US law lists the circumvention patterns Commerce examines: merchandise completed or assembled in the US from parts from the order country, merchandise completed or assembled in a third country, minor alterations to the merchandise, and later developed merchandise that shares the scope product's essential character. Each route has its own test, and each turns on evidence about process and value, not on what the shipper called the goods.
For third country completion, Commerce weighs whether the processing there is minor, the value added there against the total value, where the investment and production actually sit, and the pattern of trade since the order. A screwdriver plant that adds a small share of value to nearly finished goods from the order country is the textbook problem. A real factory with substantial transformation is a different case, and the difference is documented, not asserted.
Once Commerce initiates an inquiry, CBP can be directed to suspend liquidation of entries within the inquiry's scope and collect cash deposits at the order rate while the question is decided. That means an importer who bought third country goods in good faith can face deposit demands on live entries and uncertainty on past ones, long before any final finding. The commercial damage arrives early. The legal answer arrives on Commerce's schedule, which is measured in months and extensions.
Certification regimes sometimes follow, where importers must certify that goods are not circumventing, with documentation to back the certificate. Signing a certification you cannot support is worse than the duty. It converts a classification dispute into a false statement problem, and it is the point where importers need counsel, not a broker's reassurance.
Hold the third country producer's production records in reach before you need them: input sources by country, the process steps performed, labour and overhead value, and the share of total value added there. If your supplier cannot produce that file for a product anywhere near an existing order, you do not have a supply chain. You have a hope with a freight bill.
Map your catalogue against live AD and CVD orders by scope description, not just by HTS code. Orders are defined by their written scope, and a product can sit inside a scope under a code nobody flagged. Scope reviews at sourcing, repeated when a supplier moves production countries, are the cheapest circumvention defence that exists.
Changing the ship from country without changing the product's real production footprint is the fact pattern inquiries are built on. Legitimate diversification exists: real plants, real transformation, real value, documented. The test your sourcing team should apply is simple to say and hard to fake: if Commerce read our supplier's production file, would the third country work look like manufacturing or like a detour. Answer it honestly before CBP asks it formally.
Circumvention is a Commerce proceeding about whether goods fall within an order's scope despite a third country or alteration route. Evasion, investigated by CBP under the Enforce and Protect Act, is about material false statements or omissions on entry. The same facts can attract both.
Suspension of liquidation during an inquiry can leave past entries within its scope open, and an affirmative finding can result in duties on those entries. That retroactive exposure is why inquiry initiation is a finance event, not just a legal one.
Search orders by scope description for your product family and check with your broker at sourcing and whenever production moves country. HTS code alone is not a safe screen, because scope language controls.
Refuse the shortcut and document the decision. Then review whether the underlying product is in scope and what legitimate sourcing, a real production change or a different product, actually costs. A reroute offer is evidence the duty applies.