UFLPA Explained: Rebuttable Presumption and Compliance

When CBP detains a shipment under the UFLPA, the burden does not sit with the government to prove forced labor.

It sits with you to prove the absence of it, by clear and convincing evidence, while your cargo accrues storage charges at the port. According to DHS, CBP has denied entry to more than 24,300 shipments since the law took effect, valued at nearly $1 billion.

That reversal of proof sets this law apart from every other import control you manage, because it reaches through to supplier tiers you may never have mapped. A compliant direct vendor offers no protection if a raw material upstream traces back to the wrong region.

What Is the UFLPA?

The UFLPA, or Uyghur Forced Labor Prevention Act, is a US law that presumes any goods mined, produced, or manufactured wholly or in part in the Xinjiang Uyghur Autonomous Region (XUAR), or by a listed entity, are made with forced labor and prohibited from entry under 19 U.S.C. § 1307.

The UFLPA was signed into law on December 23, 2021 as Public Law 117-78 (135 Stat. 1525). According to CBP, the rebuttable presumption took effect on June 21, 2022.

Because the UFLPA text applies to goods produced wholly or in part in the XUAR, any one of the following brings an entire finished product within scope:

• A raw material sourced from the region at any tier.
• A single component incorporated into a larger assembly.
• An input supplied by a listed entity, wherever that entity sits.

Reading the UFLPA text closely matters, because that phrase does the work. Our guide to international trade compliance treats supplier mapping as a first-order task for the same reason.

What Is the UFLPA Rebuttable Presumption?

The rebuttable presumption means CBP assumes covered goods are made with forced labor and detains them on that basis. To secure release, you must either show the UFLPA does not apply to the shipment, or overcome the presumption with clear and convincing evidence that no forced labor was involved.

Importers often confuse the two routes:

• An applicability review argues the goods fall outside the law's scope
• An exception request accepts that the law applies and attempts to rebut it, a standard CBP calls elevated and one that produces low approval rates in practice.

The evidence CBP expects is granular. According to CBP, an importer must use due diligence in evaluating its supply chain and respond completely and substantively to requests for information. In practical terms, that means:

• Full supply chain tracing from the finished good back to raw material origin.
• Transaction records covering purchase orders, invoices, and payment for every tier.
• Production records showing where and by whom each input was made.
• Transport documentation proving the physical movement of goods between tiers.

Because CBP tests the paper trail rather than assurances, the documentation you hold before a detention decides the outcome after one. Our guide on bill of lading explains how the transport document fits that evidence package.

What Is the UFLPA Entity List?

The UFLPA Entity List is the register of companies that DHS, through the Forced Labor Enforcement Task Force, has determined to use forced labor or resources from Xinjiang. Goods produced by any listed entity face the rebuttable presumption regardless of where the shipment itself originates.

According to DHS, the FLETF added 43 companies effective August 3, 2026, bringing the UFLPA list to 187 entities, a 30% increase and the single largest expansion since enactment.

One detail in that expansion changes how you screen. Nineteen of the 43 new additions sit outside Xinjiang, in provinces such as Shandong, Jiangsu, and Henan.

Recent UFLPA news also clarifies a common misreading. On CATL UFLPA specifically:

• Contemporary Amperex Technology (CATL) is not on the UFLPA Entity List.
• Congressional letters in June 2024 urged the FLETF to add it; the task force listed alleged upstream suppliers instead.
• CATL does appear on a separate Department of Defense list, which carries different consequences.

Tracking UFLPA news therefore means checking which list a company actually sits on, which is why CATL UFLPA searches so often return the wrong conclusion.

How Does CBP Enforce the UFLPA?

CBP enforces the UFLPA at the port of entry by detaining shipments it identifies as within scope, then conducting applicability or exception reviews. It publishes enforcement statistics through a public dashboard and issues operational guidance setting out what importers must demonstrate.

CBP does not wait for a detention to put you on notice. It issues Known Importer Letters to companies that previously imported from locations or entities potentially in scope.

Instead, it weighs receipt of that letter when determining remedies in any later enforcement action. CTPAT participants face suspension or removal as an additional consequence.

