ISPM 15 Checks for Undercarriage Parts Shipments

A plywood-sided crate can look straightforward until you inspect its base, battens and loose blocking. The panels may be processed wood, while the framing or skid is raw solid wood. Those components do not automatically share the same status under ISPM 15. For an international shipment of undercarriage parts, the useful check is therefore component by component: identify the actual material, connect regulated wood to a readable mark and provider record, then confirm the importing country’s current requirements.

This is a pre-shipment evidence method, not a certificate or border-clearance decision. ISPM 15 sets internationally recognized phytosanitary measures for wood packaging made from raw wood, but national authorities implement and inspect those measures. A supplier statement, a plywood panel or a mark on one pallet should never be treated as proof for every piece of wood in the shipment.

Identify every wood component in the shipment

Begin with the physical package, before deciding whether an exemption applies. Give each package a stable identifier, such as “crate 1 of 3,” and list every component that supports, contains, braces or separates the parts. For heavy undercarriage components, that may include side and lid panels, corner posts, battens, a pallet or skid base, packing blocks and dunnage placed between individual items.

Pallets, crates and dunnage

The official scope is broader than a conventional pallet. The International Plant Protection Convention’s ISPM 15 page describes packaging made from raw wood and includes dunnage. Australia’s Department of Agriculture, Fisheries and Forestry guidance lists examples such as pallets, crating, packing blocks, cases, load boards, pallet collars and skids. A small brace added to prevent a roller from moving can therefore matter just as much as the main crate.

Do not group pieces merely because they arrived together. A crate and the pallet beneath it may come from different providers. Loose dunnage may be added at a warehouse after the crate was built. Record where each piece sits and whether it is permanently part of the package, removable support or later-added material. That location record lets a reviewer match a mark or provider document to the wood it is supposed to cover.

Processed panels versus raw wood

Write down the actual material rather than the visual impression. Plywood, particle board, oriented strand board and veneer can qualify as processed-wood materials when made using glue, heat or pressure, or a combination of those processes. Solid-sawn battens, blocks and skids require their own classification. If the purchase document says only “wooden crate,” ask for a component-level description or leave the material as unknown.

A common mixed package is a plywood box fixed to solid-wood framing on a solid-wood skid. The plywood description cannot be extended to the battens or base. Likewise, a marked pallet below a crate does not identify loose blocking inside it.

Check whether the standard applies

ISPM 15 addresses wood packaging material that may carry quarantine pests in international trade. It applies to raw wood packaging, including wood used around cargo that would not itself usually receive a phytosanitary inspection. The question is not whether the undercarriage part is made of metal; it is whether the wood used to support or protect that cargo falls within the standard’s scope.

Material exemptions

The standard exempts packaging made entirely from thin wood that is 6 mm or less in thickness. It also exempts packaging made wholly from processed wood such as plywood, particle board, oriented strand board or veneer created using glue, heat or pressure. “Entirely” and “wholly” are the controlling ideas. A package does not become exempt simply because its largest visible surfaces are plywood.

Apply the scope test to each line in the component inventory:

• If the component is confirmed qualifying processed wood, record the material evidence and the exemption basis.
• If it is confirmed raw solid wood, keep it in the regulated-wood evidence path.
• If it is thin wood, record the measured thickness and whether the package is made entirely from material meeting that condition.
• If the material, construction or thickness is unknown, mark it unresolved. Do not convert uncertainty into an exemption.

These are scope checks, not treatment instructions. They also do not decide whether a destination has alternative measures or additional documentary requirements.

Mixed-material packaging

For a mixed-material crate, separate the exempt and potentially regulated portions. Suppose the side panels are documented plywood, but the base consists of solid-sawn runners and blocks. The panels may meet the processed-wood exemption while the base still needs evidence appropriate to raw wood packaging. If the supplier cannot identify the battens, their status remains open even when the panel specification is clear.

Then check the route. The importing country’s plant-protection or biosecurity authority controls the destination implementation. Australia, for example, incorporates ISPM 15 into its import conditions for solid-wood packaging and also publishes its own biosecurity requirements. The United States provides current import guidance through USDA APHIS. These are destination examples, not global substitutes. For another destination, use that authority’s current source and record the page and access date.

