CBP importer crackdown puts thousands of cross-border freight shipments at risk 

U.S. Customs and Border Protection begins voiding importer numbers over inaccurate records, potentially stranding cargo at ports and border crossings

U.S. Customs and Border Protection has begun immediately voiding importer-of-record numbers with inaccurate or incomplete information, potentially preventing affected companies from clearing shipments into the U.S. (Photo: Jim Allen/FreightWaves)

U.S. Customs and Border Protection has begun voiding importer-of-record numbers containing inaccurate or incomplete information, an enforcement crackdown that could prevent affected companies from clearing U.S.-bound freight and leave cargo stranded at ports of entry.

The new enforcement regime took effect Friday and applies to existing as well as new importers. Once CBP voids an importer-of-record, or IOR, number, it cannot be used for any purpose, including making entry into the United States.

That could turn what might appear to be a customs paperwork problem into an immediate supply-chain disruption involving importers, customs brokers, freight forwarders, trucking companies and warehouses.

CBP announced the enhanced enforcement in an Aug. 19 Federal Register notice as part of a broader effort to verify the identities of companies bringing goods into the country.

The agency said it is comprehensively reviewing information submitted on Form 5106, which is used to establish or update an importer identity with CBP.

If CBP determines that an importer, or a customs broker acting on its behalf, failed to provide complete and accurate information, the agency can void the IOR number and pursue additional enforcement action.

The agency has not publicly disclosed how many importer numbers have been voided since the new enforcement took effect.

Those requirements could pose particular issues for some foreign companies importing goods into the United States.

Potentially exposed arrangements include nonresident importers that have listed a U.S. customs broker’s address because they lack U.S. premises, foreign sellers acting as importers of record in delivered-duty-paid transactions, e-commerce sellers using third-party fulfillment centers and smaller importers whose records were created years ago and have not been updated, according to an analysis by Diaz Trade Law.

The enforcement could have implications for cross-border freight moving from Mexico and Canada, where foreign companies may serve as nonresident importers of record for merchandise entering the U.S.

One of the biggest operational risks is that an importer may not discover that its number has been voided until a shipment is already moving through the supply chain.

CBP will send written notification of the voiding to the email address most recently submitted by the importer and, when applicable, copy the customs broker that most recently filed an entry on its behalf.

CBP’s notice does not describe a process in which importers receive a warning or period to correct the information before their numbers are voided. Instead, an importer can seek to have the number reestablished after CBP takes action.

Importers caught in that situation could face additional costs while freight waits for the issue to be resolved. Diaz Trade Law warned that affected cargo could accrue port-related costs while companies work with CBP to reestablish their numbers.

Importer enforcement grows on both sides of US-Mexico border

The CBP crackdown comes as authorities on both sides of the U.S.-Mexico border have increased scrutiny of companies participating in international trade, although the U.S. and Mexican enforcement initiatives are separate.

Mexican authorities earlier this year suspended import activities and began proceedings to cancel permits for 350 companies involved in steel imports after regulators alleged irregularities involving some importers.

The companies were among 750 firms flagged for review as part of a Mexican government crackdown on smuggling and alleged misuse of trade programs.

Some of the companies faced removal from Mexico’s Manufacturing, Maquiladora and Export Services Industry, or IMMEX, program, which allows export-oriented manufacturers to temporarily import raw materials and components without paying duties.

Another 400 companies remained under investigation and were required to provide additional documentation.

Customs brokers face greater scrutiny

CBP’s enforcement push also places customs brokers under increased scrutiny.

Brokers submitting importer information must conduct due diligence to ensure the information is accurate and cannot simply substitute their own contact information for that of their customers.

CBP regulations also require brokers to obtain a power of attorney directly from the importer rather than through a freight forwarder or other third party.

Inaccurate or misleading information could expose brokers to monetary penalties and other enforcement action.

“A brokerage that populated its own address, email, or phone across hundreds of client records has hundreds of potential defects,” Diaz Trade Law said.

Why it matters: The crackdown turns importer identity records into a potential cargo-clearance issue for shippers, customs brokers and cross-border freight operators moving goods into the U.S. 

Upcoming FreightWaves Events
Compliance

Brokerage Compliance Symposium

The day before F3. Every compliance issue you face - fraud exposure, carrier liability, FMCSA rules, cargo theft, insurance gaps - navigated by attorneys and operators defining best practices in a changing industry.

October 26, 2026
The Signal at Chattanooga Choo Choo • Chattanooga, TN
Register Now
Awards

F3 Awards Dinner

The night before F3. FreightTech100 companies honored. FreightTech 25 and Shipper of Choice winners revealed live. Cocktail reception into dinner and live music - 300 industry leaders in one purpose-built room.

October 26, 2026
The Signal at Chattanooga Choo Choo • Chattanooga, TN
Register Now
FreightTech

F3: Future of Freight Festival

Industry-defining keynotes, rapid-fire technology demos, and industry leaders networking in experiences across Chattanooga - plus the inaugural F3 Awards Dinner featuring the FreightTech and Shipper of Choice reveals.

October 27, 2026 – October 28, 2026
The Signal at Chattanooga Choo Choo • Chattanooga, TN
Register Now
Compliance Brokerage Compliance Symposium Oct 26 • The Signal at Chattanooga Choo Choo • Chattanooga, TN

The day before F3. Every compliance issue you face - fraud exposure, carrier liability, FMCSA rules, cargo theft, insurance gaps - navigated by attorneys and operators defining best practices in a changing industry.

The Signal at Chattanooga Choo Choo • Chattanooga, TN Register Now
Awards F3 Awards Dinner Oct 26 • The Signal at Chattanooga Choo Choo • Chattanooga, TN

The night before F3. FreightTech100 companies honored. FreightTech 25 and Shipper of Choice winners revealed live. Cocktail reception into dinner and live music - 300 industry leaders in one purpose-built room.

The Signal at Chattanooga Choo Choo • Chattanooga, TN Register Now
FreightTech F3: Future of Freight Festival Oct 27 – Oct 28 • The Signal at Chattanooga Choo Choo • Chattanooga, TN

Industry-defining keynotes, rapid-fire technology demos, and industry leaders networking in experiences across Chattanooga - plus the inaugural F3 Awards Dinner featuring the FreightTech and Shipper of Choice reveals.

The Signal at Chattanooga Choo Choo • Chattanooga, TN Register Now

Noi Mahoney

Noi Mahoney is a Texas-based journalist who covers cross-border trade, logistics and supply chains for FreightWaves. He graduated from the University of Texas at Austin with a degree in English in 1998. Mahoney has more than 20 years experience as a journalist, working for newspapers in Maryland and Texas. Contact nmahoney@freightwaves.com