What ISPM 15 Actually Is
ISPM 15 — the International Standards for Phytosanitary Measures No. 15 — is a global standard developed by the International Plant Protection Convention (IPPC) that governs the treatment of wooden packaging materials used in international trade. In plain terms: if your goods are packed on wooden pallets, in wooden crates, or secured with wooden dunnage, those materials must be treated and marked to ISPM 15 before they can cross most international borders.
The standard exists to prevent the spread of invasive insects and plant diseases that can travel undetected inside untreated wood. Bark beetles, pine wood nematodes, and dozens of other organisms have caused billions of dollars in agricultural and forestry damage after hitchhiking across borders in wooden packaging. ISPM 15 is the international response to that threat.
Why It Matters for Sri Lankan Exporters
Sri Lanka exports tea, apparel, rubber products, ceramics, and a wide range of manufactured goods — much of it packed on wooden pallets or in wooden crates. If those pallets are not ISPM 15 compliant, destination country customs authorities are legally entitled to refuse entry, fumigate the shipment at the exporter's expense, or destroy the packaging on arrival.
The practical cost of non-compliance is significant: delayed shipments, demurrage charges, fumigation fees, and — in some cases — the loss of the entire consignment. For exporters working on tight margins with time-sensitive contracts, these are risks that can be eliminated entirely by using ISPM 15 certified packaging.
What the Treatment Involves
ISPM 15 permits two approved treatment methods: heat treatment (HT) and methyl bromide fumigation (MB). Heat treatment is the globally preferred method — methyl bromide is being phased out under the Montreal Protocol and is already banned in many destination countries including the EU.
Heat treatment requires the entire cross-section of the wood to reach a core temperature of 56°C for a minimum of 30 continuous minutes. This temperature kills all life stages of regulated organisms including eggs, larvae, and adults. The treatment must be carried out by an IPPC-registered facility and verified with calibrated temperature probes at the core of the thickest piece in each batch.
- Core temperature of 56°C must be sustained for 30 continuous minutes
- Applies to all solid wood packaging material (SWPM) in the shipment
- Treatment must be performed by an IPPC-registered provider
- Wood must be marked with the official IPPC mark post-treatment
What the IPPC Mark Certifies
The IPPC mark — sometimes called the "wheat sheaf" symbol — is applied to every piece of treated wood packaging by the registered treatment provider. The mark includes the country code (LK for Sri Lanka), the unique registration number of the treatment facility, and the treatment method code (HT for heat treatment).
Customs authorities at destination ports are trained to look for this mark. An absent, incorrect, or counterfeit mark triggers the same response as untreated packaging. The mark is your documentation — it proves compliance without requiring additional paperwork at the point of inspection.
St. Xavier Timber is IPPC registered with the National Plant Quarantine Service (NPQS) of Sri Lanka. Every heat-treated consignment leaves our facility with the correct IPPC mark and a full treatment record document.
Common Mistakes Exporters Make
The most common mistake is assuming that pallets purchased locally are automatically ISPM 15 compliant. They are not — unless they were made from timber treated by an IPPC-registered facility and correctly marked. Buying unmarked pallets from a hardware shop or small workshop is a compliance risk.
The second mistake is treating ISPM 15 as a one-time formality rather than a per-shipment requirement. Each batch of pallets used in an export shipment must be treated. Reusing pallets that were treated for a previous shipment is generally acceptable only if the mark remains legible and the wood has not been modified.
How St. Xavier Timber Can Help
St. Xavier Timber is IPPC registered and has been providing heat treatment for wooden packaging since our pallet manufacturing division launched over two decades ago. We treat high volumes of pallet timber on a regular basis and issue the documentation exporters need for customs clearance.
Our sister company, CeyPall, manufactures ISPM 15 certified wooden pallets to order — made from St. Xavier treated timber and ready for export. Whether you need treatment for your own pallets or a supply of certified pallets, we can turn orders around quickly to meet your shipping schedule.