Research
How an import alert works
An import alert lets shipments be detained without anyone opening a box. It runs on an appearance standard rather than a test result, and the lists inside it are read in a way that is easy to get backwards.
What the instrument is
The agency describes import alerts as a way to protect consumers against products with a history of known violations. After discovering a violation, it can place a product on an alert and then detain future shipments without having to test or otherwise physically examine them.
The shorthand for that is detention without physical examination. The agency uses the abbreviation on its own pages.
The authority behind it is section 801 of the Federal Food, Drug, and Cosmetic Act, which lets the agency refuse products that appear to be in violation. The agency calls this the appearance standard, and the phrase does real work.
A product subject to detention without physical examination is detained and refused. The one route out is for the importer to overcome the appearance of the violation, by demonstrating that the product does not have the violation listed on the alert.
One consequence follows immediately. A listing is a statement about how a shipment appears on paper. It is not a laboratory result about the contents of a container.
The agency also says what a listing can be built on. Violations could relate to the product, the manufacturer, the shipper, the importer, the country of origin, or other information.
What an alert document contains
Every alert follows the same layout. The agency states that each one lists the reason for the alert, what products and firms are affected, what laws or regulations appear to have been violated, and other information.
The section that matters most is called Guidance. The agency says it explains how detention without physical examination is applied, how to secure a release of a shipment, how to be removed from the alert, and who to contact.
That section is also where the hardest fact lives. The agency states that the Guidance section will note if the violation associated with an alert precludes release of shipments subject to it.
Alerts do not last forever by design. They can be deactivated where they are found no longer to be applicable. They can also be replaced by new alerts, with a manufacturer and product combination moved to the newer one if it still applies. Historical copies are obtained through a public records request.
The advice the agency gives importers is preventive rather than reactive. It recommends determining before importing whether a product is subject to detention without physical examination, and becoming familiar with the instructions and the evidence that would be needed to secure a release.
Three lists, and one of them reads backwards
An alert carries colored lists, and the agency spells out how they are read because the logic inverts between them.
A red list names firms, products or countries that have met the criteria for detention without physical examination. A yellow list names those subject to intensified surveillance, or firms that may have satisfied manufacturing issues where the nature of the violations may still warrant further field examinations or additional analyses.
A green list is the opposite. It names firms, products or countries that have met criteria for exemption from detention without physical examination.
So the reading rule flips. Where an alert has a red or yellow list, appearing on it means being subject to detention, and not appearing means not being subject to it under that alert. Where an alert has a green list, appearing on it means being exempt, and not appearing means being subject.
The agency states the same point about disappearing from a list. Coming off a red list means the appearance of the violation has been overcome. Coming off a green list means it has not, and the firm and product are subject to detention again.
Notification, and the thing an alert is often confused with
There is usually no letter. The agency states that in most cases the publication of a firm or product on an alert, or its removal, serves as the notification to the firm.
A detention is not the same event as an alert. The agency answers that directly: not all detentions are due to import alert violations, and the notice of action issued on a detained shipment details the reason it was detained.
Where a shipment is detained without physical examination, the importer or consignee has the right to introduce testimony and evidence to demonstrate that the product does not have the violation listed on the alert. That is a shipment-level route, and it is separate from getting a listing changed.
Where to ask depends on what is being asked. The agency directs questions about a detained shipment to the compliance officer named on the notice of action, and questions about policy or petitions to its import operations division.
Sampling questions get their own answer. Where an importer has a question about sample size, method or an alternative approach, the agency asks for it in detail to the compliance officer, who may consult the relevant product center.
The agency also notes that a change in the conditions used as evidence may change a listing in either direction. It names company name, ownership, physical location, facilities, equipment, procedures, products and labeling as examples of such a change.
The duty to report such a change sits with the listed firm. The agency asks that notification and documentation of the change be submitted to its import operations division, and notes that some petitions go instead to the compliance officer working the case.
What removal takes
Removal is a petition, and the standard is stated in one sentence. For a product or firm to come off detention without physical examination, there must be evidence that the conditions leading to it have been resolved and that future shipments will be safe and compliant.
