Meaning
Maritime transport regulations set by the International Maritime Organization govern the shipment of small lithium batteries under reduced safety requirements. Sourcing managers utilize the imdg code special provision 188 to bypass full class nine hazardous materials routing for qualified shipments. This provision reduces shipping costs and simplifies the customs clearance process for low-power cells.
It applies only when the lithium content is below specified safety thresholds. Cells that meet these criteria are spared from the requirement to use certified packaging designs.
Technical Criteria
Battery capacity limits determine whether a cargo is eligible for the regulatory relaxation. To qualify under the imdg code special provision 188, lithium ion cells must not exceed twenty watt-hours of capacity. Single-alloy lithium metal cells must contain less than one gram of lithium to use this option.
Packaging Requirement
Sturdy outer containers must protect the cells from damage and prevent accidental activation during the voyage. Utilizing the imdg code special provision 188 requires that each package passes a one-point-two meter drop test without damage. The shipping boxes must also feature a specific lithium battery mark on the exterior.
Sourcing Constraint
Logistics planners must evaluate whether their selected battery chemistry and cell size fit within these limits. When a shipment exceeds the boundaries of the imdg code special provision 188, the cargo must be declared as fully regulated class nine goods. This shift increases the transit times and restricts the choice of available cargo vessels.
