FDA U.S. Agent for Foreign Medical Device Manufacturers: Complete Guide

Published by US Compliance Agent LLC

If you manufacture medical devices outside the United States and sell them into the U.S. market, you are required to register your establishment with the FDA and designate a U.S. Agent. This requirement has been in place for years under 21 CFR Part 807, and it applies to every foreign medical device establishment — regardless of the risk classification of your devices.

This guide covers who needs an FDA U.S. Agent for medical devices, what the agent does, how the requirement works, and how to get one in place efficiently.

The Regulatory Basis: 21 CFR 807

The FDA requires all medical device establishments — both domestic and foreign — to register with the agency annually. Foreign establishments have an additional requirement: they must designate a U.S. Agent as part of their registration.

This requirement is established under 21 CFR Part 807 (Establishment Registration and Device Listing). The U.S. Agent requirement specifically applies to foreign establishments, defined as any facility that manufactures, prepares, propagates, compounds, assembles, or processes medical devices intended for distribution in the United States but is located outside the country.

Who Needs an FDA Medical Device U.S. Agent?

The requirement applies broadly. If you are a foreign company and any of the following describe your operation, you need a U.S. Agent:

Medical device manufacturers. If you manufacture finished medical devices that are sold in the United States — whether Class I, Class II, or Class III — your facility must be registered with FDA and you must have a U.S. Agent.

Contract manufacturers. If you manufacture medical devices under contract for a U.S. company (OEM/ODM manufacturing), your foreign facility still needs its own FDA registration and U.S. Agent, even though the U.S. company may also be registered.

Component and subassembly manufacturers. In certain cases, manufacturers of components, parts, or subassemblies used in finished medical devices are also subject to establishment registration requirements.

Repackers, relabelers, and reprocessors. If your foreign facility repacks, relabels, or reprocesses medical devices for U.S. distribution, the registration requirement applies.

Specification developers. Companies that develop specifications for devices manufactured by others may also be required to register, depending on their role in the manufacturing process.

The key factor is whether your establishment's activities result in medical devices being distributed in the United States. If the answer is yes, you almost certainly need to be registered — and if you are located outside the U.S., you need a U.S. Agent.

What Does the FDA U.S. Agent Do?

The U.S. Agent for a foreign medical device establishment serves as the official communication link between the establishment and the FDA. The responsibilities include:

Receiving FDA correspondence. The U.S. Agent receives all official communications from FDA directed to the foreign establishment. This includes registration verification letters, inspection notices, warning letters, import alerts, and general inquiries.

Forwarding communications to the establishment. When FDA contacts the U.S. Agent, the agent must relay the communication to the foreign establishment's designated contact without delay. Timeliness is especially important for inspection notices, which may arrive with limited advance warning.

Assisting FDA with communication. The agent serves as an intermediary to help facilitate correspondence between FDA and the foreign establishment, particularly when language barriers or time zone differences create communication challenges.

Providing a U.S. contact point. The agent provides a physical U.S. address and phone number where FDA can direct correspondence and inquiries during U.S. business hours.

The U.S. Agent does not prepare 510(k) submissions, manage quality systems, conduct device testing, prepare establishment registrations, or provide regulatory strategy consulting. Those functions require specialized regulatory affairs expertise and are separate from the agent's communication role.

FDA Registration and Listing: How It Works

Understanding where the U.S. Agent fits requires a basic overview of the FDA registration process for medical device establishments.

Annual registration. Medical device establishments must register with FDA annually. Registration is done electronically through FDA's Unified Registration and Listing System (FURLS). The registration period typically runs from October 1 through December 31 each year.

Device listing. In addition to registering the establishment, companies must list the medical devices they manufacture, with information about the device type, classification, and other details.

Annual registration fee. FDA charges an annual establishment registration fee. For fiscal year 2026, this fee is published by FDA and applies to both domestic and foreign establishments.

U.S. Agent designation. During the registration process, foreign establishments are required to enter their U.S. Agent's information — name, address, phone number, and email. This field is required, and the registration cannot be completed without it.

Why Timely Communication Matters for Medical Devices

The medical device sector operates under particularly stringent regulatory expectations, which makes the U.S. Agent's communication role especially important.

FDA inspections. FDA conducts inspections of foreign medical device establishments. While routine inspections are typically scheduled in advance, there are situations where FDA may need to contact your facility on shorter notice. If your U.S. Agent is unresponsive or your contact information is outdated, this creates an immediate red flag.

