Stopping Gray Market and Counterfeit Imports: A Practical Guide

Summary. Build the program in the right order, and the legal tools start working.

Start with the right question

Brand owners ask "how do we stop these imports?" The useful question is "where are these goods coming from, and what makes them different from ours?"

Both answers determine everything. If the goods are counterfeit, an entire arsenal is available — seizure, forfeiture, civil penalties, statutory damages, criminal referral. If they are genuine goods in the wrong channel, exhaustion forecloses copyright and patent claims entirely, and the only workable theories are material differences under trademark law and contract against whoever diverted them.

And if the goods are genuine, they came from you. Somewhere in your authorized channel, someone sold a container to a buyer who was not going to sell it where they said they would. That person has a contract with you. Finding them is usually the whole solution.

PART ONE: BUILD THE FOUNDATION

Step 1 — Record your marks with Customs

This is the precondition for essentially all border enforcement, and a surprising number of brands have never done it.

• What to record: marks registered on the Principal Register, and registered copyrights, under 19 C.F.R. Part 133.
• Cost: a modest per-mark fee. Term: the life of the underlying registration, renewable.
• How: through the electronic recordation system. Include images of the mark as used, the goods covered, and authorized importers.
• Keep it current. Renew when the underlying registration renews, and update authorized importer lists when the channel changes.

Without recordation, Customs will not act. Everything below depends on this step.

Step 2 — Document the material differences

For gray market goods, this is the case. Genuine goods that are materially different from those authorized for United States sale are not "genuine" for trademark purposes, and the threshold is low: would a consumer likely consider the difference relevant to a purchasing decision?

Inventory what already differs. Most brands have differences and have never written them down:

Photograph everything, side by side. Authorized unit and foreign unit, with each difference labeled. This document becomes the Lever-rule petition, the marketplace complaint attachment, and a trial exhibit.

Create differences where it makes business sense. This is lawful and effective. A United States product with a United States warranty, English documentation, domestic service, and region-specific specification is materially different from the foreign version — which makes trademark law available where exhaustion would otherwise foreclose it. Many brands do this for independent reasons and gain the enforcement benefit as a byproduct.

Step 3 — File the Lever-rule petition

Recordation alone does not restrict genuine goods. To obtain restriction of physically and materially different foreign-made goods bearing your recorded mark — even where common control exists, following K Mart Corp. v. Cartier, Inc., 486 U.S. 281 (1988) — you must petition and document the differences.

The petition should include: the recorded mark; identification of the foreign-manufactured goods; a specific, itemized description of each material difference with supporting photographs and specifications; and an explanation of why each difference matters to purchasers.

Note the escape valve. Restricted goods may be released if labeled conspicuously as not authorized by the United States mark owner and as differing from authorized goods. Make the documented differences specific enough that such a label communicates something real.

Step 4 — Build the identification package

Customs officers examine enormous volumes and cannot identify unauthorized goods without help. The brands that get enforcement are the ones that make it easy.

Provide:

• A product identification guide: authorized versus unauthorized units photographed side by side, differences arrowed and labeled
• Code locations and formats, with examples of removed or altered codes
• Expected packaging and printing characteristics
• Authorized importers by name, with entry filer information where available
• Common ports and shipping patterns for legitimate goods
• A named technical contact with a direct telephone number, available during business hours

Offer training. Customs conducts product identification sessions with rights holders, and a brand that participates gets meaningfully better enforcement than one that files a form and waits.

Step 5 — Fix the codes

Every tracing investigation depends on being able to identify which shipment a unit came from.

• Serialize at the unit level where the economics permit; at the smallest practical lot otherwise.
• Place codes where removal is difficult and detectable — laser-etched rather than printed, under a component, or duplicated in two locations so removal of one is visible.
• Maintain the production-to-consignee database so a code resolves to a shipment, a distributor, and a date.
• Test the system. Buy a unit from an authorized channel and trace it end to end. If your own team cannot do it in an afternoon, an investigator will not do it at all.

