FDA Class I Medical Devices: General Controls, Exemptions, and Regulatory Requirements

What Makes a Device "Class I"?

FDA Class I is the lowest-risk classification in the US medical device regulatory system. It covers devices that are not intended to support or sustain life, are not of substantial importance in preventing impairment to human health, and do not present a potential unreasonable risk of illness or injury. These are the devices you encounter every day in a clinical setting without thinking of them as regulated products — tongue depressors, elastic bandages, examination gloves, bedpans, manual surgical instruments.

But "lowest risk" does not mean "unregulated." This is the single most important point in this entire guide, and it is the misconception that creates the most compliance problems for Class I manufacturers. Every Class I device is subject to a set of baseline regulatory requirements called general controls. Many Class I devices are also subject to establishment registration fees, labeling requirements, medical device reporting obligations, and quality system requirements. Ignoring these obligations because your device is "only Class I" is a path to FDA Warning Letters, import alerts, and seized products.

Class I devices account for approximately 47% of all medical device types classified by the FDA — the largest share of any class. Of the roughly 1,700 generic device types recognized in the FDA's Product Classification Database, approximately 780 are Class I. The remaining device types split between Class II (about 43%) and Class III (about 10%).

The FDA's Definition

The FDA formally defines Class I devices in terms of what they are not. Under Section 513(a)(1)(A) of the Federal Food, Drug, and Cosmetic Act (FD&C Act), Class I devices are those for which general controls alone are sufficient to provide reasonable assurance of safety and effectiveness. The regulations further clarify that Class I devices are:

"not intended for use in supporting or sustaining life or of substantial importance in preventing impairment to human health, and they may not present a potential unreasonable risk of illness or injury."

This negative definition is important. The FDA does not classify devices as Class I because they are "simple" or "low-tech" — though many are. The classification is based on risk to patients and whether the baseline regulatory controls (general controls) are adequate to manage that risk. A mechanically complex device could be Class I if its failure would not cause serious harm. A seemingly simple device could be Class II or III if its failure could lead to death or serious injury.

Legal Foundation

The three-tier classification system was established by the Medical Device Amendments of 1976 to the Federal Food, Drug, and Cosmetic Act (FD&C Act). The classification framework is codified in Sections 513 through 515 of the FD&C Act and implemented through Title 21 of the Code of Federal Regulations, Parts 862 through 892 (21 CFR 862–892).

Each of the 16 medical specialty panels corresponds to a Part of the CFR:

CFR Part	Medical Specialty	Example Class I Devices
862	Clinical Chemistry	Urinary pH test strips, certain reagents
864	Hematology and Pathology	Blood cell counting devices, microscope slides
866	Immunology and Microbiology	Culture media, staining kits
868	Anesthesiology	Oxygen masks, nasal cannulas
870	Cardiovascular	Stethoscopes, electrode cables
872	Dental	Dental hand instruments, dental floss
874	Ear, Nose, and Throat	ENT manual instruments, ear plugs
876	Gastroenterology and Urology	Enema kits, urological instruments
878	General and Plastic Surgery	Scalpels, forceps, gauze
880	General Hospital	Bedpans, tongue depressors, exam gloves
882	Neurological	Reflex hammers, tuning forks
884	Obstetrical and Gynecological	OB/GYN manual instruments
886	Ophthalmic	Eye pads, trial lens sets
888	Orthopedic	Cast components, orthopedic instruments
890	Physical Medicine	Crutches, canes, exercise components
892	Radiology	X-ray film illuminators

Under Section 513(a)(1)(A) of the FD&C Act, a Class I device is one for which general controls are sufficient to provide reasonable assurance of the device's safety and effectiveness. This is a risk-based determination: if the FDA concludes that the baseline regulatory controls applicable to all devices are enough to manage the risks of a particular device type, that device is classified as Class I.

The FDA's Center for Devices and Radiological Health (CDRH) is the branch within FDA responsible for administering the classification system and regulating the vast majority of medical devices, including all Class I devices.

How to Confirm Your Device Is Class I

Before assuming your device is Class I, you must verify its classification. The FDA recognizes four methods for classifying a medical device, and you should use whichever combination gives you the most confidence in your determination.

Method 1: Product Classification Database (most common)

Search the FDA's Product Classification Database at accessdata.fda.gov/scripts/cdrh/cfdocs/cfPCD/classification.cfm.

1. Search by device name or keyword — Use generic terms (e.g., "tongue depressor," "bandage," "scalpel"), not brand names
2. Identify your product code — The three-letter alphanumeric identifier assigned to your device type
3. Check the classification — The "Device Class" field confirms whether the device is Class I, II, or III
4. Check the submission type — "510(k) Exempt" means no premarket notification is required; "510(k)" means one is required
5. Check GMP exemption status — The entry indicates whether the device is exempt from GMP requirements

Method 2: Classification Panel Regulations

Review the 16 medical specialty classification panels in 21 CFR Parts 862-892 directly. Each regulation section describes the device type, its intended use, and its classification. This method is useful when you need to verify that your device fits within the scope of a particular classification regulation — not just matching a product code name.

Method 3: Similar Devices by 510(k) Clearance or De Novo

Search the 510(k) Premarket Notification Database or the De Novo Decision Summaries for devices similar to yours. If a device substantially equivalent to yours has been cleared under a Class I product code, that supports your classification determination.

Method 4: Similar Devices by Device Listing

Search the Establishment Registration and Device Listing Database for similar devices listed by other manufacturers. If multiple manufacturers have listed similar devices under a Class I product code, that provides additional confidence in your classification.

If your device does not match any existing product code across any of these databases, it may be a novel device requiring a De Novo classification request — and novel devices are automatically assigned to Class III until classified otherwise. Do not assume a novel device is Class I simply because it seems low-risk.

The De Novo Pathway for Novel Class I Devices

When a truly novel device has no predicate but poses low risk, the De Novo classification process (Section 513(f)(2) of the FD&C Act) provides a pathway to establish a new Class I (or Class II) classification. This is significant because:

• Automatic Class III default: Under the statute, any device without an existing classification is automatically Class III. The De Novo process allows the manufacturer to petition for downclassification to Class I or Class II.
• New product code creation: When the FDA grants a De Novo request and classifies the device as Class I, a new product code and classification regulation are created. All future devices of that type can then be marketed under the new Class I classification.
• 510(k) exemption may be included: The FDA may designate the new Class I classification as 510(k) exempt, meaning future manufacturers of the same device type can market without any premarket submission.
• Growing pathway: The De Novo pathway has become increasingly important as novel low-risk technologies — particularly digital health tools and wellness devices — enter the market. Between 2018 and 2025, the FDA granted over 300 De Novo requests, with a meaningful proportion resulting in Class I classifications.

The De Novo process involves submitting a De Novo request (formerly called a "de novo petition") with a description of the device, proposed classification, proposed special controls (for Class II) or general controls rationale (for Class I), and supporting performance and safety data. The FDA's target review time for De Novo requests is 150 review days, though actual timelines vary.

General Controls: The Six Regulatory Requirements

General controls are the foundation of FDA medical device regulation. They apply to every medical device marketed in the United States — Class I, Class II, and Class III — unless the FDA explicitly grants an exemption. For Class I devices, general controls are typically the only regulatory controls that apply. Understanding them in detail is essential.

General controls are authorized by seven sections of the FD&C Act. Here is what each one requires and what it means in practice for Class I device manufacturers.

1. Adulteration Provisions (Section 501)

Section 501 of the FD&C Act defines the conditions under which a device is considered "adulterated." A device is adulterated if it consists, in whole or in part, of any filthy, putrid, or decomposed substance, or if it has been prepared, packed, or held under insanitary conditions whereby it may have been contaminated or rendered injurious to health. A device is also adulterated if it fails to conform to an applicable performance standard, or if the methods, facilities, or controls used for its manufacture, packing, storage, or installation do not conform to current good manufacturing practice (CGMP).

What this means for Class I manufacturers: Your manufacturing environment must be clean and controlled. Your raw materials must be of appropriate quality. If your device is manufactured under conditions that could contaminate it, the device is adulterated — regardless of whether it is a simple tongue depressor or a complex surgical instrument. The FDA can seize adulterated devices and issue Warning Letters without any premarket review having occurred.

2. Misbranding Provisions (Section 502)

Section 502 defines when a device is "misbranded." A device is misbranded if its labeling is false or misleading, if it is offered for sale under the name of another device, if required information is missing from the label, or if the labeling does not bear adequate directions for use and adequate warnings.

What this means for Class I manufacturers: Your labeling must be truthful, non-misleading, and complete. You must include the manufacturer's name and address, adequate directions for use, and any necessary warnings. If your device's labeling makes claims beyond what is supported — for example, if you market a manual examination glove as providing protection against specific pathogens without adequate evidence — the device is misbranded.

3. Device Registration and Listing (Section 510)

Section 510 of the FD&C Act requires manufacturers, contract manufacturers, repackagers, relabelers, specification developers, and importers to register their establishments with the FDA and list every device they commercially distribute. This section also establishes the premarket notification (510(k)) requirement, although most Class I devices are exempt from it.

What this means for Class I manufacturers: You must register your establishment with the FDA through the Unified Registration and Listing System (FURLS) and pay the annual registration fee ($11,423 for FY2026). You must list every Class I device you manufacture or distribute. Foreign establishments must also designate a US Agent. Registration and listing must be completed before you begin commercial distribution, and registration must be renewed annually between October 1 and December 31.

4. Banned Devices (Section 516)

Section 516 authorizes the FDA to ban a device that presents substantial deception or an unreasonable and substantial risk of illness or injury. A banned device cannot be legally marketed in the United States.

What this means for Class I manufacturers: While bans are rare, the authority exists. The FDA has used this provision historically for devices that posed clear risks without corresponding benefits. If the FDA determines that a Class I device type presents an unreasonable risk, it can be banned entirely.

5. Notification and Other Remedies (Section 518)

Section 518 gives the FDA authority to require device manufacturers to notify health professionals and patients of risks associated with a device, to order repairs, replacements, or refunds, and to mandate corrections and removals (recalls). Manufacturers must also report corrections and removals under 21 CFR Part 806.

What this means for Class I manufacturers: If you discover that a distributed device has a defect or poses a safety risk, you may be required to notify affected parties and correct the problem. Even if the FDA does not order a formal recall, you have an independent obligation to evaluate and act on safety information. Corrections and removals must be reported to the FDA unless the correction or removal was taken to address a minor violation that does not present a risk to health.

