30 10 月, 2026
Does a Steel Shipment Need a Fumigation Certificate?
For the steel itself, in most orders, no. Fumigation is a phytosanitary measure aimed at wood, and steel is inert: there is nothing in a coil or a bundle of pipe for a pest to live in. The requirement appears because steel travels on wood — dunnage, pallets, crates. Where that wood is ISPM 15 compliant and marked, the mark is the evidence and a separate certificate is normally not needed. Where a destination authority or a credit asks for one anyway, it is issued by the plant protection organisation of the exporting country.
What is actually being treated
| Wood in the shipment | Within ISPM 15? | What the buyer checks |
|---|---|---|
| Solid wood pallets, crates and dunnage | Yes | Legible mark on every unit, debarked wood |
| Plywood, OSB, particle board or veneer cases | No, processed wood is exempt | Nothing, but confirm no solid wood was added |
| Loose lumber used to brace cargo at the port | Yes | The usual gap: added after packing, often unmarked |
What the mark tells you
The mark is a rectangle divided by a vertical line: the IPPC symbol on one side, and on the other the two-letter country code, the registration code of the producer or treatment provider, and the treatment code. HT means heat treatment. MB means methyl bromide, which most markets have moved away from; heat treatment has been the default for ordinary applications for years. Older units may carry codes from schemes since withdrawn, still valid on a unit not altered since.
It is stamped into wood that must also be debarked, since bark can shelter pests from the treatment. Re-used units need no re-treatment unless repaired — at which point the mark is reapplied by a registered provider.
When a certificate is asked for on top of the mark
Some destinations still request a phytosanitary certificate covering the wood packaging, and some credits list one because the template did. The shipper applies for it to the national plant protection organisation of the exporting country, on the basis of the treatment record from whoever treated the wood.
The direction of precedence matters: the mark is the evidence, and a certificate is not a substitute. An unmarked pallet with a certificate attached is still an unmarked pallet at the inspection bay.
Where these shipments get held
The failures are almost always about wood added late or marked badly:
- Untreated dunnage added at the loading port after the packer finished.
- Repaired pallets whose mark was never renewed.
- Bark left on the timber, or a mark from a different batch.
The consequence is a hold rather than a fine. The container waits while the wood is inspected, and the options are on-arrival treatment, segregation or re-export — all landing on whoever owns the cargo then. That is the demurrage question by another route.
What to put on the purchase order
- Wood packaging ISPM 15 compliant and marked, with photographs of the marks filed with the loading photos.
- The type of wood, and whether loose lumber will brace the cargo.
- No untreated dunnage added at the port, and the destination named so the local rule can be checked before the goods sail.
Wood packaging rules differ by destination and are checked with each order; they are confirmed with the packing specification at request a quotation. Clearance is covered in customs clearance for steel imports.
Related reading
- Seaworthy packing for steel export
- Customs clearance for steel imports
- What a bill of lading does
- Who pays demurrage
Frequently asked questions
Does galvanized steel need fumigation?
No. The finish has nothing to do with it; the trigger is wood packaging. Steel needs no treatment of its own.
Is a fumigation certificate the same as an ISPM 15 mark?
No. The mark is stamped into the wood itself and is the evidence of treatment. A certificate is paper, and does not cure an unmarked pallet.
Who issues the certificate?
The national plant protection organisation of the exporting country, usually through an authorised agent, acting on the treatment record from the provider.
Send the specification, quantity and destination port and the offer follows from those three inputs. See the product catalogue or request a quotation.