Step 6 — Rewrite the distribution agreements

Exhaustion defeats infringement claims; it does not defeat contract claims. Impression Products, Inc. v. Lexmark International, Inc., 581 U.S. 360 (2017) is explicit that post-sale restrictions may be enforceable as contracts against those who agreed to them.

Include:

• Territorial and customer restrictions, within competition law limits in each market
• Prohibition on sales to unauthorized resellers and to buyers without an end-user business
• Flow-down obligations to sub-distributors, with the right to enforce directly
• Sell-through reporting identifying customers
• Audit rights with defined scope and cost-shifting on a finding of diversion
• Code preservation obligations, with removal as a material breach
• Liquidated damages and termination for cause on diversion
• Cooperation obligations in investigations

Then align the incentives. Compensation tied to verified sell-through rather than sell-in removes the structural reason a distributor sells a container to a trading company. This is the highest-leverage change available and the one most resisted internally.

PART TWO: THE INVESTIGATION

Step 7 — Test purchases

• Buy multiple units from the same seller, over time, using different names and addresses.
• Photograph the shipment before opening: outer packaging, labels, customs declarations, invoices.
• Record the seller, the platform, the price, the listing text, and the shipping origin.
• Preserve the units sealed where possible, with a documented chain of custody.
• Keep the receipts and payment records.

Step 8 — Forensic examination

Determine first whether the goods are counterfeit or genuine. The tools differ by an order of magnitude, and getting it wrong costs either the stronger remedies or credibility.

Examine code areas under ultraviolet light and magnification. Solvent-removed codes are frequently still readable, and a partially recovered code is often enough to identify the shipment.

Expect mixed shipments. Analyze at the unit level; a container may hold genuine units, counterfeit units, and genuine units with counterfeit packaging.

Step 9 — Trace and audit

• Resolve recovered codes to shipments, then to consignees.
• Identify the distributor or authorized reseller in the chain.
• Exercise the audit right. Examine sales records for buyers with no plausible end-user business, volumes inconsistent with the market, and shipping addresses in freight-forwarding hubs.
• Interview the distributor's personnel where the agreement permits.
• Document everything; the audit file supports termination and any subsequent claim.

This step is the program. Enforcement against resellers stops one seller. Cutting off supply stops the channel.

PART THREE: ENFORCEMENT CHANNELS

Step 10 — Border enforcement

• Ensure recordation and the Lever-rule petition are current.
• Provide targeting information: expected shipments, ports, importers of record, and shipping patterns.
• Respond quickly when Customs requests an authenticity or material-differences determination. Verify against production records before answering — a wrong answer creates exposure for wrongful detention.
• Track outcomes and feed them back into targeting.

For counterfeit goods, seizure and forfeiture follow, with civil penalties available under 19 U.S.C. § 1526(f) and 19 U.S.C. § 1595a, and mitigation under 19 U.S.C. § 1618.

Step 11 — Marketplace and platform enforcement

Online platforms maintain brand protection programs. They are fast, free, and often sufficient.

• Enroll in each major platform's brand registry.
• Submit the material-differences documentation, not just the trademark registration — platforms remove listings for counterfeit goods routinely and for materially different goods when shown why.
• Report systematically rather than ad hoc; platforms weight seller-level patterns.
• Track sellers across platforms; the same operator usually appears on several.

Step 12 — Demand letters and litigation

Demand letters to resellers work more often than expected, particularly when they identify the specific material differences and note the absence of any disclosure to buyers.

Litigation is worth it when the defendant has assets, when injunctive relief has strategic value, or when a judgment will deter a category of conduct. Claims: 15 U.S.C. § 1114 and 15 U.S.C. § 1125(a) premised on material differences; state unfair competition; and separately, contract claims against the diverting distributor in whatever forum the agreement specifies.

Do not expect exhaustion arguments to lose. For genuine goods without material differences, Kirtsaeng v. John Wiley & Sons, Inc., 568 U.S. 519 (2013) and Impression Products will defeat copyright and patent theories. Bring the case you have.

