Flammable Liquid Shipping: IATA and IMDG Class 3 Compliance

Shipping Flammable Liquids Under IATA and IMDG Regulations

Class 3 flammable liquids—including paints, adhesives, perfumes, alcohols, and petroleum products—are among the most commonly shipped dangerous goods. South Florida businesses must comply with both IATA and IMDG regulations when shipping these materials by air or ocean.

Classification by Flash Point

Flammable liquids are classified based on their flash point—the lowest temperature at which vapors ignite. IATA and IMDG assign packing groups based on flash point and boiling point: Packing Group I (great danger), Packing Group II (medium danger), and Packing Group III (minor danger).

Common Flammable Liquids in Commerce

Many everyday products are Class 3 flammable liquids: nail polish, perfume, paint, paint thinner, hand sanitizer, adhesives, printing inks, essential oils, and industrial solvents. South Florida’s cosmetic, marine, and construction industries ship these products regularly.

IATA Air Shipping Requirements

Flammable liquids shipped by air require UN-specification packaging, specific quantity limits per package, and a Shipper’s Declaration for Dangerous Goods. Some highly flammable liquids (Packing Group I) are forbidden on passenger aircraft and restricted even on cargo aircraft.

IMDG Ocean Shipping Requirements

Ocean shipping of flammable liquids under IMDG allows larger quantities but requires proper container stowage, segregation from incompatible materials, and specific marking and labeling. Marine pollutant status must be evaluated for liquids that could harm the marine environment.

Packaging and Inner Container Limits

Inner containers must not exceed specified volumes (typically 1-5 liters for air, larger for ocean), and outer packaging must be tested to UN performance standards. Absorbent material must be placed between inner and outer packaging to contain any leakage.

Emergency Response and Spill Planning

Shippers must provide emergency contact information accessible 24/7. A logistics partner with hazmat expertise ensures proper emergency response information accompanies every flammable liquid shipment from South Florida.