Certificate of Origin for Hardwood Lumber: Non-Preferential Certificates and Tariff Preference Proofs

Three different questions get called “origin” in a lumber order. Where do customs treat the goods as coming from? Does the buyer qualify for a lower duty under a trade agreement? Where did the trees stand? Each has its own document, and a certificate of origin answers only the first.

Document	Question it answers	Who issues or makes it	Used for
Certificate of origin (non-preferential)	Which country are the goods treated as coming from	Chamber of commerce	Customs, letters of credit, buyer requirement, trade measures
Preferential origin proof (EUR.1, statement on origin, USMCA certification)	Do the goods qualify for a duty preference under an agreement	Customs, registered exporter or the importer, exporter or producer, depending on the agreement	Claiming a lower or zero duty
Lacey Act declaration	Country of harvest, species, value, quantity	The importer or its broker	US import filing
CITES permit	Country of export and, where required, origin for listed species	CITES authorities	Listed species only

This page is general information as of October 2026. Origin rules and forms differ by agreement and change. Confirm with your customs broker and the importing authority.

The non-preferential certificate

A non-preferential certificate of origin states the country of origin of the goods in a shipment. The ICC World Chambers Federation says certificates of origin authenticate the origin of exported goods, helping customs, banks and businesses determine tariffs, trade measures and compliance, and that they are issued by chambers of commerce. Chambers that join the ICC accreditation chain apply ICC guidelines and may show a quality label on their certificates. A verification platform for chain members helps customs and chambers check certificates.

A certificate of this kind does not lower the duty. It is a statement of origin used for customs files, marking, quotas or trade measures, or because a letter of credit or a buyer asks for it. For hardwood, the shipment is usually sawn wood under HS heading 4407, or continuously shaped wood such as flooring strips under 4409. The certificate describes the goods and the origin, signed and stamped by the chamber. It has no connection to the quality of the lumber.

Some importing countries ask for their own format or for legalization of the certificate. Confirm the destination requirement before you ship.

Preferential proofs

A preferential origin proof is a different thing. The importer uses it to claim a duty preference under a trade agreement. The goods must meet the agreement’s rules: the European Commission describes the general conditions as products wholly obtained or sufficiently worked or processed, with rules on tolerance, cumulation, insufficient operations, direct transport and non-manipulation. The agreement says which proof it accepts.

• EUR.1 or similar movement certificates are issued by the exporting country’s customs, in agreements that call for an official certificate.
• Statement on origin is made by the exporter on an invoice or another commercial document. In the EU system this is linked to REX registration. The European Commission’s guidance says an EU exporter must be registered in REX and indicate the REX number for consignments above a value threshold, and that below the threshold any exporter may make the statement. The threshold and rules are set in the legal text and the agreement, so confirm them with a broker.
• USMCA certification of origin. There is no prescribed format. It can be completed by the importer, exporter or producer. It must include the minimum data elements: certifier, exporter, producer and importer details, description and HS classification of the good, the origin criterion, an authorized signature and date and a certification statement, plus the blanket period if used. It can cover multiple shipments of identical goods for up to 12 months, and the importer must have it when the claim is made.

For a lumber exporter, the practical step is to ask the buyer’s broker whether any preference is being claimed. If it is, ask which proof the agreement accepts and which entries and statements have to appear on the commercial invoice.

Harvest country is a different field

Customs origin follows origin rules, which usually look at where the goods were wholly obtained or last substantially transformed. The Lacey Act declaration asks for the country where the plant was harvested. For a mill that buys logs from another country, the two can differ. A certificate that says “origin: country of the mill” does not remove the need to list the country of harvest on the Lacey declaration. Our page on the Lacey Act declaration explains the four fields.

The same is true of species identity. A certificate of origin does not name the species. Keep the botanical name on the invoice and the tally. Our page on EN 13556 timber names shows how trade names, codes and botanical names fit together.

Tariff measures depend on origin too. Our guide to the Section 232 lumber tariff and the guide to the US hardwood export China tariff explain two cases where the country on the paper changes the duty. Check the current text before relying on any figure.

Where the certificate sits in the document set

The certificate belongs to the set that an importer assembles. Our page on the hardwood lumber import documents checklist lists the full set: invoice, tally, transport document, plant health, origin, legality data and the drying record. Check each document against the others before the shipment leaves.

Common errors

Error	Result	Fix
Goods description differs from the invoice	Customs query, delay	Copy description and HS heading from the invoice
Exporter name differs from the seller on the invoice	Rejection by the chamber or customs	Use the legal name on both
Origin stated as “Made in” the port country	Wrong origin, possible duty issue	State the country customs will treat as origin, after checking with the broker
Certificate issued after shipment without a note	Customs may refuse it	Apply before the shipment leaves
Species missing or only a trade name	Cannot be tied to the Lacey or CITES papers	Botanical name on every line
Preference proof used where the agreement does not allow it	Preference refused	Confirm the proof type with the broker
Certificate unstamped or unsigned	Rejected	Check stamp, signature and date before dispatch

What a supplier can prepare

A mill that exports regularly can keep a one-page origin note per lot: species, harvest country, sawing country, invoice number and HS heading. With that note, the commercial invoice, the tally and a chamber application can be filled from the same data.

What a mill can say about itself

Hardwood Vendor does not issue certificates of origin or preference proofs, and does not advise on origin rules. Ask your customs broker or the chamber of commerce which document and wording apply to your route.

What to write on the RFQ

• Whether a non-preferential certificate of origin is required and who pays for it.
• Whether a preference is claimed and which agreement, so the supplier prepares the right proof.
• Country of harvest and country of sawing, listed separately.
• Botanical name on every invoice and tally line.
• Timing: the certificate applied for before the lumber ships, with the original sent with the documents.

Send your lumber RFQ with the origin documents you need, and we pass it to up to 3 mills or yards that say they can issue them.

RFQ line: Red oak (Quercus rubra group), No.1 Common, 4/4 rough, KD 6-8%, chamber of commerce certificate of origin with original stamp, country of harvest and country of sawing listed on invoice, botanical name on every line.