6. Records and Reports (Section 519)

Section 519 requires manufacturers to maintain records and submit reports to the FDA. The most significant reporting requirement is Medical Device Reporting (MDR) under 21 CFR Part 803, which requires manufacturers to report deaths, serious injuries, and malfunctions that could cause or contribute to death or serious injury. Section 519 also establishes unique device identification (UDI) requirements.

What this means for Class I manufacturers: You must have a complaint handling system in place. If you receive information that your device may have caused or contributed to a death or serious injury, you must submit an MDR report to the FDA within 30 calendar days (or within 5 work days for events requiring remedial action). You must also maintain records of all complaints and your evaluation of whether they are reportable events.

7. General Provisions (Section 520)

Section 520 provides miscellaneous authorities including the authority to restrict the sale, distribution, or use of a device, and the provisions governing custom devices, investigational device exemptions (IDEs), and humanitarian device exemptions (HDEs). For Class I manufacturers, the most relevant provision is the custom device exemption — a narrow exemption that allows a device created or modified specifically for an individual patient to bypass certain premarket and quality system requirements, subject to strict conditions.

What this means for Class I manufacturers: The custom device exemption is rarely used for Class I devices because most Class I devices are mass-produced generic products. However, if you manufacture custom orthopedic supports, specialized dental instruments, or other patient-specific Class I devices, understand the limitations of Section 520(b) — the exemption has strict volume caps (no more than 5 units per year of a particular type), requires a physician's order, and mandates specific record-keeping.

Summary of General Controls at a Glance

General Control	FD&C Act Section	Key Regulation	Core Obligation
Adulteration	501	21 CFR Part 820 (QMSR)	Clean manufacturing, quality materials
Misbranding	502	21 CFR Part 801	Truthful, complete labeling
Registration & Listing	510	21 CFR Part 807	Register establishments, list devices annually
Banned Devices	516	—	Do not market banned device types
Notification & Remedies	518	21 CFR Part 806	Report corrections and removals
Records & Reports	519	21 CFR Part 803	MDR reporting, complaint files, UDI
General Provisions	520	Various	Custom devices, IDEs, restricted devices

Practical tip: Do not assume that because your device is Class I, your regulatory obligations are minimal. The general controls listed above apply to every Class I device unless an explicit exemption exists. Establishment registration alone requires annual fees and ongoing listing maintenance. MDR reporting requires a complaint-handling system capable of identifying reportable events. Labeling must be accurate, complete, and updated. These are not optional activities — they are legal requirements, and the FDA enforces them.

"Approved" vs. "Cleared" vs. "Listed" — Getting the Terminology Right

One of the most common mistakes manufacturers (and marketers) make is saying their Class I device is "FDA approved." This is incorrect for virtually all Class I devices, and using the wrong term can trigger FDA enforcement action for misbranding.

The FDA recognizes three distinct marketing authorization statuses, and each carries a specific legal meaning:

Term	What It Means	Applies To	Legal Basis
FDA Approved	The device has undergone Premarket Approval (PMA), the most rigorous FDA review process including clinical trial data	Class III devices only	Section 515 of the FD&C Act
FDA Cleared	The device has received 510(k) clearance by demonstrating substantial equivalence to a legally marketed predicate device	Class II devices (most) and the ~5% of Class I devices requiring 510(k)	Section 510(k) of the FD&C Act
FDA Listed	The device is registered and listed in the FDA's establishment registration and device listing database; no premarket submission was required	510(k)-exempt Class I devices	Section 510 of the FD&C Act
FDA Granted	The device received marketing authorization through the De Novo classification process	Novel devices classified as Class I or II through De Novo	Section 513(f)(2) of the FD&C Act

Why this matters: If you market a 510(k)-exempt Class I device as "FDA approved" or "FDA cleared" on your labeling, website, or promotional materials, the FDA may consider the device misbranded. The FDA has issued Warning Letters to companies for using "FDA approved" when the device was only listed or cleared. The correct statement for most Class I devices is that the device is "registered and listed with the FDA" or simply that it "meets all applicable FDA requirements."

Practical tip: Review all marketing materials, e-commerce listings, and sales collateral for incorrect FDA terminology. Remove any references to "FDA approved" or "FDA cleared" unless your specific Class I device actually went through the 510(k) process and received clearance. When customers or distributors ask whether your device is "FDA approved," educate them on the correct terminology — it demonstrates regulatory competence and prevents compliance problems.

510(k) Exemption for Class I Devices

The 510(k) premarket notification is the best-known FDA submission pathway, but most Class I device manufacturers will never file one. Approximately 95% of Class I device types are exempt from the 510(k) requirement. This means you can legally begin marketing these devices without submitting any premarket notification to the FDA — as long as you comply with all other applicable general controls.

How Exemption Works

The 510(k) exemption status of a device is determined by its product code in the FDA's Product Classification Database. Each product code entry specifies whether the device type requires a 510(k), is 510(k) exempt, or requires a PMA. When you look up your device's product code, the "Submission Type" field tells you the answer.

For Class I devices, the exemption is codified in the classification regulations at 21 CFR Parts 862 through 892. Each part contains a section titled "Limitations of exemptions from section 510(k)" (e.g., 21 CFR 862.9, 21 CFR 864.9, 21 CFR 868.9). These limitation sections establish the boundaries of the exemption.

Limitations on 510(k) Exemptions

Even for exempt device types, the exemption has limits. Under 21 CFR 862.9 (and the equivalent .9 sections in each device-specific part), a 510(k) exemption applies only to the extent that the device:

1. Has existing or reasonably foreseeable characteristics of commercially distributed devices within that generic type
2. Does not have a different intended use than the intended use described in the classification regulation
3. Does not operate using a different fundamental scientific technology than devices already in that generic device type

If any of these limitations apply — if your device uses a novel technology, targets a different intended use, or has characteristics not reasonably foreseeable within the generic type — you must submit a 510(k) even if the product code is listed as exempt.

Example 1: A basic elastic bandage (product code FYA) is 510(k) exempt. But if you develop an elastic bandage incorporating antimicrobial agents released into the wound, that device uses a different technology and potentially has a different intended use. The exemption would not apply, and you would need to submit a 510(k) — or potentially pursue a different regulatory pathway entirely (the antimicrobial component could make it a drug-device combination product).

Example 2: A manual dental mirror (product code EIC) is 510(k) exempt. But if you develop a dental mirror with an integrated LED light and digital camera that transmits images to a computer for analysis, this device operates using a fundamentally different scientific technology. The exemption would not cover it.

Example 3: A clinical mercury thermometer (product code FLL) is 510(k) exempt. But if you develop a thermometer that uses infrared sensing technology and includes software algorithms to calculate core body temperature from a temporal artery reading, the fundamental scientific technology limitation applies and a 510(k) would be required.

The 2019 Exemption Expansion

In December 2019, the FDA published a final order (84 FR 71808) exempting additional Class I and Class II devices from 510(k) requirements. This order expanded the number of exempt device types across multiple medical specialty panels. Before this order, approximately 572 Class I device types were exempt. After the order, the number of exempt Class I devices increased to approximately 740 of the roughly 780 Class I device types.

If you are reviewing older regulatory guidance that references Class I 510(k) requirements, verify the current exemption status — your device type may have been exempted since that guidance was published.

Class I Devices That Still Require 510(k)

Approximately 40 Class I device types still require 510(k) premarket notification. These tend to be devices with specific safety concerns despite their overall low-risk classification. Notable categories include:

Category	Example Devices	Why 510(k) Is Required
Surgical instruments with infection risk	Certain powered surgical instruments, specialized scalpels	Direct tissue contact, sterilization concerns
Diagnostic devices affecting clinical decisions	Certain clinical chemistry reagents, hematology devices	Misdiagnosis risk if device fails
Devices with software	Certain software-controlled Class I devices	Software failures can affect safety
Dental devices	Certain dental instruments and materials	Direct patient contact in oral cavity
Obstetrical/Gynecological devices	Certain OB/GYN manual instruments	Contact with sensitive tissues

To determine whether your specific device type requires a 510(k), look up the product code in the FDA Product Classification Database. The "Submission Type" field will indicate "510(k) Exempt" or "510(k)."

Practical tip: Even if your device is 510(k) exempt, document your exemption determination in a regulatory file. If the FDA inspects your facility or questions your marketing status, you need evidence that you evaluated the exemption criteria, identified your product code, confirmed the exemption applies to your specific device, and verified that none of the limitation conditions apply. This determination should be a controlled document within your quality system.

Design Control Exemption for Class I

Design controls — the systematic process of design planning, design input, design output, design review, design verification, design validation, and design transfer defined in 21 CFR 820.30 (and now clause 7.3 of ISO 13485:2016 under the QMSR) — are a core requirement for Class II and Class III devices. Most Class I devices are exempt from design controls.

What "Design Control Exempt" Means

When a Class I device is exempt from design controls, you are not required to maintain formal design input/output documentation, conduct structured design reviews, perform documented design verification and validation, or maintain a Design History File (DHF). This exemption reflects the FDA's determination that the risks of these simple, well-understood devices can be adequately managed through manufacturing controls alone.

Class I Devices That DO Require Design Controls

There are specific Class I devices that must comply with design controls despite their Class I classification. Under 21 CFR 820.30(a)(2), design controls apply to the following Class I device types:

• Devices automated with computer software — Any Class I device that incorporates software must comply with design controls, regardless of the device type. This is a critical category because as software increasingly appears in traditionally simple devices, more Class I products fall under design control requirements.
• Tracheobronchial suction catheters (product code BYC) — These devices contact airways and present aspiration and infection risks.
• Surgeon's gloves (product code LYN) — Critical barrier devices where manufacturing defects can lead to cross-contamination.
• Protective restraints (product code BRG) — Devices used to restrain patients, where design failures can cause injury or death.
• Manual radionuclide applicator system (product code JJC) — Involves radioactive materials requiring precise design.
• Radionuclide teletherapy source (product code IXA) — Also involves radioactive materials.

The Case for Voluntary Design Controls

Even when design controls are not required, many experienced regulatory professionals recommend implementing them voluntarily for Class I devices. The reasoning is practical:

1. Design controls reduce product failures. A systematic design process catches problems before manufacturing, regardless of device class.
2. International market access often requires them. If you plan to sell in the EU under MDR, or in markets that require ISO 13485 certification, you will need design and development documentation for all device classes.
3. Reclassification risk. If your device is reclassified from Class I to Class II — whether through FDA action or because you modify its intended use — you will need design controls retroactively. Having them already in place saves significant effort.
4. Liability protection. In product liability litigation, evidence of a structured design process demonstrates that you exercised reasonable care in developing the device.

