Imdg
Is IMDG only a shipboard rule?
No. It applies across the maritime logistics chain, including ports, terminals, container yards, and packing facilities tied to ocean carriage.
What are the core IMDG data elements a WMS or ERP should store?
UN number, Proper Shipping Name, hazard class, packing group where applicable, packing instruction, limited/excepted quantity status, segregation requirements, and shipper emergency information.
What documents are typically required for an IMDG shipment?
The Dangerous Goods Declaration, often a multimodal DG form when intermodal legs are involved, and the Container/Vehicle Packing Certificate confirming compliant packing and securing.
The International Maritime Dangerous Goods (IMDG) Code is the IMO’s mandatory rule set for the safe transport of dangerous goods by sea in packaged form. It governs classification, packaging, marking, labeling, documentation, stowage, segregation, container loading, and emergency response for hazardous materials shipped by vessel. This framework determines whether a hazardous raw material, WIP, or finished good can be released to ocean freight.
On the shop floor, IMDG compliance begins at material classification. The SDS, UN number, Proper Shipping Name, hazard class, and packing group determine whether an item can move into export staging, containerization, or ocean dispatch. In receiving and raw-material tracking, inventory masters must carry these IMDG attributes so the WMS can enforce segregation rules, prevent incompatible materials from being palletized together, and block noncompliant outbound picks before container stuffing. In warehousing, label control, placarding, pallet build rules, and container packing certificates keep a 20-foot or 40-foot export container compliant before it is gated into the port. For procurement, the code affects vendor qualification because buyers must confirm the supplier can provide correct DG classification data, compliant packaging, and transport-ready documentation. Operationally, the material cannot just be “in stock”; it must be ocean-ready stock, with the right UN marking, packaging specification, segregation status, and paperwork chain from consignor to consignee.
Misclassified item master data: A wrong UN number or hazard class leads to incorrect packing instructions, triggering vessel rejection, rework, or enforcement action when the load does not match the declared danger profile.
Noncompliant container build: Incompatible dangerous goods are staged or stuffed together, or placards and labels are missing, creating rejection risk at terminal gate-in and safety risk during voyage.
Documentation break: The Dangerous Goods Declaration, packing certificate, and transport description do not align with the physical load, so the shipment is held, repacked, or rolled to the next vessel.