510k Exempt Devices: What Importers Still Owe FDA at Entry

A 510(k) exemption is the most misread status in device importing. It removes one requirement, the premarket notification under 21 CFR 807 subpart E, and leaves every other control in place. The foreign plant still has to be registered, the device still has to be listed, the carton still has to meet part 801 labeling, and the entry still has to carry three mandatory FDA Affirmation of Compliance codes. Importers who treat a 510k exempt product as a line with no FDA paperwork find out at the port, when the entry fails automated screening and goes to manual review.

This guide covers what the exemption removes and what it keeps, the limitations that quietly cancel it, how exempt status is transmitted in ACE, the rule behind each common hold on exempt lines, and the changes of the past year that affect them. Facts are taken from the eCFR, FDA’s March 2026 ACE Quick Reference Guide and FDA’s classification database as of September 2026.

What 510(k) Exemption Removes and What It Keeps

Exemption is decided device type by device type, in the classification regulation for that generic type. The elastic bandage regulation at 21 CFR 880.5075 is typical: Class I, general controls, exempt from the premarket notification procedures in subpart E of part 807, subject to the limitations in 880.9. That sentence is the whole exemption. It says nothing about registration, listing, labeling or adverse event reporting, and none of those are waived.

Class is not a shortcut. FDA states that approximately 572, or 74%, of Class I device types are exempt from 510(k), which leaves roughly a quarter that are not. The non-powdered surgeon’s glove at 21 CFR 878.4460 is Class I and carries no exemption language, so it needs a cleared 510(k). The reverse also happens. Surgical N95 respirators under 878.4040(b)(1) are Class II and exempt only if they are NIOSH-approved, biocompatibility is shown, and flammability and fluid resistance are characterized. They lose the exemption if they claim antimicrobial, antiviral or smoke filtration performance.

For the importer of record, the operative rule is 21 CFR 807.40(c): no device may be imported or offered for import unless it is listed and manufactured at a registered foreign establishment. The US side carries its own duties. An initial importer registers its own establishment and meets its listing obligation by identifying the foreign manufacturers under 21 CFR 807.20(a)(5), rather than listing devices, unless it also relabels or repacks. Those role duties are covered on our FDA initial importer page; the table below covers what attaches to the exempt device itself.

Limitations of Exemption Under 21 CFR 8xx.9

Every classification part from 862 to 892 contains a .9 section, and every exemption in that part is conditional on it. 21 CFR 880.9 is representative. The exemption holds only for a device that has the existing or reasonably foreseeable characteristics of commercially distributed devices within its generic type. Step outside that and a 510(k) is required, even though the product code still reads exempt in FDA’s database. The limitations of exemption fall into three groups:

The test runs against the carton, not the catalog

What decides the limitation is the product description, the labeling and the claims printed on the goods that actually ship. 21 CFR 880.5240 covers medical adhesive tape and adhesive bandages without a disinfectant. An adhesive bandage whose pad carries an antimicrobial sits outside that generic type and outside the exemption, and it may be regulated as a drug-device combination product. The same pattern catches private-label programs where the US brand adds a claim the original product never made.

Private label has one narrow relief. Under 21 CFR 807.85(b), a distributor or repackager that only adds its own name and changes nothing else is exempt from premarket notification when another person has already filed a 510(k) for the device. That relief applies where another firm filed the 510(k) or the device was marketed before 28 May 1976, and it does not touch the registration and listing checks at entry. A brand owner that writes the specifications for a contract-made device is a specification developer, which registers, lists and falls under the quality system rules in its own right.

• Different intended use, 8xx.9(a): a new medical purpose, or a change from professional use to lay use, such as a clinic product repackaged and marketed to consumers.
• Different fundamental scientific technology, 8xx.9(b): for example, a device that cuts with a laser where the generic type uses a blade.
• High-risk in vitro diagnostic uses, 8xx.9(c): IVDs intended for cancer, genetic disorders, surrogate markers for HIV, hepatitis, tuberculosis or myocardial infarction, cardiovascular risk, diabetes management, direct identification of microorganisms, certain antibody assays, noninvasive testing or point-of-care use.

How Exempt Status Is Declared at Entry

FDA data for a device line travel with the customs entry through ACE as the FDA PGA message set, and exempt status is expressed by what the filer transmits and what it leaves out. FDA’s Industry Quick Reference Guide to the ACE Supplemental Guide, dated 10 March 2026, sets the codes for a foreign-manufactured finished device under Intended Use Code 081.001, and for a foreign-made device imported to be refurbished in the United States under 081.002 (an already refurbished device stays under 081.001).

What the missing PM# tells FDA

FDA’s wording on PM# is that if the product requires premarket clearance, such as a 510(k), the premarket number must be provided. For an exempt device no PM# is sent, and that absence is how the entry says exempt. DEV, DFE and LST stay mandatory. Kits of foreign-made finished devices go under Intended Use Code 081.004, where DEV, DFE, KIT and LST are all mandatory. FDA also states that declaring a code not on its list results in an entry rejection.

The FDA product code on the line has to match the product code on the listing. Device product codes sit in industry codes 73 to 92, and a mismatch between the entry and the listing is one of the fastest ways to lose an automated release. The HTSUS number and the FDA product code are chosen under different rules, and both need to be right, so an HTS classification review on device lines should check the two side by side.