Read the mark and verify the provider

The internationally recognized mark is a traceability device applied under national plant protection organization oversight. Read it; do not recreate it. A usable record connects the visible mark to the actual regulated component and to provider evidence. A detached photograph of a mark, with no package context, leaves that connection uncertain.

Country and facility identifiers

The mark includes the registered IPPC symbol, a two-letter country code and a producer or treatment-provider code assigned under the relevant national system. Photograph the complete mark closely enough to read its fields, then take a wider view that shows where it is applied. Record the crate or pallet ID, the marked face and the wood component visible in the wider frame.

Compare the readable identifier with the supplier’s provider information. If the paperwork names a different provider, do not choose whichever record looks more convenient. Log the conflict and send it to the responsible supplier or packaging contact for resolution. Similarly, if the mark is on a removable pallet but the crate framing is unmarked and separately sourced, keep the framing open.

Treatment code

The mark also contains a treatment abbreviation. Official sources explain codes associated with approved measures; the code must be read as part of the complete mark and checked against the current standard. It is not an instruction for a buyer to perform or authorize treatment, and it does not prove that every wooden item sharing the shipment received that treatment.

Legibility matters because the purpose is traceability. Record partial, obscured or damaged fields exactly as seen rather than guessing missing characters. Ask the authorized provider or relevant authority to resolve an unreadable mark. Do not overprint, touch up or add a replacement mark yourself.

Inspect more than the mark

ISPM 15 measures reduce pest risk at treatment, but they do not provide permanent protection against later infestation. The packaging condition and its history still matter. Inspect the wood for bark outside the applicable tolerance, live insects, exit holes, tunnels, frass-like material or other visible signs that should be escalated to the relevant authority or responsible provider. Do not clean away suspected evidence before it is assessed.

Pests, bark and altered packaging

Ask whether the marked unit has been reused, repaired or remanufactured. The standard has specific provisions for those states because replaced or added wood can break the original evidence chain. A new brace, block or plank added after treatment cannot inherit the status of neighboring marked wood. Record the added piece, its source and any mark or provider evidence of its own.

Alteration is broader than visible damage. A repaired skid, rebuilt crate wall or collection of components assembled from different marked units may require a different review under the current standard. If the package history is unavailable, mark it unresolved rather than calling it unchanged.

Destination requirements

Before dispatch, record the destination country, transit countries when relevant, the authority source consulted and the access date. Check current import conditions for the actual route and package type. A rule published by one country should not be generalized to another, and a historic supplier practice is not a substitute for the current destination source.

Keep the release decision with the responsible shipping, compliance or authority contact. The package record supports that decision; it does not guarantee acceptance at the border. Where the official source is unclear or the component evidence conflicts, stop the affected package from being treated as cleared until the named owner resolves the issue.

Keep a pre-shipment evidence record

The most useful record is compact enough to maintain and detailed enough for another person to reproduce the check. Use one row per distinct component or material group only when the group truly shares the same source, construction and evidence. Link photographs by filename or record reference, and retain both the close mark view and the wider package-location view.

Package/component	Material and scope	Mark and provider evidence	Destination and condition	Status and owner
Crate 1, plywood side panels	Plywood confirmed by component specification; processed-material exemption recorded	Not relied on for this exempt component	Authority source and access date recorded; panels unchanged	Documented, subject to destination review
Crate 1, solid-wood skid runners	Raw solid wood; within the regulated evidence path	Readable mark photographed in close and wide views; provider identifier matched	No visible alteration or pest evidence; destination source recorded	Evidence complete for responsible reviewer
Crate 1, internal blocking	Material unknown	No component-linked mark or provider record	Condition photographed; destination check cannot close material gap	Unresolved — supplier owns material identification
Pallet 2, replaced brace	Solid wood added after the documented package was produced	Brace has no linked evidence; existing mark identifies a different provider package	Alteration recorded	Conflict — packaging/compliance owner must resolve

Add the supplier reference, provider evidence, destination page URL and access date beside the row rather than storing them in an unrelated email. State the open question and the person responsible for closing it. “Material confirmation requested from supplier” is useful; “probably compliant” is not.

When order-specific details are needed, you can send the package material and destination with the order enquiry. Include the order or part identifiers and the unresolved packaging question. The final compliance and shipment-release decision should remain tied to current official requirements and the responsible parties for the route.