ISPM 15: when a wooden pallet or crate holds your cargo at the border

ISPM 15 is an international phytosanitary standard for wood packaging material used in trade outside the European Union. It requires pallets, crates and dunnage to be treated and to carry the IPPC mark. A missing compliant mark, or bark and pests in the wood, can hold your cargo at the border.

What does ISPM 15 is and why it exist?

Solid-wood packaging is a carrier that can move insects and larvae from one country to another. ISPM 15 exists to prevent that. The standard requires the wood to undergo an approved treatment, most commonly heat treatment, and then to be marked with a visible IPPC mark. The mark tells border authorities that the packaging meets the requirements and does not have to be treated as a phytosanitary risk.

One distinction is critical. ISPM 15 applies to trade outside the European Union. Inside the EU, wood packaging does not fall under this standard, so on purely intra-EU routes you do not need to look for the IPPC mark on a pallet. The problem begins exactly where the cargo crosses the external border of the Union.

Who does this concern?

ISPM 15 concerns anyone shipping or receiving goods on wood packaging outside the European Union. In practice it most often comes up in export and import to and from the United Kingdom, which is outside the EU, as well as in trade with other non-EU countries. If your goods stand on a wooden pallet or travel in a wooden crate and cross the external EU border, the packaging must comply with ISPM 15.

Importantly, the standard looks at the packaging, not the goods themselves. Even if the product has nothing to do with wood, a non-compliant pallet alone is enough to trigger a problem at the border. Responsibility for compliant packaging sits with the sending company, and the cost of any border action falls on the cargo.

How to check pallets before shipping

The best check is your own, before the cargo moves, because at the border it is already too late. Look at two things: the marking and the condition of the wood.

• The IPPC mark. Look for a burned or stamped mark on the pallet or crate. It shows the wheat-ear symbol plus codes for the country, the producer and the treatment used. The mark should be legible and permanent, not painted on or stuck on with a label.
• No bark. Wood with pieces of bark is a warning sign, because pests most often live under the bark. Pallets in poor shape raise suspicion regardless of the marking.
• No signs of pests. Insect exit holes, sawdust, visible larvae or mould are reasons why packaging can be rejected at the border.
• General condition. Cracked, rotten or heavily damp wood more easily raises doubts during a phytosanitary check.

If any of these points is in doubt, it is safer to replace the packaging before loading than to risk the whole shipment being held.

What does a non-compliant package risk?

The consequences land on the packaging, but they hit the whole cargo and the schedule. A missing compliant IPPC mark, or poor wood condition, meaning bark and pests, can lead to:

• Being held at the border. The cargo waits until the matter is resolved, which alone creates downtime and cost.
• Return of the packaging or shipment. In some cases non-compliant packaging is sent back to the sender.
• Destruction of the packaging. The wood may be destroyed, and all of these actions take place at the cost of the company responsible for the shipment.
• A broken deadline. For deliveries to trade fairs, a production line or a retail chain, the delay alone can cost more than the value of the pallet.

That is why at OTSL we treat wood packaging as something checked before loading on routes outside the EU, not a problem discovered at the border crossing. If you are not sure whether your pallets meet ISPM 15, let us settle it before dispatch through the contact form. We also help with customs clearance and preparing border procedures in advance, and we explain phytosanitary terms in the glossary.

Step by step

1. Material check. Determine whether your packaging and dunnage consist of solid wood subject to phytosanitary rules.
2. Treatment confirmation. Verify that all timber packaging has undergone approved heat treatment.
3. Mark inspection. Confirm that a clear and visible IPPC stamp with country and producer codes is applied.
4. Bark and pest screening. Inspect all wooden units to ensure they are free from bark, insects, and larvae.
5. Document preparation. Gather all accompanying transport declarations prior to presenting goods at border control.

Definitions

• ISPM 15 (International Standards for Phytosanitary Measures 15): An international phytosanitary standard specifying treatment and marking rules for solid wood packaging material in cross-border trade.
• IPPC (International Plant Protection Convention): The International Plant Protection Convention, whose official mark is applied to compliant wood packaging.
• Dunnage: Wood used to secure, brace, or support cargo during international transport.
• Heat treatment (HT): A process of heating wood to a specific core temperature for a required time to eliminate timber pests.

When does this rule not apply?

This requirement does not apply to packaging made entirely of processed wood, such as plywood, particle board, or fibreboard created using glue, heat, and pressure. The standard also does not apply to wood with a thickness of 6 mm or less and shipments moving solely within the European Union.

The OTSL role

OTSL helps businesses comply with international shipping rules and fit-for-border requirements across the UK, Poland, and Europe. Operating from Kielce with warehousing in Milton Keynes, the team assists in planning road transport and managing border clearance alongside documents outlined in our guide on T1, EUR.1 and certificate of origin.

Sources

• International Plant Protection Convention (IPPC), ippc.int : the body responsible for international phytosanitary standards, including ISPM 15.
• IPPC, list of ISPM standards: the official source for the text of the phytosanitary standards.