Practical tip: If your Class I device incorporates any software — even a simple microcontroller for temperature measurement, a Bluetooth module for data transfer, or firmware that controls device operation — design controls apply. The software provision in 21 CFR 820.30(a)(2) is broadly written and captures many devices that manufacturers assume are exempt. Verify your device's software status before concluding that design controls do not apply.

Software as a Medical Device (SaMD) and Class I

The intersection of software and Class I devices deserves special attention because it is an area of rapid change and frequent regulatory misunderstanding.

Stand-alone software that is Class I: Some software qualifies as a Class I medical device on its own — not as a component of a hardware device, but as an independent Software as a Medical Device (SaMD). Examples include certain clinical data management software, simple calculation tools that do not provide diagnostic recommendations, and software that stores or transfers medical images without interpreting them. These are classified based on the FDA's risk framework for SaMD, which considers the significance of the information provided and the healthcare situation in which it is used.

Hardware devices with embedded software: When a traditionally "simple" Class I device — such as a thermometer, a patient scale, or an exercise device — incorporates software (firmware, Bluetooth connectivity, data-logging microcontrollers, companion mobile apps), the design control exemption no longer applies. The entire device, not just the software component, becomes subject to design controls under the QMSR. This catches many manufacturers by surprise, particularly those adding "smart" features to well-established Class I products.

Key software-related regulatory considerations for Class I:

Consideration	Impact
Design controls become mandatory	Must implement full design planning, input/output, verification, validation, and DHF documentation
Software documentation	FDA expects software development lifecycle documentation, including software requirements, architecture, risk analysis, and testing
Cybersecurity	If the device connects to a network, hospital system, or the internet, the FDA's cybersecurity guidance applies — even for Class I devices
Software validation	All software used in the quality system (manufacturing, complaint handling, etc.) must be validated per the QMSR, regardless of device class
510(k) exemption limitations	If software introduces a "different fundamental scientific technology," the 510(k) exemption may not apply even if the underlying device type is exempt

Practical tip: Before adding any digital capability to a Class I device — wireless connectivity, a companion app, data logging, cloud integration — consult the FDA's guidance on Software as a Medical Device and the cybersecurity premarket guidance. What seems like a simple feature addition can fundamentally change your regulatory obligations, moving your device from "no premarket submission, no design controls" to "510(k) required, full design controls, cybersecurity documentation."

GMP and QMSR Requirements for Class I Devices

The FDA's quality system requirements for medical devices have undergone a major transition. The former Quality System Regulation (QSR) under 21 CFR Part 820 has been replaced by the Quality Management System Regulation (QMSR), which became effective on February 2, 2026. The QMSR incorporates ISO 13485:2016 by reference, meaning FDA now expects compliance with the ISO standard rather than the legacy prescriptive requirements of the old QSR.

What Applies to Class I Devices

The QMSR applies to the design, manufacture, packaging, labeling, storage, installation, and servicing of all finished devices intended for human use. However, the level of application varies by device class and exemption status.

GMP-exempt Class I devices: Many Class I device types are exempt from most quality system requirements. You can check your device's GMP exemption status in the Product Classification Database — the entry will indicate whether the device is "GMP Exempt." However, even GMP-exempt devices must comply with the following minimum requirements:

Requirement	CFR Reference	What It Requires
Complaint handling	21 CFR 820.35 / ISO 13485 clause 8.2.2	Maintain and process complaint files; evaluate each complaint to determine if it is an MDR-reportable event
Recordkeeping	21 CFR 820.35	Maintain records required by general controls, including complaint files
Corrections and removals	21 CFR Part 806	Report corrections and removals to the FDA
Medical Device Reporting	21 CFR Part 803	Report deaths, serious injuries, and malfunctions

Non-exempt Class I devices: Class I devices that are not GMP-exempt must comply with the full QMSR, including:

• Quality management system documentation (quality manual, procedures, records)
• Management responsibility and resource management
• Purchasing controls for materials and components
• Production and process controls
• Control of monitoring and measuring equipment
• Corrective and preventive action (CAPA)
• Complaint handling and MDR reporting

What GMP-Exempt Actually Looks Like in Practice

To illustrate the practical difference between GMP-exempt and non-exempt Class I devices, consider two examples:

GMP-exempt example — Tongue depressors (product code EKM): A tongue depressor manufacturer must maintain complaint files, evaluate complaints for MDR reportability, and keep records. They do not need a formal quality manual, documented purchasing controls, production process validation, or calibration program for monitoring and measuring equipment. Their manufacturing still must meet the adulteration provisions (Section 501) — the facility must be clean and the raw materials appropriate — but the prescriptive quality system documentation requirements do not apply.

Non-GMP-exempt example — Surgeon's gloves (product code LYN): A surgeon's glove manufacturer must comply with the full QMSR, including design controls, purchasing controls, production and process controls (including sterilization validation), calibration, CAPA, and comprehensive documentation. The quality system obligations for this Class I device are essentially the same as for a Class II device.

Design Controls Under QMSR

The QMSR maintains the same design control exemptions as the former QSR. Under the QMSR, most Class I devices are exempt from clause 7.3 of ISO 13485:2016 (Design and Development), with the same exceptions listed above — devices with software, tracheobronchial suction catheters, surgeon's gloves, protective restraints, manual radionuclide applicator systems, and radionuclide teletherapy sources.

Impact of the QSR-to-QMSR Transition on Class I Manufacturers

The QMSR became effective on February 2, 2026. For Class I manufacturers, the key changes are:

• ISO 13485:2016 is now the referenced standard. If you are a non-GMP-exempt Class I manufacturer, your quality system must conform to ISO 13485:2016 rather than the legacy prescriptive QSR requirements. In practice, this means your quality manual, procedures, and records should reference ISO 13485 clause numbers rather than QSR section numbers.
• The exemption structure is preserved. The QMSR does not create new quality system obligations for previously GMP-exempt Class I devices. If your device was GMP-exempt under the old QSR, it remains exempt under the QMSR.
• Complaint handling requirements are unchanged. The minimum obligation to maintain complaint files and evaluate complaints for MDR reportability continues to apply to all manufacturers, including GMP-exempt Class I manufacturers.
• If you already have ISO 13485 certification, the transition should be minimal — you are already compliant with the referenced standard. The additional FDA-specific requirements (UDI, traceability, MDR reporting) layer on top of ISO 13485.

Additional FDA-Specific Requirements Beyond ISO 13485

The QMSR includes several FDA-specific requirements that go beyond ISO 13485:2016:

• Unique Device Identification (UDI): Compliance with 21 CFR Part 830 for the UDI system. For Class I devices, the UDI is not required to include a production identifier, but the device identifier (DI) portion is still required for most devices.
• Traceability: Compliance with 21 CFR Part 821 for medical device tracking, where applicable.
• Reporting: Compliance with 21 CFR Parts 803 (MDR) and 806 (corrections and removals) for reporting to the FDA.

Practical tip: If your Class I device is GMP-exempt, do not assume you have zero quality system obligations. You still need a complaint-handling process, you still need to evaluate complaints for MDR reportability, and you still need to maintain records. Many FDA inspections of Class I manufacturers focus specifically on complaint handling and MDR compliance — and finding that a manufacturer has no complaint-handling system is a common 483 observation.

Establishment Registration and Device Listing

Every manufacturer, contract manufacturer, repackager, relabeler, specification developer, and initial importer of Class I devices must register with the FDA and list their devices before beginning commercial distribution. This is not optional and applies regardless of whether the device is 510(k) exempt.

How to Register

Registration is completed through the FDA's FURLS (FDA Unified Registration and Listing System) via the CDRH Portal. Beginning August 1, 2025, establishments must use Form FDA 3602N submitted through the CDRH Portal. This replaces the previous Forms 3602 and 3602A.

Annual registration fee (FY2026): $11,423 per establishment. This fee applies to domestic and foreign establishments alike.

Foreign establishments: If you manufacture Class I devices outside the United States for import into the US market, you must register your foreign establishment, designate a US Agent, and list your devices. The US Agent serves as a point of contact between the FDA and the foreign establishment and must be physically located in the United States.

Device Listing Requirements

After registering your establishment, you must list each device you manufacture or distribute. Device listing requires:

• Proprietary (trade) name of the device
• Establishment registration number of each establishment involved in the device's manufacture, processing, or distribution
• Product code (the three-letter FDA classification code)
• Activities performed at each establishment (manufacture, specification development, repackaging, relabeling, etc.)

Device listing is a one-time activity for each device, but you must update the listing if any information changes — for example, if you add a new proprietary name, change the manufacturing facility, or discontinue a device.

Who Must Register

Not everyone in the supply chain has the same obligations. Here is who must register and who does not:

Entity	Must Register?	Must List Devices?	Notes
Domestic manufacturer	Yes	Yes	Even if only manufacturing for another company
Contract manufacturer	Yes	Yes	Must list devices they manufacture
Specification developer	Yes	Yes	The entity that controls the device specifications but does not physically manufacture
Initial importer	Yes	Yes	First US entity to receive a foreign-made device
Repackager / Relabeler	Yes	Yes	Even if only changing the outer packaging
Foreign manufacturer	Yes	Yes	Must also designate a US Agent
Distributor only	No	No	Unless they repackage, relabel, or change the device
End user (hospital, clinic)	No	No	Users do not register

Registration Timeline

Action	Deadline
Initial registration	Before beginning commercial distribution
Annual renewal	October 1 through December 31 each year
Device listing	Before beginning commercial distribution
Listing updates	Within 30 days of any change
Annual registration fee payment	At the time of registration or renewal

Consequences of Non-Registration

Failure to register your establishment and list your devices is a violation of Section 510 of the FD&C Act. Consequences include:

• For domestic manufacturers: FDA Warning Letters, injunctions, and potential seizure of devices
• For foreign manufacturers: Import alerts (devices are automatically detained at the border), refusal of admission for all shipments, and inability to legally market devices in the US
• For initial importers: Liability for importing devices from unregistered foreign establishments, potential Warning Letters, and enforcement action

The FDA maintains a public database of registered establishments at accessdata.fda.gov. Hospitals, distributors, and procurement organizations can verify registration status, and many do.

