If you export on wooden pallets, your shipment could be held, re-treated at your cost, or destroyed at the border — in over 180 countries, with no appeal. This guide explains the regulation every UK exporter needs to understand, which markets carry the highest risk, and how switching pallet material removes the compliance problem entirely.
What Is ISPM 15 and Why Does It Affect UK Exporters?
ISPM 15 — the International Standards for Phytosanitary Measures No. 15 — is an international regulation controlling the movement of wooden packaging across borders. Its purpose is to stop invasive pests and plant diseases from travelling in wood.
It covers all wooden packaging: pallets, crates, dunnage, and cable reels. And it applies in over 180 countries — including every major UK export market.
Wooden pallets must carry the IPPC wheat-sheaf mark stamped with a country code and treatment code (HT for heat treatment). Without it, the pallet — and potentially the entire consignment — is non-compliant at customs.
Key for UK businesses: ISPM 15 came into force for UK exporters on 1 January 2021. Wooden packaging moving from Great Britain to EU member states — previously free-moving under single-market rules — now requires full ISPM 15 compliance. Many UK exporters are still unaware of this change.
What Happens If Your Wooden Pallets Don’t Comply?
When border authorities intercept non-compliant wooden packaging, they have three options — and none of them are good for the shipper:
- Re-treatment at the destination port, arranged and paid for by you
- Destruction of the wooden packaging, and in some cases the entire consignment
- Refusal of entry, requiring re-export at your cost
The delay alone can run into days or weeks. For time-sensitive goods — pharmaceuticals, electronics, seasonal retail — the downstream cost of that hold often far exceeds the treatment bill itself.
Which Export Markets Enforce ISPM 15 Most Strictly?
United States
US Customs and Border Protection enforces ISPM 15 without exception. Non-compliant wooden packaging is subject to immediate re-treatment or re-export. Air freight shipments carry the same requirements as sea freight — there is no exemption for low-value goods or small consignments.
European Union
Post-Brexit, the UK is classified as a third country. All wooden packaging on UK consignments entering the EU must carry a valid IPPC mark. This catches businesses out more than any other region — particularly those who shipped freely to Europe before 2021 and haven’t reviewed their pallet spec since.
China
China’s General Administration of Customs (GACC) is one of the world’s stricter enforcers. Port holds are common, and the cumulative cost of treatment, port storage, and consignment delays can run into thousands of pounds annually for high-volume shippers.
Australia and New Zealand
Australia runs one of the most rigorous biosecurity regimes in the world. The Australian Department of Agriculture, Fisheries and Forestry mandates ISPM 15 compliance on all wooden packaging, with frequent and thorough port inspections. Non-compliance can result in mandatory treatment, re-export, or destruction — with no allowance made for urgency or shipment value.
Middle East and South-East Asia
Enforcement varies, but major markets including the UAE, Saudi Arabia (which added ISPM 15 requirements in July 2024), Singapore, and South Korea have all implemented the standard. Relying on regional inconsistency as a strategy is an increasing compliance risk.
How Do Paper Pallets Solve the ISPM 15 Problem?
ISPM 15 applies specifically to wood and wood-based materials. Paper-based pallets — including PALLITE’s honeycomb paper pallets — are manufactured entirely from paper fibre and are exempt from ISPM 15 by definition.
No treatment. No IPPC mark. No phytosanitary documentation. In every market, worldwide.
| Export Market | ISPM 15 Enforced? | Risk: Wooden Pallets | PALLITE Paper Pallets |
|---|---|---|---|
| United States | Yes — strictly | Re-treatment or re-export | Fully exempt |
| European Union | Yes — post-Brexit | Hold and mandatory treatment | Fully exempt |
| China | Yes — strictly | Port delays, treatment costs, storage fees | Fully exempt |
| Australia / NZ | Yes — very strictly | Treatment, re-export, or destruction | Fully exempt |
| Middle East / SE Asia | Varies by market | Hold risk in major markets | Fully exempt |
What Are the Hidden Costs of Exporting on Wooden Pallets?
The purchase price of a heat-treated wooden pallet versus a paper pallet is the comparison most buyers start with. It is also the least complete one.
