TRADE AGREEMENTS | 2026-09-27

USMCA Rules of Origin: How California Importers Qualify for Duty-Free Treatment

Duty-free treatment under the USMCA is not automatic — your goods must originate, you must be able to certify it, and CBP can verify it. Here is how the rules of origin work.

The USMCA lets qualifying goods enter duty-free, but only if they meet the agreement’s rules of origin and you can certify origin with the required information. CBP can verify your claim after the fact, and an unsupported claim can mean back duties and penalties.

“Made in North America” is not the test. USMCA duty-free treatment turns on technical rules of origin, on your ability to certify origin, and on surviving a CBP verification.

How Goods “Originate” Under the USMCA

A good generally qualifies if it meets one of these tests:

  • Wholly obtained or produced entirely in the USMCA region (for example, minerals extracted or crops grown there).
  • Tariff shift — non-originating materials are transformed enough that the finished good is classified under a different tariff heading/subheading, as specified in the product-specific rules.
  • Regional value content (RVC) — a required percentage of the good’s value comes from the region, calculated by the transaction-value or net-cost method.

Certain sectors — notably automotive — have specialized and stricter rules, including higher RVC thresholds and labor value content requirements.

Certifying Origin

The USMCA does not require a specific government form. Instead, a valid certification of origin must contain the required data elements (identifying the certifier, exporter, producer, importer, the goods, the origin criterion, and a blanket period if applicable) and be signed and dated. The certification may be completed by the importer, exporter, or producer, and the importer relying on it must be able to support the claim.

CBP Verification — Be Ready to Prove It

CBP can verify a USMCA claim through questionnaires, requests for records, or visits. If the importer cannot support origin, CBP may deny preferential treatment and assess the ordinary duties, plus interest and potentially penalties. That is why importers keep the certification and the underlying origin records (bills of materials, supplier statements, cost data) for the required retention period.

Why Origin Compliance Matters

Rules of origin are among the most audited areas of customs compliance. A disciplined origin program — correct classification of inputs, documented RVC or tariff-shift analysis, and defensible certifications — is what turns a duty-free claim into one that survives verification.

Frequently Asked Questions

Is USMCA duty-free treatment automatic?

No — the goods must meet the rules of origin and you must certify (and be able to prove) origin.

Is there a USMCA form?

No specific form is required, but the certification must contain the required data elements and be signed.

What are the ways a good can qualify?

Wholly obtained, a qualifying tariff shift, or meeting a regional value content threshold; some sectors (like autos) have special rules.

What if CBP verifies and I can’t prove origin?

CBP can deny the preference and assess duties, interest, and possibly penalties.

Related Customs & Trade Guides

Talk to a USMCA and Trade Agreements Attorney

If you claim USMCA treatment or face a CBP origin verification, the documentation is the case. Trembach Law Firm helps California importers qualify for and defend USMCA and other trade-preference claims. Call (818) 514-7680.

Contact Trembach Law Firm at (818) 514-7680 for a confidential consultation.

Trembach Law Firm | 27001 Agoura Road, Suite 350, Calabasas, CA 91301