Practical tip: Do not wait until you have your first purchase order to register and list your device. The FDA expects registration and listing to be completed before commercial distribution begins. If you are a foreign manufacturer and your devices are detained at US Customs, one of the first things the FDA checks is whether your establishment is registered and your devices are listed. An unregistered establishment is an immediate red flag that can lead to an import alert.

Labeling Requirements for Class I Devices

All medical devices, including Class I devices, must comply with the labeling requirements of 21 CFR Part 801 and the misbranding provisions of Section 502 of the FD&C Act. "Labeling" in FDA terminology is broader than just the label on the package — it includes all written, printed, or graphic matter on the device or any of its containers or wrappers, as well as materials that accompany the device (instructions for use, promotional materials, websites, etc.).

Required Label Elements

Every Class I device label must include:

Element	Requirement	CFR Reference
Statement of identity	Common or usual name of the device, or an established descriptive name	21 CFR 801.1
Manufacturer name and address	Name and place of business of the manufacturer, packer, or distributor	21 CFR 801.1
Net quantity	Net quantity of contents (for packaged devices)	21 CFR 801.2
Adequate directions for use	Directions sufficient for the lay person or healthcare professional to use the device safely and for its intended purposes	21 CFR 801.5
Adequate warnings	Warnings against unsafe use, where safety of the device requires it	21 CFR 801.4, 801.109
Unique Device Identifier (UDI)	UDI on the device label (for most devices; certain low-risk Class I devices may be exempt)	21 CFR Part 801, Subpart B

UDI Requirements for Class I

The UDI system requires most medical devices to bear a unique device identifier on their label and packaging. For Class I devices:

• The device identifier (DI) portion of the UDI is generally required
• The production identifier (PI) — which includes lot number, serial number, manufacturing date, or expiration date — is not required for Class I devices unless the device is provided sterile or has an expiration date
• Class I devices that are direct-marked (the UDI is permanently marked on the device itself) follow different requirements, and certain Class I devices may be exempt from direct marking

OTC Labeling Requirements

Class I devices sold over the counter (OTC) — directly to consumers without a prescription — have additional labeling requirements under 21 CFR Part 801, Subpart C. OTC device labeling must include:

• "For OTC use" or equivalent statement — Making clear the device is intended for consumer use
• Lay-friendly directions — Directions for use must be written in language that a person without medical training can understand
• Prominent warnings — Any warnings must be displayed conspicuously and in terms the average consumer can comprehend
• Contact information — Phone number or address for consumer questions or complaints

Many common Class I devices are OTC products: bandages, thermometers, dental floss, toothbrushes, ice bags, arm slings, and similar consumer health items. If your Class I device is sold in retail channels, ensure your labeling meets both the general labeling requirements and the OTC-specific requirements.

Common Labeling Mistakes for Class I Devices

• Missing intended use statement: Even for simple devices, the labeling must clearly communicate what the device is intended to do. Vague or missing intended use statements constitute misbranding.
• Overly broad claims: If your labeling implies the device is effective for purposes beyond its classification, you risk misbranding — or worse, the FDA may determine the device is a different (higher-class) device entirely. For example, labeling a general-purpose elastic bandage with claims about treating specific medical conditions could push the device into a higher classification.
• Missing manufacturer identification: Every device must identify the manufacturer, packer, or distributor. Private-label (OEM) arrangements do not eliminate this requirement — the entity responsible for the labeling must be identified.
• Failure to update labeling: If your device's intended use, warnings, or directions change, your labeling must be updated. Distributing devices with outdated labeling is misbranding.
• Promotional materials inconsistent with labeling: Websites, brochures, and social media posts are considered "labeling" or "advertising" by the FDA. If your promotional materials make claims that exceed or contradict your device's cleared or classified intended use, the device may be considered misbranded or even an unapproved new device.
• Foreign-language-only labeling: All labeling for devices marketed in the US must include English. Bilingual labeling is acceptable, but English must be present.

Medical Device Reporting (MDR) Obligations

MDR requirements under 21 CFR Part 803 apply to all medical device manufacturers, importers, and device user facilities — regardless of device class. Class I device manufacturers have the same MDR obligations as Class II and Class III manufacturers.

What Must Be Reported

Event Type	Reporting Obligation	Timeline
Death	Manufacturer must report to FDA	Within 30 calendar days of becoming aware
Serious injury	Manufacturer must report to FDA	Within 30 calendar days of becoming aware
Malfunction	Manufacturer must report if the malfunction would be likely to cause or contribute to a death or serious injury if it were to recur	Within 30 calendar days of becoming aware
Events requiring remedial action	Manufacturer must submit a 5-day report	Within 5 work days

How to Submit MDR Reports

MDR reports must be submitted electronically to the FDA. Manufacturers and importers use the FDA's electronic MDR (eMDR) system, which accepts reports through the FDA Electronic Submissions Gateway (ESG) or the eSubmitter tool. Paper submissions (MedWatch Form 3500A) are no longer accepted from manufacturers and importers — electronic submission has been mandatory since August 14, 2015.

Complaint Handling as the Foundation of MDR

Your complaint-handling system is the mechanism through which you identify MDR-reportable events. Every complaint must be evaluated to determine whether it represents a reportable death, serious injury, or malfunction. This evaluation must be documented. If you determine that a complaint is not reportable, you must document the rationale for that determination.

A functional complaint-handling system for a Class I device manufacturer needs, at minimum:

• A documented procedure for receiving, logging, and evaluating complaints
• A defined evaluation process to determine whether each complaint is MDR-reportable
• Designated personnel responsible for complaint evaluation and MDR submission
• Timely evaluation — complaints must be evaluated promptly enough to meet MDR reporting timelines (30 calendar days from awareness)
• Record retention — complaint records and MDR evaluation records must be maintained for the expected life of the device, but in no case less than 2 years from the date of release for commercial distribution

Real-World Class I MDR Scenarios

To make this concrete, here are scenarios where Class I device manufacturers would need to file MDR reports:

• A patient is cut by a defective scalpel blade that breaks during a procedure. The malfunction (blade fracture) contributed to a serious injury. The manufacturer must file an MDR report within 30 calendar days.
• An elastic bandage applies excessive compression due to a manufacturing defect, causing tissue necrosis. The device malfunction contributed to a serious injury. Reportable.
• A tongue depressor splinters during use and a fragment lodges in a patient's throat. The malfunction could cause or contribute to serious injury. Reportable.
• Examination gloves have microscopic pinholes, and a healthcare worker contracts an infection from a patient. If the manufacturer becomes aware of this event, the malfunction (barrier failure) contributed to a serious injury. Reportable.
• A patient trips over a manual wheelchair that was not properly assembled. If the manufacturer becomes aware that their device may have caused or contributed to the injury, it is reportable.

Practical tip: The most common MDR compliance failure among Class I manufacturers is not having a complaint-handling system at all. Many small manufacturers of low-risk devices assume that MDR does not apply to them because their device is "simple." It does. If a patient is injured by your tongue depressor, elastic bandage, or manual surgical instrument, you must report it. Build a complaint-handling process proportionate to your device's risk — it does not need to be complex, but it must exist and must be documented.

Beyond MDR: Additional Post-Market Obligations

While MDR is the primary post-market reporting requirement, Class I manufacturers should be aware of several additional post-market obligations:

Trend reporting: Under 21 CFR 803.53, manufacturers must report to the FDA when they identify a trend — an increase in the frequency of MDR-reportable events that represents a meaningful increase over what would be expected. While trend reporting is more commonly associated with higher-risk devices, the obligation applies to all manufacturers, including those of Class I devices. A sudden increase in complaints about examination glove barrier failures or scalpel blade fractures could trigger trend reporting obligations.

Voluntary recalls and corrections: Not all product corrections are mandatory. If you identify a quality issue with your Class I device — for example, a labeling error, a packaging defect, or a manufacturing deviation — you may initiate a voluntary recall or correction. Under 21 CFR Part 806, you must report the correction or removal to the FDA within 10 working days, unless the correction involves a minor violation that does not present a risk to health. The FDA's MedWatch system and the recall database track all reported corrections and removals.

Post-market surveillance orders: Under Section 522 of the FD&C Act, the FDA can order post-market surveillance studies for any device. While 522 orders are rare for Class I devices, the authority exists. If the FDA identifies an emerging safety concern with a Class I device type, it can require manufacturers to conduct organized surveillance to gather real-world performance data.

MAUDE database monitoring: The FDA's Manufacturer and User Facility Device Experience (MAUDE) database contains all MDR reports submitted by manufacturers, importers, and device user facilities. Monitoring MAUDE for reports related to your device type — even reports submitted by other manufacturers — is a best practice that helps you identify emerging safety signals and anticipate potential FDA action.

Major Categories of Class I Devices with Examples

Class I devices span virtually every medical specialty recognized by the FDA. Below is an extensive breakdown of Class I device categories organized by the 16 medical specialty panels defined in 21 CFR Parts 862 through 892.

General Hospital Devices (21 CFR Part 880)

This is one of the largest Class I categories. Examples include:

• Bedpans and urinals — Reusable patient care items
• Hospital beds (manual) — Non-powered patient beds
• Examination gowns and drapes — Disposable patient coverings
• Ice bags and hot water bottles — Thermal therapy devices
• Patient scales — Manual weighing devices
• Elastic bandages — Compression and wound care
• Tongue depressors — Wooden examination instruments
• Arm slings — Musculoskeletal support devices
• Medical examination gloves — Barrier protection for healthcare workers

General and Plastic Surgery (21 CFR Part 878)

• Nonabsorbable gauze and sponges — Wound care materials
• Wound closure strips (butterfly bandages) — Adhesive skin closures
• Manual surgical instruments — Scalpels, forceps, retractors, scissors, hemostats, needle holders
• Surgical towels and drapes — Sterile field maintenance
• Skin staple removers — Post-surgical care

Dental Devices (21 CFR Part 872)

• Dental hand instruments — Explorers, scalers, curettes, excavators
• Dental floss — Oral hygiene devices
• Dental impression trays — Impression-taking accessories
• Dental mirrors — Oral examination instruments
• Irrigating dental syringes — Non-powered irrigation devices
• Dental bibs — Patient protection during procedures

Ophthalmic Devices (21 CFR Part 886)

• Eye pads — Protective eye coverings
• Ophthalmic trial lens sets — Refraction testing equipment
• Ophthalmic lens gauges — Optical measurement instruments
• Manual ophthalmic surgical instruments — Specialized eye surgery tools

Ear, Nose, and Throat Devices (21 CFR Part 874)

