What is IMDG Code Special Provision 188?
Special Provision 188 (SP188) of the IMDG Code provides an exemption for certain small lithium batteries transported by sea. When all the conditions of SP188 are met, the cells and batteries are not subject to the other provisions of the IMDG Code, simplifying shipping while maintaining safety.
Which Batteries Qualify Under SP188?
To qualify for SP188, lithium batteries must not exceed the following limits:
| Battery Type | Maximum Limit |
|---|---|
| Lithium ion cell | 20 Wh |
| Lithium ion battery | 100 Wh |
| Lithium metal cell | 1 gram lithium content |
| Lithium metal battery | 2 grams aggregate lithium content |
Lithium-ion batteries shipped under SP188 must also display the Watt-hour (Wh) rating on the outside of the battery casing (except certain batteries manufactured before 1 January 2009).
SP188 Requirements
In addition to the capacity limits, batteries must:
- Have successfully passed the UN 38.3 testing requirements.
- Be protected against short circuits.
- Be packed in inner packaging that completely encloses each battery (unless installed in equipment).
- Be packed to prevent movement or damage during transport.
- Be manufactured under an appropriate quality management programme.
If any of these conditions are not met, the shipment must comply with the full IMDG Code requirements.
Benefits of SP188
Correctly applying SP188 can:
- Reduce dangerous goods compliance requirements.
- Simplify shipping documentation.
- Reduce transport costs.
- Minimise delays and carrier rejections.
- Improve supply chain efficiency for small lithium battery shipments.
Need Help with Lithium Battery Shipping?
DG Solutions Singapore provides expert advice on IMDG Code compliance, lithium battery packaging, documentation, dangerous goods declarations, and shipping by sea, air, and road.
If you're unsure whether your lithium battery shipment qualifies under Special Provision 188, our experienced team can help ensure your shipment is fully compliant before it leaves Singapore.