A worked program, built from nothing

Thornbury Audio makes studio monitors. Annual revenue $180 million; United States list price $1,900 a pair; European distributor price €780. Over eighteen months, its United States dealers report losing sales to online sellers offering "new, factory-sealed" units at $1,150.

Thornbury's VP of legal, Solomon Anagnos, is told to "make it stop." He has no program at all.

Days 1–10: the foundation nobody built

He discovers Thornbury has never recorded its marks with Customs. Three registrations, all current, none recorded. He records all three under 19 C.F.R. Part 133 in a week, at a cost measured in hundreds of dollars.

He also finds that Thornbury's product management team has been maintaining, for entirely unrelated engineering reasons, a document listing every difference between the North American and European models. It runs to two pages. It is, unknowingly, the beginning of the legal case.

Days 10–30: the differences

Working from that document, Solomon builds a proper material-differences package:

• Power supply: North American units ship with a 120V supply carrying a United States safety certification mark; European units ship with a 230V supply with no such mark.
• Warranty: three years in North America, two in Europe, and the North American warranty is void on units not purchased from an authorized dealer — a term Thornbury has always had and never enforced.
• Service: European units cannot be serviced by Thornbury's Nashville facility because the amplifier board differs.
• Documentation: English and Spanish in North America; six European languages elsewhere.
• Voicing: the crossover is tuned differently for the two markets, a difference audible to the professional purchasers who buy these products.
• Codes: a lot code printed on the rear panel.

He photographs authorized and European units side by side, arrows and labels each difference, and files a Lever-rule petition documenting all six.

The voicing difference is the strongest. For a studio monitor, tonal calibration is the product. A purchaser choosing between them would unquestionably consider it relevant.

Days 25–45: identification and test purchases

Solomon's team builds a four-page identification guide for Customs officers: photographs of both units, the location of the certification mark, the rear-panel code location and format, the power supply differences, and packaging print characteristics. He names a product engineer as the technical contact with a direct line.

Simultaneously, an investigator makes six test purchases from three sellers, using different names and addresses, photographing each shipment before opening.

Days 45–60: the forensics, and a surprise

All six units are genuine — correct build, valid serials, genuine firmware. This settles the analysis: no counterfeiting remedies, and under Kirtsaeng and Impression Products, no copyright or patent theory. The case is material differences and contract.

Four of the six have rear-panel codes removed with solvent. Under ultraviolet examination, three yield partial codes.

The surprise is the fifth unit. Its code is intact, and it traces not to Europe but to Thornbury's own Canadian subsidiary, which had been selling into a United States freight forwarder to hit a quarterly volume target. Nobody outside the channel had diverted anything; Thornbury had done it to itself.

Days 60–80: the audit

The three partial European codes resolve to a single Dutch distributor. Solomon exercises the audit right — which exists in the agreement, has never been used, and turns out to permit exactly this. The audit finds €2.1 million in sales over fourteen months to a Rotterdam trading company with no retail presence and no end users.

He terminates the distributor for cause and, in parallel, escalates the Canadian issue internally. The Canadian sales director's compensation plan pays on sell-in. That plan is changed.

Days 70–90: enforcement

• Platform complaints with the material-differences package attached. Two of three sellers' listings are removed within eleven days; the third modifies its listings to disclose the differences, which is a lawful outcome.
• Demand letters to the remaining sellers, identifying each material difference and the absence of disclosure to buyers under 15 U.S.C. § 1114 and 15 U.S.C. § 1125(a).
• Customs targeting information provided: expected shipment patterns, the Rotterdam trading company's name, and the ports involved.
• No litigation. The sellers were small, the supply was cut, and Solomon's recommendation to the board says so explicitly.

Month six

Gray market listings are down roughly 80%. The residual is a slow trickle from a Southeast Asian distributor that Thornbury identifies through a second code trace and handles the same way.

Total legal and investigative spend: about $215,000. A single lawsuit against one reseller would have cost more and stopped nothing.