• ENT manual surgical instruments — Nasal speculums, ear curettes, laryngeal mirrors
• Ear plugs — Hearing protection devices
• Nasal splints — Post-surgical nasal support
• Tonsil sponges — Oral/pharyngeal care

Orthopedic Devices (21 CFR Part 888)

• Cast components — Plaster and fiberglass casting materials
• Casting padding — Protective layers under casts
• Orthopedic manual surgical instruments — Bone-specific hand tools
• External limb prosthesis components — Certain non-powered prosthetic parts

Physical Medicine Devices (21 CFR Part 890)

• Exercise components — Pulleys, weights, and exercise equipment used in rehabilitation
• Crutches — Ambulation assistive devices
• Canes — Walking support devices
• Manual wheelchairs — Non-powered mobility devices

Cardiovascular Devices (21 CFR Part 870)

• Electrode cables and lead wires — Connections for monitoring equipment
• Stethoscopes — Manual auscultation instruments
• Blood pressure cuff accessories — Non-powered cuff components

Anesthesiology Devices (21 CFR Part 868)

• Tracheobronchial suction catheters — Airway clearance devices (note: these require design controls)
• Oxygen masks — Non-powered oxygen delivery devices
• Nasal cannulas — Oxygen delivery accessories

Gastroenterology and Urology Devices (21 CFR Part 876)

• Enema kits — Bowel preparation devices
• Colostomy irrigation devices — Ostomy care accessories
• Urological manual surgical instruments — Specialized urological tools

Neurological Devices (21 CFR Part 882)

• Neurological examination instruments — Reflex hammers, tuning forks, pinwheels
• Skull plate anvils and accessories — Craniotomy instruments

Obstetrical and Gynecological Devices (21 CFR Part 884)

• OB/GYN manual surgical instruments — Speculums, forceps, dilators
• Breast pump accessories — Non-powered components
• Maternity support belts — Pregnancy support devices

Clinical Chemistry and Hematology Devices (21 CFR Parts 862, 864)

• Urinary pH test strips — Simple point-of-care diagnostics
• Blood grouping reagents — Immunohematology reagents
• Manual cell counting devices — Hemocytometers
• Certain IVD accessories — Non-critical laboratory accessories
• Specimen collection containers — Blood tubes, urine cups
• Microscope slides and cover slips — Pathology laboratory consumables

Immunology and Microbiology Devices (21 CFR Part 866)

• Culture media — Microbiological growth substrates
• Staining kits — Microscopy preparation reagents
• Sensitivity discs — Antimicrobial susceptibility testing components
• Microbiological specimen collection devices — Swabs, transport media

Radiology Devices (21 CFR Part 892)

• X-ray film illuminators — Lightboxes for viewing radiographic film
• Radiographic film markers — Lead letter and number markers
• X-ray cassette holders — Film cassette positioning devices
• Darkroom accessories — Film processing equipment components

Devices That Surprise People as Class I

Some devices that seem complex or clinically significant are actually classified as Class I:

Device	Product Code	Why It Surprises People
Stethoscope	BZS	It is used in clinical diagnosis, but the device itself is a simple acoustic instrument
Manual surgical retractor	GEI	Used in surgery, but the device is a passive, non-powered hand instrument
Mercury thermometer	FLK	Measures body temperature for clinical decisions, but the technology is well-understood
Surgical masks	FXX	Widely used in healthcare, but classified as a low-risk barrier device
Cervical collar	ISA	Used for spinal immobilization, but classified as a simple orthopedic support
Finger cot	KGO	Used in examinations, but is a simple barrier device
Irrigating syringe	FMF	Used in wound and dental irrigation, but is a simple non-powered device

Import and Export Considerations for Class I Devices

Importing Class I Devices into the United States

Foreign manufacturers seeking to market Class I devices in the United States must meet the same regulatory requirements as domestic manufacturers, plus additional import-specific obligations:

1. Foreign establishment registration: Register through FURLS and pay the annual registration fee
2. US Agent designation: Appoint a US Agent located within the United States who can serve as a point of contact for the FDA
3. Device listing: List all devices before importing
4. Labeling compliance: Labels must meet all 21 CFR Part 801 requirements, including English-language labeling
5. Import entry: Each shipment must be accompanied by proper Customs documentation; the FDA may examine, sample, or detain shipments at ports of entry
6. Initial importer responsibilities: The US initial importer (the first US entity that receives the foreign device) has its own registration, listing, and MDR reporting obligations

Common import problems for Class I devices:

Problem	Consequence	How to Avoid
Unregistered foreign establishment	Automatic detention at port of entry	Register before first shipment
Missing or incorrect device listing	FDA review triggers, potential refusal	List all devices before import
Labeling in foreign language only	Misbranding violation, refusal of admission	Include English labeling meeting 21 CFR Part 801
No designated US Agent	FDA cannot communicate with manufacturer	Appoint a US-based agent before registration
Device not cleared/exempt	Illegal marketing, seizure	Verify classification and exemption status
Non-compliant manufacturing	Adulteration, potential Warning Letter	Ensure CGMP compliance (if not GMP-exempt)

Exporting Class I Devices from the United States

Under Section 801(e) of the FD&C Act, any medical device that can be legally marketed in the United States may be exported without prior FDA notification or approval. For Class I devices that are 510(k) exempt and meet all general control requirements, export is straightforward — no additional FDA submission is needed.

For devices that cannot be legally marketed in the US — for example, devices that do not comply with US labeling requirements or are manufactured in facilities that do not meet CGMP — the FDA provides alternative export provisions under Sections 801(e)(1) and 802 of the FD&C Act. Under Section 802, a device can be exported even if it is not in compliance with US requirements, provided it meets the importing country's requirements and certain other conditions.

Certificates for Foreign Government (CFG): Many countries require a CFG (also called a Certificate to Foreign Government or Certificate of Free Sale) from the FDA as part of their import registration process. The FDA issues CFGs for devices that are legally marketed in the US. For Class I exempt devices, the FDA will issue a CFG upon request, provided the establishment is registered and the device is listed.

Practical tip: If you are a foreign manufacturer planning to export Class I devices to the US, the registration and listing process should begin at least 60–90 days before your planned market entry date. Foreign establishment registration can take time to process, especially if there are issues with the US Agent designation or the device listing information. Do not wait until product is sitting on a dock to start the regulatory process.

Class I vs. Class II vs. Class III: Comparison Table

Characteristic	Class I	Class II	Class III
Risk level	Low	Moderate	High
Percentage of device types	~47%	~43%	~10%
Regulatory controls	General controls only	General controls + special controls	General controls + PMA
Typical premarket pathway	Exempt (most) or 510(k)	510(k) (most) or exempt	PMA
510(k) required?	~5% of Class I types	Most (some exempt)	Rarely (pre-amendment only)
Design controls required?	Exempt for most (exceptions apply)	Yes	Yes
Clinical data typically required?	Rarely	Sometimes	Almost always
Quality system (QMSR) scope	Limited (many exempt from most requirements)	Full compliance	Full compliance
Establishment registration required?	Yes	Yes	Yes
Device listing required?	Yes	Yes	Yes
MDR reporting required?	Yes	Yes	Yes
Labeling requirements	Full (21 CFR Part 801)	Full (21 CFR Part 801) + special controls	Full (21 CFR Part 801) + PMA-specific
Annual registration fee (FY2026)	$11,423	$11,423	$11,423
510(k) user fee (FY2026)	$0 (if exempt) / $26,067	$26,067 (if 510(k) required)	N/A
PMA user fee (FY2026)	N/A	N/A	$579,272
Post-market surveillance	MDR only	MDR + possible special controls	MDR + PMA annual reports + possible post-approval studies
Examples	Bandages, tongue depressors, stethoscopes, bedpans	Infusion pumps, pulse oximeters, pregnancy tests, contact lenses	Heart valves, pacemakers, breast implants, cochlear implants

Common Misconceptions About Class I Devices

Misconception 1: "Class I means no regulation"

This is the most dangerous misconception. Class I devices are subject to general controls, which include establishment registration, device listing, labeling requirements, MDR reporting, CGMP requirements (unless exempt), and the adulteration and misbranding provisions of the FD&C Act. Non-compliance can result in Warning Letters, import alerts, seizures, and injunctions.

Misconception 2: "510(k) exempt means exempt from everything"

A 510(k) exemption means only that you do not need to submit a premarket notification before marketing your device. It does not exempt you from establishment registration, device listing, labeling requirements, MDR reporting, quality system requirements (unless separately GMP-exempt), or any other general control obligation.

Misconception 3: "GMP exempt means no quality system is needed"

Even GMP-exempt Class I devices must maintain complaint files (21 CFR 820.35) and comply with MDR reporting (21 CFR Part 803). Additionally, corrections and removals must be reported under 21 CFR Part 806. A manufacturer that has no complaint-handling process is in violation of federal law, regardless of GMP exemption status.

Misconception 4: "Class I devices don't get recalled"

Class I devices are recalled regularly. The FDA's recall database shows recalls of Class I devices for contamination, labeling errors, manufacturing defects, and sterility failures. In 2024 and 2025, recalls of Class I devices included examination gloves with quality defects, bandages with packaging integrity failures, and manual surgical instruments with material composition issues.

Misconception 5: "Foreign manufacturers of Class I devices don't need to register with FDA"

Every foreign establishment that manufactures, prepares, compounds, or processes Class I devices for import into the United States must register with the FDA, designate a US Agent, and list its devices. There is no exemption for foreign manufacturers based on device class.

Misconception 6: "My device is too simple to be a medical device"

If your product meets the definition of a medical device under Section 201(h) of the FD&C Act — it is intended for use in the diagnosis, cure, mitigation, treatment, or prevention of disease, or is intended to affect the structure or function of the body — it is a medical device regardless of its simplicity. Tongue depressors, toothbrushes, elastic bandages, and dental floss are all medical devices subject to FDA regulation.

Misconception 7: "I can sell my Class I device on Amazon or other e-commerce platforms without worrying about FDA"

Selling through e-commerce does not change your FDA obligations. You must still register your establishment, list your devices, comply with labeling requirements, and maintain a complaint-handling system. Additionally, e-commerce listings themselves can constitute "labeling" or "advertising" under FDA rules — meaning the product descriptions, claims, and images you use on Amazon, your website, or other platforms must be truthful, non-misleading, and consistent with your device's classified intended use. The FDA has issued Warning Letters to companies selling medical devices online with unsupported marketing claims.

