INTERNATIONAL TRADE LAW
FDA Import Rules for Medical Devices
To import a medical device into the United States, the device must clear FDA’s premarket requirements and its makers and importers must be registered and listed with FDA before the goods reach the border. What that looks like in practice depends on the device’s risk class — a Class I bandage and a Class III implant face very different paths. This guide walks through classification, the premarket pathways, the registration and labeling rules, and the quality-system regulation that changed in 2026.
Start With the Device Class
FDA regulates medical devices on a risk-based scale. The class determines what you must do before the device can be imported and sold.
| Class | Risk level | Controls | Typical premarket path |
|---|---|---|---|
| Class I | Low | General controls | Usually exempt from premarket review |
| Class II | Moderate | General + special controls | 510(k) clearance |
| Class III | High | General controls + premarket approval | PMA |
The class is not a matter of opinion — FDA’s product classification database assigns devices to categories. Before anything else, an importer should confirm the device’s classification, because everything downstream (which submission is required, what controls apply) flows from it. For a broader walk-through of the import process, see our primer on importing medical devices to the U.S.
The Premarket Pathways
Most devices need FDA’s sign-off before entry. The three main routes:
- 510(k) (premarket notification) — the common path for Class II devices. You demonstrate the device is substantially equivalent to a legally marketed “predicate” device. FDA “clears” it.
- PMA (premarket approval) — the path for Class III devices. You submit scientific evidence that the device is safe and effective. This is the most rigorous review, and FDA “approves” it.
- De Novo — for novel low-to-moderate-risk devices that have no predicate, providing a route to market without forcing a PMA.
A device that needs a 510(k) or PMA cannot be imported until that clearance or approval is in place, and the entry filing must reference the correct submission number.
Registration, Listing, and the U.S. Agent Rule
Premarket clearance is necessary but not sufficient. The businesses in the supply chain must also be on file with FDA:
- Establishment registration — manufacturers (domestic and foreign) and initial importers must register their establishments with FDA and renew annually.
- Device listing — registered establishments must list the devices they make or handle.
- U.S. Agent — a foreign manufacturer must designate a U.S. Agent, a person or company in the United States who serves as FDA’s point of contact. This is a frequent stumbling block for importers bringing in devices from overseas makers.
- Unique Device Identification (UDI) — most devices must carry a UDI on labels and packaging, with data submitted to FDA’s database, supporting traceability and recalls.
What Happens at the Border
When a regulated device arrives, the entry is screened by FDA through the Automated Commercial Environment (ACE). FDA checks that the establishment is registered and the device listed, that any required 510(k) or PMA is referenced and valid, and that labeling and UDI requirements are met. If something is missing, FDA can issue a Notice of FDA Action, detain the shipment, and ultimately refuse admission — at which point the goods must be exported or destroyed. Accurate entry data (the FDA product code and submission numbers) is what keeps a compliant device from being held over a paperwork gap. Country-of-origin marking requirements and other agency rules still apply on top of FDA’s, so a device can satisfy FDA and still be held for a customs issue.
The 2026 Quality-System Change (QMSR)
The biggest recent change is the quality-system rule. As of February 2, 2026, FDA’s Quality Management System Regulation (QMSR) took effect, amending 21 CFR Part 820 and incorporating the international standard ISO 13485:2016 by reference. The QMSR replaces the decades-old Quality System Regulation (QSR). For manufacturers that already run an ISO 13485 quality system, this brings FDA’s expectations into closer alignment with the standard used in much of the world; for others, it changes how Part 820 reads and how FDA inspects. Importers should confirm that their foreign manufacturers’ quality systems meet the current QMSR framework rather than the retired QSR.
Frequently Asked Questions
What is the first step to importing a medical device?
Determine the device’s FDA classification (Class I, II, or III). The class drives which premarket submission is required and what controls apply, so it has to be settled before registration, listing, or entry planning.
Does a foreign device manufacturer need anything special?
Yes. A foreign manufacturer must register with FDA, list its devices, and designate a U.S. Agent located in the United States to act as FDA’s contact. Missing the U.S. Agent requirement is a common cause of import problems.
What is the difference between 510(k) and PMA?
A 510(k) clears a device by showing it is substantially equivalent to an already-marketed device, typically for Class II. A PMA approves a device based on evidence of safety and effectiveness, required for high-risk Class III devices.
What changed with the QMSR in 2026?
Effective February 2, 2026, FDA’s Quality Management System Regulation amended 21 CFR Part 820 to incorporate ISO 13485:2016 by reference, replacing the old Quality System Regulation and aligning FDA’s quality requirements with the international standard.
A single missing element — an unlisted establishment, no U.S. Agent, a stale quality system — can detain a shipment of devices at the border. Reidel Law Firm helps importers map FDA requirements before goods ship, on flat-fee terms. Get an import compliance memo.
