You must ensure the battery is at 30% charge or less. You also need to use specific new UN numbers like UN 3556 or UN 3558 and provide a UN 38.3 test summary to prove the battery is safe for transport.
Key Takeaways
Mandatory 30% Charge: From 1 January 2026, the 30% State of Charge (SoC) limit is a strict legal requirement for battery-powered vehicles in our air network.
New UN Classifications: You must use UN 3556 for Lithium-ion and UN 3558 for Sodium-ion vehicles to ensure correct documentation.
Air Express Focus: Shipping via our time-definite air network provides the fastest path for high-value e-mobility components arriving in Cambodia.
Digital Proof: You must link your UN 38.3 test summaries and SoC declarations via QR codes on all shipping documents for smooth clearance.
Shipping electric vehicles (EVs) in 2026 means handling large-scale dangerous goods. The rules have shifted from best practice suggestions to mandatory international laws with heavy penalties for mistakes. These regulations require a good understanding of IATA safety standards to keep your shipments moving smoothly through customs at Phnom Penh Airport without delays. With our local team here in Cambodia, we can help make this process straightforward for you.
What are the new IATA 2026 State of Charge rules?
The 30% State of Charge (SoC) rule is now the law for all battery-powered vehicles in air freight. Under the IATA 67th Edition, any vehicle with a battery exceeding 100Wh must be at 30% SoC or less.
Immediate Rejection: If your vehicle arrives for its flight with a 50% charge, it will be rejected.
Extra Costs: Missed flight windows and storage fees can quickly impact your profit per unit.
Small Vehicles: These rules apply to e-scooters and e-bikes as well.
Special Permits: You will need a formal Special Provision A331 approval if a vehicle must ship at a higher charge for technical reasons.
We are here to help you understand these energy levels so they match your declaration. A variance of 1,025,000 KHR (around $250 USD) in surcharges per pallet can happen if you do not plan for these handling needs.
Why is the air network the priority for high-value e-mobility?
Moving electric vehicles via air express provides a level of speed and security that other modes cannot match. Our global network is built to handle the technical needs of 2026 e-mobility, connecting your business to the world from right here in Cambodia.
Speed of Recovery: Air express reduces the time your capital is tied up in transit.
Climate Control: Our hubs provide a controlled environment that helps protect sensitive electronics.
Priority Handling: Time-definite shipments get first-on, first-off priority on our dedicated aircraft.
Global Access: We reach over 220 countries and territories to support your global fleet goals.
How do you classify your vehicle?
The year 2026 has introduced specific UN numbers to replace generic codes. This helps emergency responders understand exactly what chemical risk they face. Using the wrong code on your commercial invoice is a major red flag for customs inspectors.
UN 3556: This is the standard for most EVs powered by Lithium-ion batteries.
UN 3557: This applies to vehicles powered by Lithium-metal batteries often found in industrial gear.
UN 3558: This is for the newer Sodium-ion batteries becoming common in budget e-mobility.
Maturity Check: If you're importing vehicles, it’s important to ensure your overseas suppliers use these correct 2026 codes.
Sodium-ion vehicles are generally lower risk because they can be discharged to zero volts without damage. However, they're still regulated under the same 30% SoC rules as lithium.
What documentation is mandatory for an EV shipment in 2026?
Customs authorities in Cambodia now demand a full safety biography of the battery inside the vehicle. Without the right lab proof and declarations, your shipment will be held for a manual audit. Importers of electronics into Cambodia know that pre-approval and correct permits are vital for avoiding delays, and the same principle applies here.
UN 38.3 Test Summary: This is the lab proof that the battery passed rigorous safety tests.
SoC Declaration: A formal statement confirming the battery is at 30% or less.
Safety Data Sheet (SDS): This must reference the 2026 IATA 67th Edition regulations.
Digital Access: Our MyDHL+ platforms let you upload QR codes for these summaries directly onto your waybill.
This ensures that the General Department of Customs and Excise (GDCE) can verify your data instantly. For certain regions, you must also follow specific 12-digit HS code requirements that became mandatory recently.
What are the packaging and labelling requirements?
EVs are classified as Dangerous Goods in Apparatus. They require specific Class 9 Hazard Labels that must be visible on the packaging or the vehicle itself. The 2026 labels combine symbols for both Lithium and Sodium-ion risks.
Class 9 Label: This is the primary mark for miscellaneous dangerous goods.
CAO Label: This is mandatory if the battery size exceeds passenger aircraft limits.
Battery Mark: This is for vehicles that do not meet the full exceptions.
Safety Compliance: We follow Packing Instruction (PI) 952 to ensure your vehicle is handled according to air safety standards.
Ensuring these labels meet the standards of the State Secretariat of Civil Aviation is critical. A single missing sticker can lead to a fine of 20,500,000 KHR (around $5,000 USD) or more per shipment.
How can you help protect your EV supply chain?
The trend is moving toward digital visibility to provide real-time monitoring. This visibility is becoming a requirement for high-value insurance policies on luxury EV shipments.
Thermal Monitoring: We use SmartSensor tech to help track temperature and humidity during transit.
Instant Alerts: You can receive notifications if your shipment encounters unexpected conditions.
Peak Planning: Space for dangerous goods can tighten during the Khmer New Year holiday period in April.
Early Scheduling: Booking your shipments early ensures you get the capacity you need.
Are you ready to ship your next fleet?
Navigating the 2026 battery regulations requires a partner who understands the technical nuances of dangerous goods in an express network. By mastering the SoC rules and the new UN classifications, you can turn a major logistics risk into a smooth operation. Speak to a DHL specialist here in Cambodia today to check your fleet plan and move your vehicles with confidence.
Frequently Asked Questions
It is a safety rule designed to reduce the risk of fire during flight. Batteries with lower energy levels are much less likely to experience a thermal event if they are damaged during transit.
DHL Express focuses on international air express services. For ocean freight or large-scale containerised shipping, for example through Sihanoukville Port, we recommend speaking with our colleagues in DHL Global Forwarding.
UN 3556 is for Lithium-ion powered vehicles, while UN 3558 is for the newer Sodium-ion technology. Using the correct code on your documentation is essential to avoid customs delays with the GDCE and to help emergency responders.
We use digital platforms that allow you to upload safety summaries and declarations directly to your waybill. Our local specialists in Cambodia are here to help you ensure your safety data sheets meet the latest 2026 standards, making the process simpler for you.
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