Misconception 8: "A Class I device can't cause serious harm"

While Class I devices pose the lowest regulatory risk, they can absolutely cause serious patient harm if they are defective, contaminated, or misused. Contaminated surgical instruments can cause infections. Defective examination gloves can expose healthcare workers to bloodborne pathogens. Improperly designed protective restraints have caused patient deaths. The Class I designation reflects the risk level of a properly manufactured, correctly used device — it does not mean the device is incapable of causing harm if something goes wrong.

When Class I Devices Get Reclassified

Device classifications are not permanent. The FDA can reclassify devices when new evidence demonstrates that a different level of control is appropriate. Reclassification can move a device up or down the classification hierarchy.

Reclassification Mechanisms

Mechanism	Direction	How It Works
De Novo (Section 513(f)(2))	Automatic Class III down to Class I or II	Novel device without a predicate is classified into the appropriate risk class
FDA-initiated reclassification (Section 515(b))	Any direction	FDA issues a proposed order based on accumulated evidence
Petition-based reclassification (Section 513(e))	Any direction	Any person can petition the FDA with valid scientific evidence
Accessories Distinct Classification Initiative (2025)	Down to Class I	FDA initiative to reclassify accessories currently classified with higher-risk parent devices

When Upward Reclassification Happens

While most reclassifications move devices down the classification ladder, upward reclassification — from Class I to Class II or III — can occur when:

• New adverse event data emerges: If a Class I device type is associated with an unexpected pattern of serious injuries or deaths, the FDA may determine that general controls are insufficient and reclassify the device to Class II (requiring special controls) or Class III (requiring PMA).
• Technology changes: If a traditionally simple device type incorporates new technology that introduces new risks (e.g., software, wireless connectivity, novel materials), the FDA may reclassify the device or determine that the new version falls under a different, higher-class product code.
• Intended use expands: If manufacturers begin marketing a Class I device for higher-risk applications — for example, marketing a general-purpose thermometer as a diagnostic tool for specific disease conditions — the FDA may determine that the expanded intended use warrants a higher classification.

Practical Implications of Reclassification for Class I Manufacturers

If your Class I device is reclassified upward to Class II, the regulatory impact is significant:

Requirement	Before (Class I)	After (Class II)
Premarket pathway	Likely exempt	510(k) required
Design controls	Likely exempt	Required
Special controls	None	Device-specific guidance, performance standards
Quality system scope	Possibly GMP-exempt	Full QMSR compliance
User fees	Registration only ($11,423)	Registration ($11,423) + 510(k) ($26,067)
Review timeline	Immediate (no submission)	3-6 months for 510(k) review

The FDA provides a transition period when reclassification occurs — manufacturers of existing devices are typically given time to comply with new requirements. But new manufacturers entering after the reclassification must meet the higher-class requirements from day one.

Recent Classification Activity Affecting Class I

The FDA's Accessories Distinct Classification Initiative (December 2025) is particularly relevant to Class I devices. The FDA issued a request for public comment on existing medical device accessories that may be suitable for distinct classification into Class I. Many accessories are currently classified alongside their higher-risk parent devices (in Class II or III) even though the accessory itself poses minimal risk. If finalized, this initiative could reclassify numerous accessory device types into Class I with 510(k) exemption, expanding the universe of Class I devices and reducing regulatory burden for accessory manufacturers.

Additionally, the De Novo pathway continues to create new Class I classifications. When the FDA grants a De Novo request and classifies the device as Class I with general controls, a new product code is created and a new classification regulation is established. Future devices of the same type can then enter the market under the same Class I classification without a premarket submission (if the new classification includes 510(k) exemption).

FDA Enforcement Actions Against Class I Manufacturers

The FDA actively enforces compliance for Class I devices. The perception that the FDA does not inspect or take action against Class I manufacturers is incorrect. Here are the most common enforcement patterns:

Warning Letters

The FDA issues Warning Letters to Class I device manufacturers for violations including:

• Failure to register and list — Manufacturing or importing devices without proper establishment registration and device listing
• Labeling violations — Misbranding through false claims, missing required label elements, or inadequate directions for use
• Failure to file MDR reports — Not reporting deaths, serious injuries, or reportable malfunctions
• No complaint-handling system — Even GMP-exempt manufacturers must maintain complaint files
• Manufacturing under insanitary conditions — Adulteration violations related to facility cleanliness and manufacturing controls
• Marketing devices without required 510(k) — Selling a device that requires 510(k) clearance without obtaining it

Import Alerts

Import alerts are FDA's mechanism for detaining foreign-manufactured devices at the border without physical examination. Class I devices from foreign manufacturers are frequently subject to import alerts for:

• Unregistered foreign establishments
• Unlisted devices
• Previous history of GMP violations
• Labeling that does not meet US requirements

Once an import alert is issued, all shipments from the affected establishment are automatically detained. The burden shifts to the importer to demonstrate that the devices comply with FDA requirements — a process that can take weeks or months and may require facility inspections.

Recalls

Class I devices are recalled regularly. The term "Class I recall" (which refers to the severity of the recall, not the device class) can cause confusion, but devices classified as Class I in the regulatory sense are subject to recalls across all three recall severity levels:

• Class I recall (most serious): Reasonable probability that the use of the device will cause serious adverse health consequences or death
• Class II recall: Use of the device may cause temporary or medically reversible adverse health consequences, or the probability of serious adverse health consequences is remote
• Class III recall (least serious): Use of the device is not likely to cause adverse health consequences

Recent recall examples involving Class I-classified devices include examination gloves with manufacturing quality defects, surgical instruments with material integrity issues, and bandages with sterility failures.

Seizures and Injunctions

In severe or repeated non-compliance situations, the FDA can pursue:

• Seizure: The FDA requests a US Marshal to physically seize adulterated or misbranded devices. This can occur at manufacturing facilities, warehouses, or distribution centers. Seized devices cannot be sold and may be destroyed.
• Injunction: The FDA obtains a court order prohibiting a company from manufacturing or distributing devices until compliance is achieved. Injunctions can shut down an entire manufacturing operation and typically require a third-party audit before resuming production.
• Criminal prosecution: In cases of fraud, intentional misbranding, or knowing distribution of adulterated devices, the FDA can refer cases for criminal prosecution. Individuals — not just companies — can be prosecuted.

While seizures and injunctions are more commonly associated with higher-risk devices, the FDA has used these tools against Class I device manufacturers, particularly in cases involving contamination, fraudulent labeling, or persistent refusal to comply with registration and listing requirements.

Real-World Enforcement Examples

To illustrate the types of FDA enforcement actions that affect Class I manufacturers:

• Examination glove manufacturers have received Warning Letters for failure to report MDR events when gloves were found to have pinholes leading to healthcare worker exposure to bloodborne pathogens, and for manufacturing under insanitary conditions
• Surgical instrument manufacturers have been cited for marketing devices under product codes that did not match the actual device, effectively bypassing the correct classification and any required 510(k) submission
• Elastic bandage and wound care manufacturers have received import alerts when foreign establishments were not registered, devices were not listed, or labeling did not include English-language directions for use
• E-commerce sellers have received Warning Letters for selling devices with marketing claims that exceeded the classified intended use — for example, claiming that a simple bandage could "heal wounds faster" or "prevent infection" without adequate evidence

Practical tip: Monitor the FDA's enforcement action databases regularly. The Warning Letters database, recall database, and import alert database are all publicly available. Reviewing enforcement actions against manufacturers of devices similar to yours is one of the most effective ways to identify compliance gaps in your own operations before the FDA finds them. The FDA Warning Letters search, Recall database, and Import Alert database are all freely accessible online.

FDA Inspections of Class I Manufacturers

The FDA inspects Class I device manufacturers, though less frequently than Class II or III manufacturers. Understanding the inspection process — and what triggers one — helps you prepare and avoid findings.

Risk-Based Inspection Prioritization

The FDA uses a risk-based model to prioritize inspections. The agency does not maintain a fixed inspection schedule for any device class. Instead, the following factors determine whether your facility is selected for inspection:

Factor	How It Affects Priority
Device risk classification	Class III facilities are inspected most frequently; Class I least frequently
Compliance history	Facilities with prior 483 observations, Warning Letters, or recalls are inspected more frequently
Time since last inspection	Facilities not inspected in 4+ years receive higher priority
Adverse event signals	A spike in MDR reports or consumer complaints can trigger a for-cause inspection
Import status	Foreign manufacturers importing to the US may be inspected before initial shipment or after an import alert
Product type	Sterile devices, software devices, and devices with a history of quality problems across the industry receive higher attention

In practice, many small Class I manufacturers that are GMP-exempt and have clean compliance histories may go years without an FDA inspection. But this should not create complacency — when an inspection does occur, the FDA expects to find compliant systems in place.

Updated Inspection Process (Post-February 2026)

As of February 2, 2026, the FDA stopped using the Quality System Inspection Technique (QSIT) that had guided device inspections since 1999. Inspections now follow the updated Inspection of Medical Device Manufacturers Compliance Program (7382.850). Key changes include:

• Alignment with the QMSR: Inspectors now evaluate compliance against ISO 13485:2016 (incorporated by reference) rather than the legacy prescriptive QSR requirements
• Process-based approach: The new inspection model follows the process structure of ISO 13485 rather than the subsystem-based QSIT approach
• Same scope for exempt manufacturers: For GMP-exempt Class I manufacturers, inspectors still focus on complaint handling, MDR reporting, and the adulteration/misbranding provisions — the scope of what is inspectable has not expanded

What Inspectors Look for at Class I Facilities

For GMP-exempt Class I manufacturers, inspectors typically evaluate:

1. Establishment registration and device listing — Is the facility properly registered? Are all commercially distributed devices listed?
2. Complaint handling — Does the manufacturer have a documented complaint-handling procedure? Are complaints logged and evaluated?
3. MDR compliance — Are complaints evaluated for reportability? Have reportable events been submitted within required timelines?
4. Labeling — Is the labeling truthful, non-misleading, and complete? Does it include all required elements?
5. Manufacturing conditions — Is the facility clean? Are raw materials appropriate? Could the manufacturing environment contaminate the device? (Adulteration provisions apply regardless of GMP exemption)
6. Corrections and removals — Have any corrections or removals been properly reported under 21 CFR Part 806?

For non-GMP-exempt Class I manufacturers, the inspection scope expands to include the full quality management system: purchasing controls, production and process controls, CAPA, calibration, management review, and (if applicable) design controls.