What actually worked, in order of contribution:

1. The audit clause that already existed and had never been used
2. The rear-panel code that survived solvent removal
3. The voicing difference that made the goods materially different
4. The compensation plan change in Canada, which removed the internal source
5. The Customs recordation that cost a few hundred dollars and had never been done

What contributed nothing: the two patents Thornbury holds on the cabinet geometry, and the copyright in the firmware. Both were exhausted by the authorized foreign sales.

Working with Customs effectively

The difference between a brand that gets border enforcement and one that does not is almost entirely operational.

Be findable. Provide a named technical contact with a direct telephone number and an email address that is monitored during business hours. Officers making a detention decision have a limited window; a brand that responds in four hours gets enforcement, and one that responds in four days does not.

Answer the question asked. When Customs sends samples and asks whether goods are authentic and whether they are materially different, answer both, specifically, with reference to the recorded differences. "These are not authorized for sale in the United States" is not an answer to either question.

Verify before you answer. Check serials against production records. A brand that identifies authorized goods as unauthorized creates exposure for wrongful detention and burns credibility that takes years to rebuild.

Provide targeting intelligence. Expected legitimate shipments, importers of record, ports, and known diverters. Enforcement resources follow information.

Participate in training. Product identification sessions with officers produce more detentions than any filing.

Close the loop. Track what was detained, what was released, and why. Feed the pattern back into the identification materials. A guide that has been revised three times based on actual detentions is worth far more than the original.

Understand the limits. Customs is not a court and will not referee commercial disputes. For genuine goods without documented material differences, the goods clear, and no amount of correspondence changes that.

The first ninety days

Budget

The pattern worth noticing: the foundation costs less than one lawsuit and does more.

Mistakes that recur

Suing before recording marks with Customs. The cheapest tool is the one most often skipped.

Treating gray market goods as counterfeit. It overstates the case and invites a wrongful-seizure claim.

Treating counterfeit goods as gray market. It forfeits seizure, penalties, and statutory damages.

Filing a Lever-rule petition without documenting specific differences. Generic assertions produce no restriction.

Enforcing against resellers without cutting off supply. A new seller appears the following month.

Ignoring that the source is inside the channel. Genuine goods came from you.

Compensating distributors on sell-in. It funds the diversion you are litigating against.

Removing codes from your own goods for cosmetic reasons. It happens, and it destroys the tracing capability the entire program depends on.

Designing territorial restrictions without competition counsel in each market. Parallel-trade restrictions are treated very differently across jurisdictions.

Running the channel audit

The audit is where gray market programs succeed or fail, and most brands have the contractual right and have never exercised it.

Before you start. Confirm the audit clause: scope, notice period, who may conduct it, what records are covered, cost allocation, and confidentiality. If the clause is weak, negotiate an amendment at renewal rather than testing an inadequate one.

Give notice as the agreement requires — but give the minimum notice the agreement permits. Records get tidy.

What to examine:

Interview. Where the agreement permits, speak with the sales personnel who handled the relevant accounts. The commercial explanation is often given freely because the person does not understand it is a problem.

Document contemporaneously. The audit file supports termination, supports any damages claim, and — if the distributor sues over the termination — is the defense.

Decide the outcome deliberately. Termination is not always right. A large distributor that diverted through a single rogue salesperson may be more valuable reformed than replaced, and a negotiated resolution with liquidated damages, enhanced reporting, and a probation period preserves the relationship while making the point. What is never right is finding diversion and doing nothing; the channel notices, and the next distributor draws the obvious conclusion.

Communicate the outcome. Not the details, but the fact. A short note to the channel stating that a distributor was terminated for reselling outside its territory does more preventive work than any contract clause.

When the problem is internal

A significant share of gray market volume originates with the brand's own affiliates, and the pattern is consistent enough to look for specifically.

The mechanisms:

• Regional sales targets measured on sell-in, met at quarter-end by selling to a trading company.
• Transfer pricing that makes intercompany sales attractive to the selling entity regardless of destination.
• End-of-life inventory pushed into whatever channel will absorb it.
• Over-forecast production creating pressure to move goods at any price.
• Returns and refurbishment leaking into the gray channel without disclosure.

