Meaning
Standardized codes printed on shipping cartons prove that the packaging has been tested and certified for transporting dangerous goods legally. This certification code is the un 4g specification mark, and it must be clearly visible on fiberboard boxes containing lithium batteries. Sourcing managers check for this mark to ensure that the packaging complies with international transport laws.
The code indicates that the package has passed specific drop and stack tests.
Code Structure
The code contains several parts, including the packaging symbol, the type of box, the packaging group, and the country of certification. Under the un 4g specification mark guidelines, the letter X, Y, or Z shows which packaging group the box is certified to handle. Sourcing teams use this detailed code to verify that the packaging matches the hazard level of the batteries being shipped.
This check prevents the use of incorrect or unsafe boxes.
Compliance Audit
Quality teams must inspect the shipping boxes to confirm that the certification code is printed clearly and matches the laboratory test reports. Having a valid un 4g specification mark ensures that the shipment will be accepted by airlines, shipping lines, and customs officials worldwide. This verification is a critical part of the logistics audit process, preventing the risk of cargo rejection or heavy fines.
Sourcing managers perform these audits before the shipment leaves.
Commercial Value
Logistics departments must prioritize the use of pre-certified boxes to avoid costly delays and the risk of having shipments returned. Sourcing teams should select packaging suppliers who provide certified cartons that carry this mark as a standard feature. This proactive selection prevents product delays and ensures that the batteries are transported safely and legally.
Sourcing budgets should include the costs of compliant packaging to protect the company’s financial interests.