Common Form 483 Observations for Class I Manufacturers

The most frequently cited observations during inspections of Class I facilities include:

• No complaint-handling procedure — The single most common finding, particularly among small manufacturers who assume their GMP-exempt status means no quality system obligations
• Failure to evaluate complaints for MDR reportability — Complaints are received but not evaluated against MDR criteria
• Incomplete or missing complaint records — Complaints received by phone or email are not logged
• Labeling deficiencies — Missing manufacturer identification, inadequate directions for use, or claims inconsistent with the classified intended use
• Unregistered establishment or unlisted devices — Particularly common among companies that began marketing before completing registration
• Manufacturing under insanitary conditions — Contamination concerns in manufacturing areas

Practical tip: Conduct a self-inspection annually using the FDA's publicly available compliance program guidance (7382.850). Walk through your facility with the same checklist an FDA investigator would use. Fix any issues before they become 483 observations. For GMP-exempt Class I manufacturers, this self-inspection can be completed in a single day — it is a small investment that can prevent significant enforcement consequences.

Small Business Considerations for Class I Devices

Small businesses manufacture a significant proportion of Class I devices, and the FDA provides certain accommodations for qualifying small businesses.

Small Business Fee Reductions

The FDA offers reduced user fees for qualifying small businesses:

Fee Type	Standard Fee (FY2026)	Small Business Fee (FY2026)	Qualification Criteria
Annual registration	$11,423	$11,423 (no reduction)	N/A — registration fee is the same for all
510(k) user fee	$26,067	$6,517 (75% reduction)	Gross receipts or sales ≤ $100 million in most recent tax year
PMA user fee	$579,272	$144,818 (75% reduction)	Same as above

To qualify for small business fees, you must submit an application through the FDA's Small Business Qualification portal before submitting your 510(k). Qualification must be renewed annually.

Note that the annual establishment registration fee is not reduced for small businesses — all manufacturers pay the same registration fee regardless of size.

Outsourced Manufacturing and Regulatory Responsibility

Many small Class I device companies use contract manufacturers rather than manufacturing in-house. Understanding the regulatory responsibilities in outsourced arrangements is critical:

• Specification developer: If you design the device and control its specifications but hire a contract manufacturer to produce it, you are the "specification developer" — you must register your own establishment, list the device, and are responsible for labeling, complaint handling, and MDR reporting. The contract manufacturer must also register separately and list the device.
• Contract manufacturer: The entity that physically manufactures the device must register its own establishment and list the devices it manufactures. The contract manufacturer has its own CGMP obligations (if the device is not GMP-exempt) and its own MDR reporting obligations for events it becomes aware of.
• Private label (OEM) arrangements: If you put your brand name on a device manufactured by another company, you are responsible for the labeling. The manufacturer behind the device must be registered and the device must be listed. Both entities have regulatory obligations, but the labeling entity (your company) is primarily responsible for the accuracy and completeness of the labeling.
• Quality agreements: While not explicitly required by FDA regulation for Class I devices, a quality agreement between the specification developer and the contract manufacturer is strongly recommended. The agreement should define who is responsible for complaint handling, MDR reporting, change control, and regulatory submissions.

Practical tip: If you outsource manufacturing, do not assume the contract manufacturer is handling all regulatory obligations. Both parties have independent registration, listing, and reporting requirements. Verify that your contract manufacturer is registered, has listed your device, and has a complaint-handling process. Many FDA enforcement actions involve situations where neither the specification developer nor the contract manufacturer believed they were responsible for regulatory compliance — and both were found in violation.

International Comparison: EU MDR Class I Equivalents

If you plan to market your device globally, understanding how FDA Class I relates to classification systems in other major markets is essential. The most common comparison is with the European Union's Medical Device Regulation (EU MDR 2017/745).

FDA Class I vs. EU MDR Class I

Factor	FDA Class I	EU MDR Class I
Risk level	Low	Low (but with subcategories)
Subcategories	None	Class I, Class Is (sterile), Class Im (measuring), Class Ir (reusable surgical instruments)
Premarket pathway	510(k) exempt (most) or 510(k)	Self-declaration (standard Class I); Notified Body involvement required for Is, Im, Ir subcategories
Quality system	CGMP/QMSR (many exempt)	ISO 13485 certification required for Is, Im, Ir; quality system required for all
Clinical evidence	Rarely required	Clinical evaluation required for all devices (may be based on literature)
Post-market obligations	MDR reporting, complaint handling	Post-Market Surveillance (PMS), Post-Market Clinical Follow-up (PMCF), Periodic Safety Update Report (PSUR) for Im and Ir
Authorized Representative	US Agent (for foreign manufacturers)	EU Authorized Representative (for non-EU manufacturers)
UDI	Required (simplified for Class I)	Required (EUDAMED database)

Key Differences to Watch

1. Sterile Class I devices: Under FDA, a sterile Class I device is still Class I (though it cannot be GMP-exempt for sterilization-related requirements). Under EU MDR, a sterile Class I device becomes Class Is, requiring Notified Body involvement for sterilization-related aspects of the quality system.

2. Measuring Class I devices: A Class I device with a measuring function (e.g., a graduated syringe, a thermometer) is still Class I under FDA. Under EU MDR, it becomes Class Im, requiring Notified Body involvement for the measurement-related aspects.

3. Reusable surgical instruments: Manual surgical instruments that are reusable are generally Class I under FDA. Under EU MDR, reusable surgical instruments are Class Ir, requiring Notified Body involvement for reprocessing and reuse aspects.

4. Software: Software that might be Class I under FDA classification can be Class IIa or higher under EU MDR, depending on its intended purpose and the significance of the information it provides. Do not assume that a FDA Class I software classification translates to EU MDR Class I.

Other Major Markets

The FDA Class I concept does not translate directly to any other regulatory system. Here is how Class I-equivalent devices are handled in other major markets:

Market	Lowest Risk Class	Premarket Pathway	Quality System	Key Difference from FDA Class I
EU (MDR)	Class I (with Is/Im/Ir subcategories)	Self-declaration (Class I); Notified Body for Is/Im/Ir	ISO 13485 required	Subcategories require third-party involvement
Canada (CMDCAS)	Class I	Establishment License; no premarket review	ISO 13485 required	ISO 13485 certification mandatory for all classes
Japan (PMDA)	Class I (General Medical Devices)	Notification only	QMS compliance required	Simpler notification process than FDA registration
Australia (TGA)	Class I	Inclusion in ARTG (Australian Register)	ISO 13485 evidence required	Must be on the ARTG before marketing
Brazil (ANVISA)	Class I	Notification (cadastro)	GMP inspection by ANVISA	ANVISA may inspect before allowing market access
China (NMPA)	Class I	Filing (bei'an) with local authority	Quality system required	Local provincial authority handles filing, not central NMPA

Practical tip: Never assume a one-to-one mapping between FDA and EU MDR classifications. A device classified as Class I in the US may be Class IIa — or even Class IIb — under EU MDR, particularly if it involves software, sterile presentation, measuring functions, or reusable surgical applications. Always perform an independent classification analysis for each market. If you are planning global distribution, classify your device independently in each target market before building your regulatory strategy.

Regulatory Roadmap: Getting a Class I Device to Market

Here is a step-by-step roadmap for bringing a 510(k)-exempt Class I device to the US market. This covers the most common scenario — a straightforward, GMP-exempt Class I device without software.

Step 1: Classify Your Device

Search the FDA Product Classification Database to identify your device's product code, classification, 510(k) exemption status, and GMP exemption status. Document your classification determination, including the product code, regulation number, and the rationale for why your device fits within the scope of that classification regulation.

Time estimate: 1-2 weeks (including research and documentation)

Step 2: Verify Exemption Status

Confirm that your device qualifies for 510(k) exemption by evaluating the three limitation criteria in 21 CFR .9 (e.g., 862.9, 880.9). Document that your device does not exceed the limitations. If your device uses novel technology, has a new intended use, or has characteristics outside the reasonably foreseeable scope of the generic type, you may need a 510(k).

Time estimate: 1 week

Step 3: Register Your Establishment

Register through the CDRH Portal via FURLS. Pay the annual registration fee ($11,423 for FY2026). If you are a foreign manufacturer, designate a US Agent before registering.

Time estimate: 2-4 weeks (processing time varies)

Step 4: List Your Device

List your device through FURLS, providing the proprietary name, product code, and establishment information for each facility involved in manufacturing, processing, or distribution.

Time estimate: 1-2 weeks (can run concurrently with Step 3)

Step 5: Develop Compliant Labeling

Create labeling that meets 21 CFR Part 801 requirements: statement of identity, manufacturer name and address, adequate directions for use, warnings (if applicable), and UDI (if applicable). Review the specific requirements for your device type — some Class I devices have device-specific labeling requirements in their classification regulations.

Time estimate: 2-4 weeks

Step 6: Implement UDI (If Required)

Determine whether your device requires UDI labeling. If so, obtain a device identifier (DI) from an FDA-accredited issuing agency (GS1, HIBCC, or ICCBBA), create UDI-compliant labels, and submit device information to the FDA's Global Unique Device Identification Database (GUDID).

Time estimate: 2-4 weeks

Step 7: Establish Complaint Handling and MDR Process

Even for GMP-exempt devices, you must have a documented complaint-handling procedure and a process for evaluating complaints for MDR reportability. Define who is responsible, how complaints are logged and evaluated, and how MDR reports are submitted if needed.

Time estimate: 1-2 weeks

Step 8: Begin Commercial Distribution

Once registration, listing, labeling, and complaint-handling processes are in place, you can begin legally marketing your device. No FDA submission or clearance is required for 510(k)-exempt devices.

Total estimated timeline: 6-10 weeks for a straightforward 510(k)-exempt, GMP-exempt Class I device.

If Your Class I Device Requires a 510(k)

Add these additional steps before Step 8:

• Identify a predicate device — Search the 510(k) database for a legally marketed device with the same intended use and similar technological characteristics
• Prepare testing data — Conduct performance testing, biocompatibility testing (if applicable), and any other testing needed to demonstrate substantial equivalence
• Prepare and submit the 510(k) — Use the eSTAR format, pay the user fee ($26,067 standard / $6,517 small business), and submit electronically
• Respond to FDA questions — The FDA may request Additional Information (AI), adding 2-3 months to the timeline
• Receive clearance — Once the FDA issues a Substantially Equivalent (SE) determination, you can begin marketing

Total estimated timeline: 8-14 months for a Class I device requiring 510(k), including submission preparation and FDA review.