How to find it. Trace codes without assuming the answer. Brands that begin an investigation certain the source is a third party frequently find their own subsidiary in the chain and then struggle to act, because the finding implicates colleagues rather than adversaries.

How to fix it. These are governance problems with governance solutions: compensation on verified sell-through rather than sell-in; approval requirements for sales above a volume threshold to new customers; a documented end-of-life disposition policy; a disclosed refurbishment program; and demand planning discipline that reduces the excess inventory in the first place.

Say it plainly to leadership. A legal department that reports "we have identified the source and it is us" is delivering the most useful finding of the entire program. The temptation to soften it produces a program that spends years litigating against resellers while the supply continues.

Marketplace and online enforcement in practice

Most unauthorized goods now reach consumers through online marketplaces, and platform programs resolve more listings than every other channel combined.

Enroll properly. Each major platform maintains a brand registry requiring proof of trademark registration and, usually, a designated contact. Enrollment unlocks faster processing, seller-level tools, and in some cases proactive detection.

Submit the right package. For counterfeit listings, the registration and a statement of non-authorization suffice. For gray market listings, the material-differences documentation is what makes the complaint actionable — platforms will not remove genuine goods on a bare assertion that they are unauthorized, but many will act where the goods are shown to be materially different and the listing does not disclose it.

Report at the seller level, not just the listing level. Platforms weight patterns. Twelve individual listing reports produce twelve removals; a documented seller-level complaint showing a pattern can produce an account action.

Track sellers across platforms. The same operator typically appears on three or four, often with variations of the same storefront name, shipping from the same address. A cross-platform map is worth building.

Use the platform's counterfeit-specific programs where the goods are actually counterfeit — several offer expedited handling, test purchase support, and referral to enforcement partners.

Understand the appeal dynamic. Sellers contest removals, and platforms restore listings where the seller shows the goods are genuine. This is why the complaint must be framed as material differences with documentation rather than as "unauthorized," which the seller will rebut correctly.

Watch for retaliation. Sellers sometimes respond with claims of anticompetitive conduct or with counter-notices alleging bad faith reporting. A well-documented file answers this; a pattern of unsupported removals does not.

Combine with the supply-side work. Platform removals are effective and endless. A seller removed today is replaced tomorrow unless the goods stop arriving.

Serialization and traceability: getting it right

Every investigation in this field depends on being able to answer one question: which shipment did this unit come from? Brands that can answer it in an afternoon solve gray market problems. Brands that cannot spend years on enforcement that does not scale.

Choose the granularity honestly.

For most products, case-level coding tied to a shipment database delivers nearly all the investigative value at a fraction of the cost of unit serialization.

Make removal hard and detectable.

• Laser-etch or emboss rather than print with ink.
• Place the code under a component, inside a battery compartment, or on a surface that cannot be accessed without disassembly.
• Duplicate it. A second code in a non-obvious location means removal of the visible one is itself evidence, and the hidden one still traces.
• Consider covert marking — an ultraviolet-reactive or microprinted identifier — which is inexpensive and which diverters do not know to remove.

Maintain the database. A code is useless without a system that resolves it to a production date, a shipment, a consignee, and a date of sale. This is an information technology project, not a legal one, and it is the part most often left half-finished.

Test the chain quarterly. Buy a unit from an authorized dealer and trace it end to end. Time the exercise. If it takes more than a day, the system will not support an investigation under time pressure.

Protect the codes internally. Brands sometimes remove or obscure their own codes for cosmetic or packaging reasons without understanding what it costs. Make code integrity a specification requirement with a named owner, and require legal sign-off on any change.

Document the system. For litigation and for Customs, you will need to explain how the code works, what it proves, and why it is reliable. A short written description of the coding scheme, maintained current, saves considerable effort later.

Frequently asked questions

Can we use the ITC against gray market imports? Sometimes. A Section 337 investigation under 19 U.S.C. § 1337 can reach materially different imported goods bearing a registered mark, and the remedy — an exclusion order administered at the border — is powerful. The domestic industry requirement must be satisfied, and the cost is substantial, so this route suits large-volume problems with an identifiable importer rather than a diffuse reseller population.

