USMCA Compliance Under Scrutiny: How We Help You Keep Duty Savings and Avoid Penalties

Picture this: you claim USMCA on a shipment, save a significant amount on IEEPA-related tariffs, then a thick envelope arrives from Customs and Border Protection. Inside is a CF-28 Request for Information or a CF-29 Notice of Action. Your savings are now under the microscope, and the clock is ticking.

The Shift From NAFTA to USMCA Changed the Stakes

NAFTA is gone, replaced by the United States-Mexico-Canada Agreement. It is known as USMCA in the U.S. and CUSMA in Canada. For years, claiming USMCA duty-free treatment felt straightforward. If your goods came from Canada or Mexico and some assembly occurred there, many companies simply accepted a supplier’s certification and moved on.

That world is changing. Because USMCA claims can offset billions in tariffs, including IEEPA tariffs, the government has refocused on revenue protection. When CBP believes they may be missing revenue, they ask why. We are seeing a sharp rise in CBP Form 28s and 29s as officers challenge USMCA eligibility and the underlying rules of origin.

Why USMCA Claims Are Under the Microscope

• Revenue protection is back at the forefront for CBP.
• The agency is testing whether products truly meet rules of origin and substantial transformation thresholds.
• If documentation is weak or inconsistent, CBP is assessing duties, interest, and penalties.

Our expert Jamie has seen a clear pattern. Companies that rely on a supplier’s USMCA certificate without validation are the ones getting burned.

Where Companies Get Into Trouble

• Treating a supplier’s certificate as a silver bullet
• Failing to validate bills of materials against tariff shift or RVC requirements
• Overlooking country of origin determinations when minor processing occurs in North America
• Weak or missing audit files that cannot withstand a CF-28 or CF-29 review

Put simply, if your claim rests on trust rather than proof, you are exposed.

What CBP Expects to See

When CBP issues a CF-28 or CF-29, they expect a robust evidentiary package that proves your USMCA claim. Typical requests include:

• Supplier certifications tied to specific SKUs and time periods
• Complete bills of materials and origin of each input
• Detailed manufacturing process narratives and flowcharts
• Evidence of substantial transformation or qualifying tariff shift
• Proof of payment, purchase orders, and invoices
• Photos or videos of the manufacturing process
• Internal controls and policies that govern claims and renewals

If you cannot produce this, penalties and duty bills are likely.

How Vigilant Global Trade Services Protects Your Position

We help you move from hopeful to audit-ready. Our core services are built to withstand scrutiny.

• Entry audits and mock CBP audits: We test your entries the way CBP will.
• Rules of origin validation: We verify that products meet USMCA requirements using actual BOMs and production data.
• Tariff classification and country of origin reviews: We correct misclassifications and origin calls that can derail claims.
• Supplier onboarding and document collection: We build repeatable processes for obtaining and maintaining the evidence CBP wants.
• Corrective actions and partner support: If we identify gaps outside our scope, we connect you to vetted specialists.

Our approach is practical and proactive. We assemble a defendable file before CBP ever asks.

Action Checklist: Make Your USMCA Claims Audit-Ready

• Validate, do not assume: Confirm supplier certifications with BOMs, process details, and input origins.
• Map rules of origin: Document how each product meets tariff shift or RVC thresholds.
• Build a master audit file: Keep certificates, BOMs, origin analyses, process descriptions, and supporting financials together by SKU.
• Refresh annually: Update certificates and validations for each calendar year and when suppliers or inputs change.
• Train your team: Ensure purchasing, logistics, and finance know what documentation must be captured and retained.
• Run a self-audit: Simulate a CF-28 using CBP’s expectations and close any gaps.

The Bottom Line

USMCA is still a powerful tool to reduce duty outlay, including exposure to IEEPA tariffs. The difference today is that CBP wants proof. With the right validations, documentation, and controls, you can protect hard-won savings and avoid unpleasant surprises.

Ready to turn risk into readiness? Contact Vigilant Global Trade Services to schedule a consultation. We will review your USMCA program, test your documentation against CF-28 and CF-29 standards, and help you build an audit-ready defense that keeps your savings intact.