)

Under Packing Instruction 954, the following rules apply for dry ice shipments:

Passenger Aircraft Limits

• Maximum 2.5 kg per package when used as a refrigerant for non-DG goods
• The package must allow CO₂ gas to escape (no hermetically sealed containers)
• Used as a refrigerant for DG goods: subject to additional applicable PI

Cargo Aircraft Limits

• Maximum 200 kg per package for cargo aircraft operations
• No restriction on total consignment quantity, but each package ≤200 kg
• Must be packed in containers that permit off-gassing of CO₂

Marking Requirements

Each package must be marked with:

• UN1845
• Proper Shipping Name: "Carbon dioxide, solid" or "Dry ice"
• Net quantity in kilograms (e.g., "Dry ice 5 kg")
• Class 9 label (black and white striped diamond)

Documentation for Dry Ice Shipments in India

A Shipper's Declaration for DG (DGD) is required for dry ice, even when used purely as a refrigerant. The DGD must state:

• UN Number: UN1845
• Proper Shipping Name: Carbon dioxide, solid
• Class: 9
• Packing Group: N/A (Class 9 has no packing group assignment)
• Quantity: Total net weight in kg
• Packing Instruction: PI 954

Dry Ice in Pharmaceutical Shipments: Additional Requirements

For pharmaceutical cold chain shipments from India, additional requirements apply beyond IATA DGR:

• GDP (Good Distribution Practice) compliance: Temperature excursion documentation, pre-conditioning of packaging, probe calibration records
• CDSCO Export NOC: For certain biologics and scheduled drugs, an export no-objection certificate is required
• DGCA Approval: For commercial quantities of dry ice, some airlines require DGCA-sanctioned operator approval before accepting
• Airline-specific limits: IndiGo, Air India, and international carriers each have their own dry ice acceptance policies — always verify per airline DG manual

Dry Ice at Indian Airports: Practical Tips

Based on our experience handling pharmaceutical cold chain from Delhi IGI, Mumbai CSIA, and Bangalore KIA:

• Always pre-notify the airline DG desk 24 hours before tender — dry ice shipments require advance acceptance
• Present your DGD, airway bill, and packing certificate at the DG acceptance counter (not the general cargo counter)
• Use styrofoam (EPS) or Pelican-style cases that vent naturally — do NOT use airtight containers
• Weigh dry ice quantity precisely — overstating causes airlines to flag excess CO₂ load for cargo hold calculations
• For international shipments, check destination country requirements — some countries restrict Class 9 DG entry for certain commodities

How MFLS Handles Dry Ice Cold Chain

Our cold chain team in Delhi, Mumbai, and Bangalore manages the complete dry ice logistics workflow — from pre-conditioning and packaging to DGD preparation, airline DG desk coordination, and real-time temperature monitoring updates. We work with all major Indian carriers and have direct DG desk relationships at all three metro airports.