The agency publishes what a petition might contain, and it differs slightly depending on which list is at issue. For a red list, it names an investigation into how the problem occurred, the corrective actions taken, the preventive measures adopted, and evidence that those measures are working. For a green list, it names an analysis of whether the problem exists in the product, the preventive measures, and evidence.
Under evidence, the agency gives examples in parentheses: five clean shipments, or a third-party audit.
Those shipments are expected to be ordinary. The agency states that articles offered for importation should be over the course of a reasonable time, and should reflect normal shipping patterns. It gives a worked example of a shipping pattern that would not qualify.
The agency says it considers the totality of evidence presented, and that a petition may contain different elements depending on the alert, the product, the problem and the type of removal sought.
Two adjacent situations get their own answers. A firm that no longer makes the listed product may petition, though the agency says it is not appropriate to petition for a product that is temporarily out of production. A firm that believes it was incorrectly named as the responsible party is pointed to a public records request to establish how it was transmitted to the agency.
Key takeaways
- An import alert allows shipments to be detained without physical examination, based on how they appear rather than on a test.
- The statutory authority behind it lets the agency refuse products that appear to be in violation, which the agency calls the appearance standard.
- Each alert names the reason, the affected products and firms, and the provisions that appear to have been violated.
- Red and yellow lists mark firms as subject to detention, while a green list marks exemption, so the two are read in opposite directions.
- Publication of a listing or its removal is itself the notification in most cases.
- Removal requires evidence that the conditions have been resolved, with clean shipments over a reasonable time or a third-party audit given as examples.
Frequently asked questions
What does an import alert actually do?
It allows future shipments of a listed product to be detained without being tested or physically examined. The agency describes this as detention without physical examination. It states that a product subject to it will be detained and refused. The importer can overcome that only by demonstrating that the product does not have the violation the alert lists.
Is an import alert a finding that a product is unsafe?
It is a finding about appearance rather than about contents. The authority behind it lets the agency refuse products that appear to be in violation, and the agency calls that the appearance standard. Detention under an alert happens without physical examination of the shipment, which is the whole point of the instrument.
How are the red, yellow and green lists read?
A red list names those meeting the criteria for detention without physical examination. A yellow list names those under intensified surveillance or whose violations may still warrant further examination. A green list names those exempt from detention. The logic inverts: appearing on red means subject, while not appearing on green also means subject.
Is a firm told when it is added to an alert?
Usually not separately. The agency states that in most cases the publication of a firm or product on an import alert, or its removal, serves as notification to the firm. The list itself is the notice, which is why the agency recommends searching the alerts before importing rather than waiting to be contacted.
Does a detained shipment mean an import alert exists?
No. The agency answers that not all detentions are due to import alert violations, and that the notice of action issued on the detained shipment details the reason for the detention. A detention can arise from an examination of that shipment rather than from a standing listing.
What does it take to come off an alert?
Evidence that the conditions leading to the listing have been resolved and that future shipments will be safe and compliant. The agency names an investigation into how the problem occurred, corrective actions, preventive measures, and evidence that they are working, giving five clean shipments or a third-party audit as examples. Those shipments are expected to reflect normal shipping patterns.
Sources
Each document below is named as it names itself, with the date printed on that document rather than the day it was read.
- Import Alerts, the program page describing detention without physical examination, the appearance standard, the contents of each alert, and how the yellow, red and green lists are read — U.S. Food and Drug Administration, March 2025
- Removal from DWPE Under Import Alert, giving the removal standard and the elements a petition may contain for a red list and for a green list — U.S. Food and Drug Administration, October 2024
- Industry FAQs for Import Alerts, covering the three list definitions, publication as notification, deactivated and replaced alerts, the right to introduce testimony on a detained shipment, and what counts as routine commercial shipments over a reasonable time — U.S. Food and Drug Administration, October 2024
- How to Read an Import Alert, stating that all import alerts follow the same basic format and layout — U.S. Food and Drug Administration, October 2024
- 21 U.S.C. 381 — Imports and exports, subsection (a), the authority to refuse admission to articles that appear from examination or otherwise to be adulterated, misbranded or otherwise in violation — Office of the Law Revision Counsel, United States Code, September 2026