UFLPA and transshipment risk: why “Made in Vietnam” is not an answer.

The short answer. UFLPA lets US Customs and Border Protection presume that goods made wholly or in part in Xinjiang, or by a company on the UFLPA Entity List, were made with forced labour. The presumption can reach a product made in Vietnam if any input further up the supply chain traces to Xinjiang or to a listed company. A Vietnamese certificate of origin does not answer it. The importer has to show by clear and convincing evidence that the goods are free of forced labour, usually by tracing every tier of the supply chain.

The presumption is the problem

UFLPA establishes a rebuttable presumption that goods made wholly or in part in the Xinjiang Uyghur Autonomous Region, or by an entity on the UFLPA Entity List, are made with forced labour and are barred from entry into the United States.

Two consequences follow:

• The burden sits with the importer. Customs and Border Protection does not have to prove forced labour. You have to prove its absence, by clear and convincing evidence, after the goods are already detained.
• It applies to inputs, not to final assembly. “Wholly or in part” reaches any tier of the supply chain. A product genuinely manufactured in Vietnam is still exposed if a component, a textile input, or a raw material further upstream traces to Xinjiang.

A Vietnamese certificate of origin answers a tariff question. It does not answer a UFLPA question. The two are easy to conflate, and the confusion is expensive.

The Entity List itself keeps growing. As of the Department of Homeland Security’s largest single expansion to date, it holds 187 entities. 43 added in one round, effective 3 August 2026. See the official Federal Register notice for the current list. An affiliation added after your last check is still exposure today.

Two different exposures

1. Transshipment and origin fraud

Goods manufactured elsewhere are routed through Vietnam, undergo minimal or cosmetic processing, and are exported as Vietnamese. This is straightforwardly unlawful, and the importer's defence is that it was deceived: a defence considerably stronger if the importer can show it verified the manufacturing facility rather than accepting paperwork.

2. Legitimate manufacture with upstream inputs

Entirely lawful in itself: a real Vietnamese factory incorporates components or materials of Chinese origin. Nothing improper has occurred. But if any of those inputs trace to Xinjiang or a listed entity, the presumption applies regardless.

The second scenario is the one that catches careful importers, because there is no wrongdoing to detect. Only a documentation chain that either exists or does not.

What CBP actually asks for

When a shipment is detained, the request is for complete supply chain tracing to the raw material. In practice that means, for every tier:

• Purchase orders, commercial invoices, and packing lists
• Bills of lading and transport documents
• Production records tying specific inputs to specific output lots
• Proof of payment
• Evidence identifying the entity at each tier, sufficient to check it against the Entity List

Note what is absent from that list: supplier declarations, certificates of compliance, and codes of conduct. These are relevant context, but on their own they do not discharge the burden. The evidence CBP wants is transactional and granular.

Why this has to be assembled before shipment

The practical trap is timing. Once a container is detained, you are attempting to obtain tier-three documentation from a supplier's supplier, in a foreign language, through an intermediary who has no incentive to help you quickly and may not hold the records at all. A detention can last for weeks or longer, and demurrage can build up throughout.

The same documents, requested during supplier onboarding when you have commercial leverage and no deadline, can be obtained. It is the same task at a fraction of the cost.

What to establish at the factory

For UFLPA purposes specifically, a site visit should establish:

1. Input origin by stream. Which materials are domestic, which are imported, from where, and through which intermediary. Ask to see import declarations, not summaries.
2. Undisclosed subcontracting. Work performed at a facility you have not identified is a supply chain tier you cannot document.
3. Ownership and affiliation. Entity List exposure can arise through a parent, a joint-venture partner, or a shareholder rather than the supplier itself.
4. Labour conditions on site. Recruitment practices, whether workers hold their own documents, whether wages match filings, and the presence of any transferred-labour programme.
5. Record-keeping capability. Whether the supplier can produce lot-level traceability at all. A supplier who cannot do it in calm conditions certainly cannot do it during a detention.

The relationship to EUDR

Buyers selling into both the EU and the US may treat these as two separate compliance programmes. They overlap substantially: both require tracing inputs upstream past the immediate supplier, both treat undisclosed subcontracting as a gap, and both place the burden on the importer rather than the producer. A verification scoped to cover both at once costs materially less than two sequential exercises.

Common questions

Does "Made in Vietnam" protect me from UFLPA? No. A certificate of origin answers a tariff question. UFLPA looks at the inputs: a product made in Vietnam is still exposed if a component or raw material further up the chain traces to Xinjiang or to a listed entity.

What does CBP ask for when a shipment is detained? Supply chain tracing to the raw material, for every tier: purchase orders, commercial invoices, packing lists, bills of lading, production records that tie inputs to output lots, proof of payment, and evidence that identifies each entity so it can be checked against the Entity List.

Who has to prove the goods are free of forced labour? The importer. CBP does not have to prove forced labour. You have to show its absence, by clear and convincing evidence.

How do I check a supplier against the Entity List? Search the supplier, its owners and its material suppliers on the DHS list, then trace the inputs. Our guide on screening a supplier against the UFLPA Entity List shows the steps.

Related

• How to screen a Vietnamese supplier against the UFLPA Entity List
• One evidence file for EUDR, UFLPA and the Lacey Act: what to collect once from a Vietnamese supplier
• What EUDR Article 9 requires from a Vietnamese supplier
• How to verify a Vietnamese manufacturer before your first order
• What a Lacey Act declaration requires for Vietnamese wood and furniture
• Red flags when sourcing timber and furniture from Vietnam

General information on US import compliance as it applies to Vietnamese sourcing, not legal advice. UFLPA enforcement practice develops continuously; take advice on your specific supply chain and check current CBP guidance.

Field Diligence verifies Vietnamese manufacturers against these requirements, on behalf of the buyer and paid only by the buyer. Fixed published price of USD 2,200, agreed before work begins. Start with a free scoping conversation, or see a sample report first.