Two resources deserve your attention:

• The UFLPA dashboard: the CBP UFLPA dashboard publishes shipment-level statistics on detentions and enforcement outcomes, updated from live CBP systems. Checking the CBP UFLPA dashboard by commodity shows which categories draw the most scrutiny.
• Operational guidance: CBP issued consolidated Forced Labor Enforcement Operational Guidance for Importers in June 2026, superseding its 2022 guidance. Anyone working from the older CBP UFLPA guidance is working from a superseded document, so check the date on any CBP UFLPA guidance you rely on.

The DHS UFLPA material explains why an entity was listed, while CBP's explains what happens at the port. Reviewing the DHS UFLPA resources alongside CBP's own material gives you both the listing rationale and the enforcement mechanics, which rarely appear in the same place.

How Do You Assess UFLPA Supply Chain Risk?

Assessing UFLPA supply chain risk means tracing every input back to its origin, not just verifying your direct supplier. Because the presumption attaches to any Xinjiang-linked input at any tier, exposure sits in the parts of the chain you contract with least directly.

Stage	Sectors in focus
Original priority sectors	Cotton, tomatoes, polysilicon
Added July 2024	Aluminium, seafood, polyvinyl chloride
Spanned by 2026 listings	Pharmaceuticals, gold, titanium, capacitors

No industry is structurally exempt, so treat the table as a scrutiny ranking rather than a scope limit.

The failure pattern repeats across detentions. Importers map tier one thoroughly, accept attestations for tier two, and hold nothing for tier three, where the raw material actually originates.

Since CBP tests the weakest link, that structure fails at detention. yTrade's trade data traces the counterparties behind your suppliers against real customs activity.

How Do You Comply With the UFLPA?

UFLPA compliance requires mapping your supply chain to raw material origin, screening every tier against the Entity List, collecting documentary evidence before each shipment moves, and rescreening regularly as the list expands. Supplier attestations alone do not satisfy CBP's evidentiary standard, because the agency tests records rather than assurances.

Build the programme in the order CBP will test it:

1. Map the chain to origin, identifying every entity that touches each input, not only your contracting supplier.
2. Screen all tiers against the current Entity List, then rescreen after each update, since additions take effect within days of announcement.
3. Collect evidence continuously, holding production, transaction, and transport records for each tier before a shipment moves.
4. Test high-risk inputs independently, using isotopic or DNA analysis where origin claims cannot be documented.

Importers frequently ask how to choose a lab for UFLPA compliance verification. Three criteria decide it:

• Accreditation to a recognised international standard.
• Commodity experience with your specific material, not testing in general.
• Reporting format that CBP can read alongside your documentary evidence.

Deciding how to choose a lab for UFLPA compliance verification comes down to those three tests. Laboratory results supplement a paper trail; they never replace one.

Screening cadence matters as much as screening depth, because a supplier cleared in June can be listed in August. For the errors that recur most often across import programmes, see our guide to common mistakes in trade compliance.

Conclusion

The UFLPA inverts the usual burden of proof, so CBP detains first and you prove the negative afterwards by clear and convincing evidence.

Three points decide most outcomes: the words "in part" pull distant tiers into scope, the Entity List now covers 187 companies with many outside Xinjiang, and only documentation gathered before shipment survives a detention.

Treat supply chain tracing as continuous rather than periodic, since additions take effect within days. Verified counterparty data from yTrade supports that work.

Frequently Asked Questions

When did the UFLPA take effect?

The UFLPA was signed into law on December 23, 2021 (Public Law 117-78), and CBP began enforcing the rebuttable presumption on June 21, 2022. The law operates through Section 307 of the Tariff Act of 1930, codified at 19 U.S.C. § 1307.

Who maintains the UFLPA Entity List?

The Forced Labor Enforcement Task Force maintains it, chaired by the Department of Homeland Security with the Office of the US Trade Representative and the Departments of Labor, State, Treasury, Justice, and Commerce. DHS publishes additions through Federal Register notices.

Does the UFLPA apply if my goods ship from outside China?

Yes. The presumption follows the input and the entity rather than the shipment route, so goods finished in a third country still fall within scope if any component traces to Xinjiang or a listed entity. Transshipment offers no exemption.

What happens after CBP detains a shipment?

CBP issues a Notice of Detention and you choose one of two routes: an applicability review arguing the UFLPA does not cover the goods, or an exception request rebutting the presumption with clear and convincing evidence. Storage costs accrue throughout the review.