Warning letters and compliance actions. If FDA identifies compliance issues with your products or manufacturing practices, they will communicate through your U.S. Agent. Delayed receipt of a warning letter can compress your response timeline and escalate the situation.

Import alerts. If your products are subject to an import alert — meaning they are being detained at the border — FDA correspondence about the alert will go through your U.S. Agent. Quick awareness is critical to resolving import holds.

Medical Device Reports (MDRs). While adverse event reporting obligations generally fall on the manufacturer and the initial reporter, FDA may direct follow-up inquiries to your establishment through the U.S. Agent.

Recalls and field corrections. If a safety issue arises with one of your devices, FDA will need to communicate with your establishment about recall procedures, field corrections, and corrective actions. Your U.S. Agent is the first point of contact for these urgent communications.

In all of these scenarios, the speed and reliability of your U.S. Agent's communication forwarding directly affects your company's ability to respond appropriately and maintain compliance.

Choosing a U.S. Agent for Your Medical Device Establishment

When selecting a U.S. Agent for your medical device establishment, consider the following:

Responsiveness. FDA communications about medical devices can be time-sensitive. Your agent should forward all correspondence to you on the same day it is received, with no exceptions.

Reliability. The agent must be consistently available during U.S. business hours. If FDA calls your agent and gets voicemail that is never returned, this reflects poorly on your establishment and can escalate compliance issues.

Clear scope of service. Make sure you understand exactly what the agent service includes and does not include. A U.S. Agent handles communication — they do not handle your registration submission, quality system compliance, or regulatory strategy.

Multi-agency capability. If your company also manufactures products that fall under FCC regulation (wireless medical devices), MoCRA (cosmetics with drug claims), or EPA/TSCA (chemical components), a U.S. Agent provider that covers multiple agencies can simplify your compliance administration.

Pricing transparency. Some providers bundle the agent service with consulting packages that you may not need. If you have your own regulatory affairs team or work with a separate RA consultant, look for a provider that offers the U.S. Agent designation as a standalone service at a clear price point.

Common Questions

How often do I need to renew my U.S. Agent designation?

Your U.S. Agent information is confirmed during your annual establishment registration. If your agent changes during the year, update your FDA records promptly. Most agent services operate on an annual subscription that aligns with the registration cycle.

Can my U.S. distributor serve as my U.S. Agent?

Yes. Any U.S.-based person or company can serve as your U.S. Agent. Some manufacturers use their U.S. distributor or importer. Others prefer a dedicated third-party service to maintain separation between commercial and regulatory functions.

What happens if my U.S. Agent designation lapses?

If you fail to maintain a valid U.S. Agent, your FDA establishment registration may be flagged as incomplete. This can lead to import delays, compliance inquiries, and potential enforcement action.

Do I need a separate U.S. Agent for each device I manufacture?

No. The U.S. Agent is designated per establishment, not per device. One agent covers your entire facility registration, regardless of how many devices you manufacture.

Is the U.S. Agent the same as an Initial Importer?

No. An Initial Importer is the U.S.-based entity that first imports a medical device into the United States. The Initial Importer has their own regulatory obligations, including adverse event reporting. The U.S. Agent is a separate designation focused on facilitating FDA communication with the foreign establishment.

Can a U.S. Agent help with 510(k) submissions?

A U.S. Agent's role is limited to receiving and forwarding FDA correspondence. If you need help with 510(k) premarket submissions, you should work with a regulatory affairs consultant or service provider that specializes in medical device submissions. These are separate functions.

Getting Started

If your foreign medical device establishment needs a U.S. Agent for FDA registration, US Compliance Agent can get you set up quickly. Our FDA U.S. Agent service includes a verified U.S. address, phone number, same-day correspondence forwarding, and 12-month coverage.

We also provide U.S. Agent services for FCC, MoCRA cosmetics, EPA/TSCA, and NHTSA/DOT — so if your product portfolio spans multiple regulatory categories, we can handle all of your designations.

Visit our FDA U.S. Agent service page or pricing page for details.

US Compliance Agent LLC is a private company. We are not affiliated with, endorsed by, or connected to the FDA or any U.S. government agency. We do not provide legal advice, regulatory consulting, product testing, or certification services.