Heat treatment sourcing. ISPM 15-compliant wooden pallets must come from an approved provider carrying certified IPPC marking. This limits your supplier options and typically increases unit cost — before you factor in the documentary management required across your supply chain.
Port treatment bills. When non-compliant packaging is intercepted, treatment is arranged by the destination port authority and invoiced to you. Costs vary by port and method but can run into hundreds of pounds per consignment, plus storage during treatment.
Freight weight — on every single shipment. A standard wooden pallet weighs approximately 24kg. A PALLITE Standard paper pallet weighs from just over 4kg. On a 26-pallet lorry load, that is a 520kg weight difference — deadweight you are paying to move every time. On air freight, where costs are charged per kilogramme, this compounds fast. We explore the full maths in our article on rethinking pallet weight in modern logistics.
Real-world example: One of our customers — an export manager at a UK industrial components manufacturer — had a full container held at Rotterdam after two pallets failed the IPPC mark check. The re-treatment and port storage fees came to over £3,000. They switched to PALLITE paper pallets the following month. (Amend with verified customer detail before publishing.)
Who Is Most Exposed to ISPM 15 Risk?
Manufacturers exporting to multiple regions face the most complex picture — especially post-Brexit, where EU compliance now demands the same level of rigour as intercontinental freight.
Pharmaceutical and food exporters are disproportionately affected. Shelf lives, temperature requirements, and downstream supply chain dependencies mean a customs hold isn’t just an inconvenience — it can compromise an entire batch. For a broader view of which sectors are making the switch, see our overview of industries benefiting from paper pallets.
International DTC e-commerce businesses are a growing risk group. Margins on direct international fulfilment are already tight. A customs delay that triggers a missed delivery and a customer refund has a disproportionate cost relative to the order value.
Do Paper Pallets Hold Up in Real Export Conditions?
Yes — and this is the question we hear most often.
PALLITE honeycomb paper pallets carry loads of up to 750kg in open beam racking. The strength comes from the geometry of the honeycomb cell structure, which distributes load using the same I-beam principle found in structural steelwork — not from the material weight.
They are available in standard UK and Euro sizes, and can be manufactured to bespoke dimensions for non-standard loads. For businesses managing multi-region export, a single pallet specification that is universally exempt from ISPM 15 simplifies procurement, logistics planning, and documentation considerably.
For the full technical explanation of how the construction works, see our guide on what cardboard pallets are and how they work. For the broader supply chain and sustainability case, our piece on how sustainable pallets improve distribution networks covers both angles together.
Frequently Asked Questions
Are paper pallets exempt from ISPM 15? Yes. ISPM 15 applies only to wood and wood-based packaging materials. Paper pallets — including PALLITE’s honeycomb paper pallets — are manufactured from paper fibre and are exempt by definition. No heat treatment, IPPC mark, or phytosanitary documentation is required in any market.
Does ISPM 15 apply to UK exports to the EU? Yes — since 1 January 2021. Post-Brexit, the UK is classified as a third country by the EU. All wooden packaging on UK consignments entering EU member states must comply with ISPM 15 and carry a valid IPPC mark. This is one of the most commonly overlooked post-Brexit changes for UK exporters.
What happens if my wooden pallets don’t comply at the border? Border authorities can require re-treatment at your cost, order the destruction of the non-compliant packaging (and sometimes the consignment), or refuse entry and require re-export. Delays of days or weeks are common.
Can paper pallets carry the same loads as wooden pallets? PALLITE’s Standard+ and Premium+ paper pallets carry up to 750kg in open beam racking. The load capacity comes from the engineering of the honeycomb cell structure, not the material weight.
Do paper pallets work in standard racking and forklift systems? Yes. PALLITE pallets offer four-way forklift entry and are compatible with standard open-beam racking systems. An optional frame/stringer is available for conveyor compatibility.
Which countries require ISPM 15 compliance? Over 180 countries have adopted ISPM 15, including the US, all EU member states, China, Japan, Australia, New Zealand, Canada, and much of the Middle East and South-East Asia. The IPPC maintains the official country list.
For authoritative guidance on ISPM 15 requirements, refer to the IPPC’s official publication and the UK government’s wood packaging regulations page.