Frequently Asked Questions

Do I need FDA approval to sell a Class I medical device?

No. The majority of Class I devices are exempt from premarket notification (510(k)) and do not require PMA approval. However, you must comply with all applicable general controls — including establishment registration, device listing, labeling requirements, and MDR reporting — before marketing the device. "No premarket submission" does not mean "no regulatory obligations."

How do I find out if my Class I device is 510(k) exempt?

Look up your device's product code in the FDA Product Classification Database. The "Submission Type" field will indicate "510(k) Exempt" or "510(k)." You can also check the Medical Device Exemptions 510(k) and GMP Requirements page for a searchable list of exempt device types.

What is the cost of bringing a Class I device to the US market?

The primary regulatory cost is the annual establishment registration fee ($11,423 for FY2026). If your device requires a 510(k), add the user fee ($26,067 standard, $6,517 for small businesses in FY2026). There is no user fee for 510(k)-exempt Class I devices beyond the registration fee. Additional costs include quality system development and maintenance, labeling design, UDI implementation, and any testing needed to support your regulatory claims.

Can a Class I device be sold over the counter (OTC)?

Yes. Many Class I devices are available OTC without a prescription — bandages, thermometers, dental floss, toothbrushes, ice bags, and similar consumer health products are all Class I devices sold directly to consumers. OTC Class I devices must comply with the labeling requirements specific to OTC devices in 21 CFR Part 801, Subpart C, which require adequate directions for lay users.

Does my Class I device need a UDI?

Most Class I devices do need a UDI on their label. However, the UDI requirements for Class I devices are simplified — the production identifier (lot number, serial number, manufacturing date, expiration date) is not required unless the device is provided sterile or has a labeled expiration date. Certain very low-risk Class I devices are exempt from UDI requirements entirely. Check the UDI compliance dates and exemptions in 21 CFR Part 801, Subpart B, and 21 CFR Part 830.

What happens if the FDA inspects my Class I device facility?

FDA conducts inspections of Class I manufacturers, though generally less frequently than for higher-risk device classes. During an inspection, FDA investigators will review your establishment registration and device listing, complaint-handling procedures, MDR reporting records, labeling, manufacturing conditions (for adulteration concerns), and quality system documentation (for non-GMP-exempt devices). If deficiencies are found, the FDA issues a Form 483 listing the observations. Serious or repeated deficiencies can lead to a Warning Letter.

Can I modify a 510(k)-exempt Class I device without notifying the FDA?

You can make modifications to a 510(k)-exempt Class I device without notifying the FDA, as long as the modification does not change the device's intended use, introduce a different fundamental scientific technology, or cause the device to exceed the reasonably foreseeable characteristics of its generic type. If any of these conditions apply, the exemption no longer covers the modified device and a 510(k) may be required.

Are there user fees for Class I devices?

There is no premarket user fee for 510(k)-exempt Class I devices. The only mandatory FDA fee is the annual establishment registration fee ($11,423 for FY2026). If your Class I device requires a 510(k), you must pay the 510(k) user fee ($26,067 standard, $6,517 for qualifying small businesses in FY2026). Small business qualification is based on annual gross revenues and must be verified through the FDA's Small Business Qualification process.

Do I need ISO 13485 certification for a Class I device in the US?

Not specifically. The FDA does not require ISO 13485 certification — it requires compliance with the QMSR (21 CFR Part 820), which now incorporates ISO 13485:2016 by reference. For GMP-exempt Class I devices, the quality system requirements are minimal. However, if you plan to sell in international markets (EU, Canada, Australia, Japan, etc.), ISO 13485 certification is generally required or strongly expected. Many Class I manufacturers obtain ISO 13485 certification voluntarily to streamline global market access.

Can a device be Class I in the US but Class II or higher in the EU?

Yes, and this happens frequently. The FDA and EU MDR use fundamentally different classification rules. The FDA classifies based on risk and the adequacy of general controls. The EU MDR classifies based on a set of 22 classification rules considering invasiveness, duration of contact, active vs. passive, and other factors. A reusable surgical instrument is typically Class I under FDA but Class Ir under EU MDR (requiring Notified Body involvement for reprocessing aspects). Software that is Class I under FDA may be Class IIa or IIb under EU MDR depending on its clinical significance. Always perform an independent classification for each regulatory jurisdiction.

How long does it take to bring a Class I device to the US market?

For a 510(k)-exempt Class I device, there is no premarket review timeline — you can begin marketing as soon as you have completed establishment registration, device listing, labeling, and any applicable quality system requirements. Practically, allow 4-8 weeks for the registration process and UDI implementation. For Class I devices that require a 510(k), add 3-6 months for submission preparation and FDA review (median review time is approximately 100-140 calendar days). Total timeline from project start to commercial distribution is typically 2-3 months for exempt devices and 6-12 months for non-exempt devices, depending on whether testing or additional documentation is needed.

Can I say my Class I device is "FDA approved"?

No. Class I devices that are 510(k) exempt are not "FDA approved" — they are registered and listed with the FDA. Even Class I devices that go through the 510(k) process are "FDA cleared," not "FDA approved." Only Class III devices that undergo the Premarket Approval (PMA) process can use the term "FDA approved." Using "FDA approved" on labeling or marketing materials for a Class I device can constitute misbranding and may trigger FDA enforcement action. The correct terminology for most Class I devices is "registered and listed with the FDA" or "meets all applicable FDA requirements."

What is the difference between a Class I device and a Class I recall?

This is a common source of confusion. "Class I" in the context of device classification means the device is low-risk. "Class I" in the context of recalls means the recall is the most serious — there is a reasonable probability that the product will cause serious adverse health consequences or death. A Class I device (low risk) can be subject to a Class I recall (most serious), a Class II recall, or a Class III recall. The terminology is unrelated. For example, if examination gloves (a Class I device) are contaminated in a way that could cause serious infections, the FDA may classify the recall as a Class I recall (most serious severity) even though the device itself is Class I (lowest risk classification).

Do I need biocompatibility testing for a Class I device?

It depends on the device's patient contact. The FDA's biocompatibility guidance (based on ISO 10993-1) applies to any device that directly or indirectly contacts the body. Many Class I devices — examination gloves, elastic bandages, tongue depressors, wound closure strips — contact patient tissue. For these devices, you should have biocompatibility data or a rationale for why testing is not needed (e.g., the material has a long history of safe use and well-documented biocompatibility). Biocompatibility testing is not a premarket submission requirement for 510(k)-exempt devices, but it is a good manufacturing practice and may be needed for international market submissions. If the FDA inspects your facility and finds that you are using a novel material in a patient-contact device without any biocompatibility assessment, it could be considered an adulteration concern.

What if my device is similar to a Class I device but has a new feature?

Adding a new feature to an existing Class I device type does not automatically change its classification. The key questions are: (1) Does the new feature change the device's intended use? (2) Does the new feature introduce a different fundamental scientific technology? (3) Does the new feature create characteristics that are not reasonably foreseeable within the existing generic device type? If the answer to any of these is yes, the 510(k) exemption may not apply, and you may need to submit a 510(k) or determine if the modified device falls under a different product code with a different classification. If the feature is incremental and within the scope of the existing classification, you can likely continue marketing under the exempt classification — but document your analysis.

Checklist: Class I Device Compliance

Use this checklist to verify that your Class I device program covers the essential regulatory requirements:

• Classification confirmed — Product code identified, device class verified as Class I in the FDA Product Classification Database
• 510(k) exemption verified — Submission type confirmed as "510(k) Exempt" and none of the three limitation criteria apply to your specific device
• GMP exemption status checked — GMP exemption confirmed in the Product Classification Database (if applicable)
• Establishment registered — Annual registration completed through FURLS/CDRH Portal, fee paid
• US Agent designated (foreign manufacturers only) — Agent located in the United States
• Device listed — All commercially distributed devices listed through FURLS with correct product codes
• Labeling compliant — Statement of identity, manufacturer name/address, adequate directions for use, warnings, and UDI (if applicable) all present
• Complaint-handling system in place — Documented procedure for receiving, logging, and evaluating complaints
• MDR evaluation process established — Process for determining whether complaints represent reportable events under 21 CFR Part 803
• Design controls implemented (if applicable) — Required for devices with software and the six named device types
• Quality system documentation (if not GMP-exempt) — QMSR/ISO 13485 compliant quality system
• Correction/removal reporting process — Procedure for reporting corrections and removals under 21 CFR Part 806
• International classification analysis (if applicable) — Independent classification performed for each non-US target market

Key Takeaways

1. Class I does not mean unregulated. Every Class I device is subject to general controls, including establishment registration, device listing, labeling, and MDR reporting. Non-compliance carries the same enforcement consequences as for any other device class.

2. Most Class I devices are 510(k) exempt — but verify yours. Approximately 95% of Class I device types do not require a premarket submission. But 510(k) exemption has limitations: if your device uses a novel technology or different intended use, the exemption may not apply.

3. GMP exemption is not a free pass. Even GMP-exempt Class I devices must maintain complaint files and comply with MDR reporting. A manufacturer with no complaint-handling system is violating federal law.

4. Design controls apply to Class I devices with software. If your device incorporates computer software of any kind, design controls under the QMSR are mandatory — regardless of the device's overall Class I classification.

5. Registration and listing are prerequisites to marketing. You cannot legally distribute a Class I device in the United States without registering your establishment and listing your device with the FDA. Foreign manufacturers must also designate a US Agent.

6. International classification does not map one-to-one. A device classified as FDA Class I may be Class Is, Im, Ir, IIa, or even IIb under EU MDR. Always perform an independent classification analysis for each market.

7. Labeling violations are the most common Class I compliance issue. Misbranding — missing intended use statements, overly broad claims, missing manufacturer identification — is a frequent finding in FDA inspections and import reviews of Class I devices.

8. The QMSR transition affects all manufacturers. As of February 2, 2026, the FDA expects compliance with ISO 13485:2016 (incorporated by reference) rather than the legacy prescriptive QSR requirements. If you are a Class I manufacturer with quality system obligations, you must update your documentation to align with the QMSR.

9. Plan for international markets early. If global distribution is in your plans, design your quality system and documentation to satisfy the most demanding market from the start. Retrofitting design controls, clinical evaluations, and post-market surveillance processes later is always more expensive than building them in initially.

10. Document everything. Even if your device is exempt from most regulatory requirements, maintain records of your classification determination, exemption analysis, complaint handling, and MDR evaluations. These records are your defense in an FDA inspection, a Customs detention, or a product liability claim.