In Part 1, we looked at the changing USMCA landscape and why businesses need to take a closer look at rules of origin, Chinese-origin inputs, transshipment, and the difference between being “assembled in Mexico” and actually qualifying for USMCA treatment.
Now let’s talk about another uncomfortable reality:
USMCA eligibility does not automatically make every tariff problem disappear.
In fact, tariffs, origin requirements, enforcement, and documentation are increasingly connected.
Tariffs Add Another Layer of Complexity
The USMCA conversation is taking place against a backdrop of significant U.S. tariff actions involving Canada, Mexico, China, and various categories of goods.
That creates an important distinction for importers:
USMCA eligibility does not automatically mean every import is insulated from every tariff measure.
Companies need to evaluate the specific tariff treatment applicable to their products, including additional measures that may apply outside the normal USMCA preferential framework.
This is particularly important for sectors such as automobiles, steel, aluminum, and other products affected by trade actions.
In other words, having a USMCA certificate, or properly documenting qualification, is not a magic force field against every tariff.
Sadly, Customs does not issue those.
The Cost of Chinese Content Is More Than the Purchase Price
For years, companies have optimized supply chains around cost.
Now they increasingly have to optimize around:
Tariffs. Origin. Geopolitical risk. Enforcement. Documentation.
That changes the calculation.
A component sourced from China may look inexpensive on a purchase order. But companies also need to consider:
- Potential tariffs
- Additional duties
- Customs exposure
- Origin verification
- Supply-chain disruption
- Compliance costs
- Transportation considerations
The cheapest supplier on paper isn’t necessarily the cheapest supplier after the customs department has finished doing the math.
Mexico can play an important role in creating more resilient North American manufacturing and sourcing alternatives.
But simply moving the final assembly step to Mexico while keeping most of the value and manufacturing activity in China may not accomplish what a company thinks it accomplishes.
The real question is:
Where is value created, and are the applicable rules satisfied?
Expect More Scrutiny of the Supply Chain Behind the Certificate
One of the biggest changes businesses should anticipate is greater attention to the information supporting origin claims.
A certification of origin isn’t simply a ceremonial document that gets attached to an entry and forgotten.
USMCA’s origin procedures allow customs authorities to verify whether goods actually qualify.
Companies should therefore be prepared to substantiate their claims with information such as:
- Bills of materials
- Supplier declarations
- Manufacturing records
- Production processes
- Tariff classifications
- Regional value-content calculations
- Purchase records
- Cost information
- Shipping documentation
- Country-of-origin information for components
- Records demonstrating where substantial processing occurred
In other words:
The certificate is the beginning of the conversation, not necessarily the end.
And if Customs asks questions six months or several years later, “our supplier told us it qualified” may not be the strongest compliance strategy.
The Supply Chain Behind the Certificate Matters
Consider what can happen when a company purchases a finished product from a supplier in Mexico.
The invoice may say Mexico.
The shipment may depart from Mexico.
The product may be assembled in Mexico.
But what about the components?
Where were they manufactured?
Where did the raw materials originate?
What processing actually occurred in Mexico?
What is the tariff classification of the product before and after processing?
How much North American value was actually added?
These questions can become critical when determining whether the finished product meets the applicable USMCA rule.
The supply chain behind the certificate matters.
Mexico and Canada Matter — A Lot
It can be tempting to think of USMCA as primarily a U.S. trade policy issue.
For American businesses, that would be a mistake.
Canada and Mexico are deeply integrated into U.S. manufacturing and supply chains.
Companies in industries ranging from automotive and agriculture to food, energy, electronics, medical devices, and consumer products depend on cross-border trade.
The United States, Mexico, and Canada will each have a role in determining what the next version of North American trade looks like.
Businesses therefore need to watch developments across all three countries, not just Washington.
What Could the Future of USMCA Look Like?
No one can predict exactly where the negotiations will land, but businesses can prepare for several possibilities.
Scenario One: USMCA Gets Strengthened
The three countries could ultimately agree to extend and modify the agreement.
That could produce a stronger North American trade framework with tighter rules of origin, stronger enforcement, and additional protections against non-North American inputs.
For businesses that already have regional supply chains, this could create opportunities.
Scenario Two: USMCA Becomes More Complicated
The agreement could remain in place while governments negotiate changes over an extended period.
This may be the most frustrating scenario for businesses because uncertainty becomes part of the operating environment.
Companies could continue receiving USMCA benefits while simultaneously planning for changes to:
- Tariffs
- Rules of origin
- Certification requirements
- Automotive content
- Supplier requirements
- Customs procedures
It’s difficult to make a five-year supply-chain investment when the rulebook is being edited with a pencil that apparently has no eraser.
Scenario Three: A Major Restructuring
The negotiations could result in a substantially different North American trade framework.
That could create significant opportunities for companies prepared to adjust their supply chains, but significant costs for companies that have built their business models around the current rules.
The important point is this:
Businesses do not need to predict exactly which scenario will occur.
They need to prepare for the possibility that the rules will change.
The Real Risk Is Uncertainty
Trade compliance professionals are accustomed to dealing with rules.
What becomes difficult is planning around rules that may change.
A business may be considering:
- A new manufacturing facility
- A supplier change
- A long-term purchasing agreement
- A new distribution model
- A major capital investment
- A relocation of production
Those decisions can last for years.
If the rules governing origin, tariffs, or preferential treatment change during that period, the economics of the entire project can change.
That’s why businesses should be building flexibility into their supply chains rather than betting everything on one outcome.
The Bottom Line for Part 2
The future of USMCA is not simply a question of whether the agreement continues.
It is a question of how the rules may change and how prepared businesses are to adapt.
Companies should expect continued attention to:
Tariffs.
Rules of origin.
Chinese-origin inputs.
Documentation.
Supply-chain transparency.
Verification.
The Question Isn’t Whether the Rules Will Change. It’s Whether You’re Ready When They Do.
The future of USMCA may still be taking shape, but the risks facing importers and manufacturers are already here.
Tariffs can change the economics of your supply chain. Rules of origin can determine whether your products receive preferential treatment. Chinese-origin inputs can create additional exposure. And when Customs asks you to substantiate an origin claim, a certificate alone may not be enough.
The real question is: How prepared is your company to prove what it claims — and adapt if the rules change?
Now is the time to move beyond simply monitoring the USMCA negotiations.
Look at the supply chain behind your products. Review your tariff exposure. Examine the documentation supporting your USMCA claims. Talk to your suppliers. Identify where your risk is concentrated.
Because waiting for the final rulebook could leave you trying to make strategic decisions after the costs have already arrived.
Export Solutions can help you evaluate your USMCA exposure and identify where your supply chain may need greater visibility, documentation, or flexibility. Contact us today to schedule a no-charge consultation.
But understanding your exposure is only the first step.
In Part 3, we’ll turn that knowledge into action. We’ll walk through the practical steps businesses can take now, from mapping the entire supply chain and identifying Chinese-origin content to reviewing USMCA qualifications, documenting transformation, calculating tariff exposure, preparing for Customs verification, and building a contingency plan.
The future of USMCA may be uncertain. Your preparation doesn’t have to be.
Stay ahead of the changes. Know your exposure. Be ready for what’s next.
Catch up on the series: Read Part 1: China, Rules of Origin, and What “North American” Really Means.
Shawna Karajic is a Senior Consultant for Export Solutions -- a full-service consulting firm specializing in U.S. import and export regulations.