INTERNATIONAL TRADE LAW
FDA Import Enforcement: Detentions and Refusals

The FDA can hold any imported food, drug, device, or cosmetic at the border and refuse it entry if the product appears to violate U.S. law — the agency does not have to prove an actual violation first. That “appears to” standard, set by Section 801 of the Federal Food, Drug, and Cosmetic Act (21 U.S.C. § 381), is what makes FDA import enforcement different from ordinary customs work and far easier for the agency to trigger. This guide explains how the FDA stops shipments, what a refusal means, and how importers stay off its radar.
The authority: FD&C Act Section 801
The FDA regulates a wide range of imported products — food, drugs, biologics, medical devices, cosmetics, tobacco, and more — under the FD&C Act. Section 801 gives it the power to refuse admission to any FDA-regulated article that appears to be adulterated, misbranded, produced under insanitary conditions, or otherwise in violation. Because the test is appearance, not proof, the burden falls on the importer to demonstrate the product complies.
The FDA works alongside CBP at the border. Import data for FDA-regulated goods is transmitted electronically through CBP’s Automated Commercial Environment, which routes it to the FDA for a screening decision before the goods are released.
How an FDA import action unfolds
When the FDA flags a shipment, the process generally moves through predictable stages:
| Stage | What happens | Your move |
|---|---|---|
| Review / “May Proceed” | FDA screens entry data; low-risk goods are released | Nothing further |
| Detention / sampling | FDA issues a Notice of FDA Action detaining the goods or requesting a sample | Hold the goods; do not distribute |
| Hearing | You get an opportunity to submit testimony and evidence that the goods comply | Respond with records and lab results |
| Refusal of admission | FDA concludes the goods appear to violate the law | Export or destroy under CBP supervision |
| Reconditioning | Where allowed, you may fix the problem (relabel, sort, treat) | Apply to recondition; FDA must approve |
The key practical point: a detention is not the end. The Notice of FDA Action gives you a window to respond with evidence — labeling, certificates, testing, manufacturing records — showing the product is compliant. If you cannot, the FDA issues a refusal, and the goods must be exported or destroyed under CBP supervision. In some cases you may apply to recondition the goods (for example, relabeling a misbranded product), but reconditioning requires FDA approval and is not available for every violation.
Import alerts and detention without physical examination
If a product, manufacturer, or importer racks up problems, the FDA can issue an Import Alert, signaling to its field staff that future shipments may be subject to Detention Without Physical Examination (DWPE) — often called being placed on the “red list.” Once you are on an import alert, the appearance of a violation is presumed, and your shipments can be detained automatically until you affirmatively prove compliance, product after product. Getting off an import alert typically requires a documented record of compliant entries and a petition to the FDA. Avoiding one in the first place is far easier.
What trips importers up
The most common violations are predictable: inadequate or non-compliant labeling, adulteration or misbranding, failure to register a facility or list a product, and missing pre-market clearances for devices or drugs. Two food-specific programs catch many importers off guard:
- Foreign Supplier Verification Program (FSVP). Under Section 805 of the Act, food importers must verify that their foreign suppliers produce food meeting U.S. safety standards and keep records proving it. FSVP recordkeeping failures are a frequent basis for FDA warning letters.
- Prior Notice. Food shipments generally require advance electronic notice to the FDA before they arrive, a requirement that dates to the Bioterrorism Act of 2002.
How to stay compliant
The importers who clear the FDA cleanly do the same things: they confirm their product category and its specific requirements (registration, listing, pre-market approval) before shipping; they vet suppliers and keep the records FSVP and reasonable care demand; they get labeling reviewed against FDA rules; and they file complete, accurate entry data. Building those steps into a documented import compliance program is the most reliable way to avoid detentions, refusals, and the long road back off an import alert.
FAQ
Can the FDA refuse my import without proving it is unsafe? Yes. Under FD&C Act Section 801, the FDA can refuse goods that merely appear to be adulterated, misbranded, or otherwise in violation. The importer bears the burden of showing compliance.
What is the difference between a detention and a refusal? A detention holds the goods and gives you a chance to submit evidence of compliance. A refusal is the FDA’s conclusion that the goods may not enter; refused goods must be exported or destroyed, though reconditioning is sometimes allowed.
What is an FDA import alert? A notice to FDA field staff that certain products, firms, or countries warrant heightened scrutiny, often leading to Detention Without Physical Examination. Shipments are held until the importer proves the goods comply.
What is FSVP? The Foreign Supplier Verification Program. Food importers must verify their foreign suppliers meet U.S. safety standards and keep records doing so; failures are a common enforcement trigger.
Importing FDA-regulated products? Reidel Law Firm prepares flat-fee Import/Export Compliance Memos and advises importers on detentions, refusals, FSVP, and import-alert removal — with direct attorney access. Request a compliance memo →