How do we handle a distributor who says it did not know the buyer would export? Under a well-drafted agreement, knowledge is not the issue: the obligation is to sell only within the territory and only to permitted customers, and selling a container to a trading company with no end-user business breaches it regardless of stated intent. If the agreement conditions liability on knowledge, amend it. Diverters rely on plausible deniability, and contracts should not supply it.

How do we prove the goods came from a particular distributor? Codes, primarily — recovered lot or serial codes resolved against the shipment database. Secondary evidence: packaging variants unique to a region, regional firmware builds, documentation language sets, and accessory configurations. Where codes are fully removed, the combination of the remaining regional indicators usually narrows the field to one or two consignees, which is enough to justify an audit.

What if the diverting distributor is in a jurisdiction where our agreement is hard to enforce? Termination is usually available regardless, and it is the remedy that matters most because it cuts supply. Damages may be impractical to collect. Consider whether the agreement's dispute resolution clause specifies arbitration under a convention that makes awards enforceable, and whether future agreements in that region should.

Does a "not for sale in the United States" marking help? Modestly. It supports the material-differences case and undercuts an argument that the seller was unaware. It does not by itself make importation unlawful, and diverters remove or obscure it.

Can we stop genuine goods with no material differences? Not through trademark, copyright, or patent. The remedies are contractual, against whoever diverted them.

How specific must the material differences documentation be? Very. Photographs, specifications, and an explanation of why each difference matters to purchasers. Assertions that goods are "not intended for the United States market" are not enough.

Will Customs stop everything once we record? No. Recordation enables enforcement; identification materials and targeting information produce it.

Can we require distributors to sell only in their territory? Within competition law limits, which differ by market. Get local advice; some jurisdictions treat parallel-trade restrictions far more harshly than United States law does.

What if our own subsidiary is the source? Common, and it is a governance problem rather than a legal one. Internal transfer pricing and regional sales targets frequently create the incentive. Fix the incentive.

Should we buy back gray market inventory? Occasionally, to remove a specific problem from the market. Never as a policy — it creates a guaranteed buyer of last resort and funds the next diversion.

How do we handle refurbished and returned goods? Reselling reconditioned goods under the mark is lawful with clear disclosure and unlawful without it. Build a disclosed refurbishment program rather than letting returns leak into the gray channel.

Measuring whether the program is working

Anti-diversion programs consume budget indefinitely unless someone measures them, and the wrong metrics produce activity without results.

Metrics that mislead:

• Listings removed. Removals are easy and endless. A program can remove ten thousand listings while volume stays flat.
• Letters sent. Same problem.
• Customs detentions. Useful, but detentions measure enforcement effort rather than market outcome, and they are heavily influenced by factors the brand does not control.

Metrics that matter:

Set a baseline before the program starts. Brands routinely begin enforcement without measuring the starting point and then cannot demonstrate improvement.

Review quarterly with the commercial team, not only with legal. The decisions that move the numbers — pricing, product differentiation, channel compensation — belong to the business. A legal program reporting into a legal-only review produces legal-only interventions.

Expect a residual and accept it. No program eliminates parallel trade where a meaningful price differential exists. The realistic objective is to reduce it to a level where authorized dealers can compete and where the brand's channel commitments are credible. Declaring victory at zero is how programs lose funding when they inevitably fall short.

Related documents

• Gray Market Goods and the First Sale Doctrine: Parallel Imports, Exhaustion, and Border Enforcement
• Customs IP Enforcement Checklist: A Practical Checklist
• Border Enforcement Toolkit: Recordations, Seizure Responses, and Gray Market Programs
• Importing Lawfully and Managing Tariff Exposure: A Practical Guide
• Litigating a Section 337 Investigation at the ITC: A Practical Guide
• Counterfeiting, Seizure Orders, and Schedule A Litigation: Fighting Fakes in Federal Court
• Brand Protection Online: A Strategic Guide for Businesses
• Antitrust Compliance for Distribution and Pricing: Resale Price Maintenance, Colgate, and Territory Restrictions