Numbers the broker needs before the goods ship

Section 801(o) of the FD&C Act gives the requirement its edge: if the device registration information is not submitted at entry, the article may be refused admission and held at the port. The foreign manufacturer already has to identify each known importer and each person who imports or offers devices for import, brokers included, under 21 CFR 807.41. A customs brokerage setup for devices therefore starts with the supplier’s registration and listing data rather than the commercial invoice.

Three FDA databases settle the question before filing. The Product Classification Database shows class, regulation number, and 510(k) and GMP exempt status for each product code. FDA’s list of Class I and Class II exemptions gives the same answer by device type, and FDA itself tells users to confirm exempt status and limitations against 21 CFR parts 862 to 892. The Registration and Listing database confirms that the foreign establishment and the listing are active.

Why Exempt Devices Still Get Held

Exempt status removes a document; it does not lower the screening. FDA says entries transmitted with complete, accurate and valid data may receive a lower risk score and a May Proceed release. Anything else goes to manual review, which since 4 August 2025 has been handled centrally by the FDA ImportShield Program rather than port by port. The holds seen on exempt lines trace back to a short list of rules:

Preventable from the desk

Almost every one of these holds can be caught with data the importer can check before booking: registration status, listing product code, the three mandatory codes, the sterile flag and the carton claims. What happens once a Notice of FDA Action issues is a separate process. Device admissibility sits alongside the other agency controls covered in our guide to prohibited and restricted imports, and the same rule holds across all of them: the problem is cheaper to fix in the supplier file than at the terminal.

• Inactive registration: the foreign establishment missed the annual 1 October to 31 December update or did not pay the establishment fee, and shows as failed to register under 807.22(c).
• Missing or mismatched listing: the device is not listed, or is listed under a product code that differs from the entry line (807.40(c)).
• Missing or wrong codes: DEV, DFE or LST was not transmitted, or the numbers do not match FDA records.
• Outside the generic type: a new claim, lay use, a different technology or a .9(c) IVD use means the exemption never applied.
• Sterile versions: the tongue depressor (880.6230) and absorbent tipped applicator (880.6025) are GMP exempt only when not labeled or otherwise represented as sterile. A sterile version booked as exempt breaks that condition.
• Labeling under part 801: no English labeling, no name and place of business, or no adequate directions for use.
• Import Alerts: a firm or product on an Import Alert is subject to detention without physical examination whatever its exempt status. Import Alert 89-08 covers devices without a required 510(k) or PMA, and 99-34 covers firms without valid registration or listing.
• UDI gaps: a device that requires a UDI and lacks one, or lacks a matching GUDID record, falls under Import Alert 99-49.

What Changed in 2026 for Exempt Device Imports

The most material change for exempt lines sits inside the classification regulations rather than in the exemption itself. A technical amendments rule published on 4 December 2025 (90 FR 55978, FR Doc. 2025-21955), effective 2 February 2026, rewrote the GMP exemption wording across the classification parts to cite the Quality Management System Regulation. Devices that keep a recordkeeping duty now point to records and complaint files under 820.35.

The Quality Management System Regulation took effect on 2 February 2026. It rebuilt part 820 around ISO 13485:2016 and retired the old section numbers, including 820.198 for complaint files. The GMP exemptions did not become broader in the process. The elastic bandage remains GMP exempt except for 820.35, the adhesive bandage under 880.5240 has no GMP exemption, and the sterile condition on the tongue depressor and swab still applies, so a supplier quality file remains part of an exempt device program.

UDI enforcement reached the border. Import Alert 99-49, published 22 June 2026, provides for detention without physical examination of devices without a UDI or a matching GUDID record. Under 801.30(a)(2) the main relief is for Class I devices that FDA has exempted by regulation from part 820 GMP, so 510(k) exemption alone does not excuse a missing UDI. ACE carries the device identifier as the DI code, which is optional for Intended Use Code 081.001.

FDA’s entry review also changed platforms. The March 2026 Quick Reference Guide is now the current source for which codes are mandatory by commodity, and SERIO+, which brings PREDICT screening and FDA’s internal review tools into one system, was planned by FDA for full implementation in March 2026.

Registration renewal costs more. The annual device establishment registration fee for FY2027, covering payments from 1 October 2026 to 30 September 2027, is $13,785 under the notice published on 30 July 2026. The renewal window opens with that fee, and a foreign supplier that lets registration lapse drops to failed-to-register status, which stops its exempt devices at entry as surely as it stops cleared ones.

A Pre-Shipment Check for Exempt Device Lines

Run these checks per product code and per supplier, before the purchase order ships:

Exemption is not a duty status

Premarket exemption has no bearing on what the goods pay at entry. A 510(k)-exempt device from China or the EU still pays whatever chapter 99 duties apply, including the Section 301 forced labor tariffs, which carry no blanket device exemption.

The checks above only hold up if they are written down and repeated every renewal cycle. Folding them into a documented trade compliance management program keeps exempt device imports from depending on one person remembering the October window or the sterile flag on a single SKU.

• Confirm exemption by product code in the Product Classification Database, then read the .9 section of that CFR part against the actual labeling and claims.
• Check whether the device is sterile and whether its GMP exemption survives sterility.
• Verify that the foreign manufacturer’s and exporter’s registrations are active for the current fiscal year, and that the listing uses the same product code as the entry line.
• Collect DEV, DFE and LST numbers before departure, and decide whether the line is a kit under 081.004.
• Confirm UDI and GUDID status unless the device is a Class I type exempted from part 820.
• Screen the firm and the product against current device Import Alerts.

Frequently Asked Questions