Environmentally Hazardous Substance Shipping: Marine Pollutant IMDG Guide

Shipping Environmentally Hazardous Substances

Environmentally hazardous substances (EHS) classified as UN3077 (solid) or UN3082 (liquid) under Class 9 of IATA DGR and IMDG Code represent a growing category of regulated dangerous goods. These products may not present acute human health hazards but are toxic to aquatic organisms, making their proper transport and containment essential for environmental protection.

Classification Criteria

Environmental hazard classification is based on aquatic toxicity data including acute LC50/EC50 values and chronic NOEC values for fish, crustaceans, and algae. Products meeting the criteria specified in the UN GHS Chapter 4.1 are classified as environmentally hazardous. Many pesticides, industrial chemicals, and petroleum products carry EHS classification as either primary or subsidiary hazards.

Marine Pollutant Designation

The IMDG Code applies marine pollutant designation to substances meeting aquatic toxicity criteria for ocean transport. Marine pollutant packages must display the triangular fish-and-tree mark in addition to any primary hazard labels. Containers holding marine pollutants must display the marine pollutant mark on all four sides alongside any required class placards.

IATA Requirements

IATA DGR applies EHS classification to air transport with packaging requirements under Packing Instructions 956 (liquids) and 956 (solids). Limited quantity provisions may apply for smaller shipments. Air freight documentation must identify the environmentally hazardous substance proper shipping name and include any marine pollutant designation when applicable to multi-modal shipments.

Impact on Shipping Operations

Environmental hazard classification affects shipping in practical ways beyond marking requirements. Insurance costs may increase for marine pollutant shipments due to environmental cleanup liability. Spill response requirements are more extensive for products classified as environmentally hazardous. Warehouse storage must include secondary containment to prevent environmental releases.

Products Commonly Affected

Essential oils, certain plasticizers, many pesticide formulations, some lubricating oils, and various industrial chemicals carry environmental hazard classifications. E-commerce sellers of essential oils and natural products may not realize their products trigger EHS classification at certain concentrations. Logistics providers should verify environmental classification for all chemical products they handle.

Go Freight’s Environmental Compliance

Go Freight ships environmentally hazardous substances with full regulatory compliance from South Florida. Our team ensures proper classification, marine pollutant marking, and environmental containment measures throughout the transport chain.