Quick Contact
510K Submission and FDA Clearance Process
A 510k submission is made to the U.S. Food and Drug Administration (FDA) to demonstrate that a medical device is substantially equivalent in terms of safety and effectiveness to a legally marketed predicate device that does not require Premarket Approval (PMA).
FDA 510k Clearance is required to sell a medical device in the U.S. if it isn’t exempt and isn’t already legally on the market. Significant changes to an existing device, anything that could affect safety or effectiveness can also trigger a new submission. Preparing one involves gathering technical documentation, completing the required testing, and satisfying FDA’s regulatory requirements.
Preparing a 510k submission technical file usually takes 4 to 5 months that covers device testing, documentation, clinical data consolidation. After submission, FDA review runs another 6 months, much of it back-and-forth on review queries. Bringing in an experienced 510k consulting team early tends to reduce the chances of a deficient submission that stalls the clock.
The I3CGLOBAL team plans the 510k submission strategy, manages regulatory decisions, and works to reduce Refuse to Accept (RTA) deficiencies, additional information requests, and major review comments. Foreign manufacturers are also recommended to appoint our U.S. agent to manage official FDA communications.
Note: The service of the US FDA Agent is different from the US Agent service for FDA Establishment Registration.
We offer the best FDA 510k Submission Services with proper Guidance and Solutions to worldwide manufacturers and specification developers. Our 510k submission services are time-bound, economical and match prices. So partner with us and experience the difference firsthand.
The 3 Stage 510k Submission Strategy
510k Pre-Submission (Q-Sub) Meeting – What You Need to Know
The FDA’s Q-Sub program gives medical device manufacturers a chance to get FDA feedback before submitting a formal 510(k). You can raise questions on test selection, biocompatibility, safety and performance protocols, substantial equivalence, regulatory pathway, or any other technical issues specific to your device.
The request itself needs to include a device description, regulatory history, and the specific questions you want answered. FDA screens the submission within 15 days to confirm it’s the right Q-Sub type and that nothing’s missing. If accepted, expect a meeting roughly 70 to 75 days out — about 10 weeks after you submit. Sessions run an hour and can be held by teleconference or in person. FDA typically sends written feedback three days ahead of the meeting, and that document becomes the official record of their response.
Everything you need to know about the FDA 510k submission — straight to your inbox in minutes
Why a Pre-Submission meeting matters before your 510k Submission
A Pre-Submission (Q-Sub) isn’t required before a 510k submission. Done well, a Q-Sub is how you get to know FDA’s position on specific questions you asked related to testing protocols, applicable standards, substantial equivalence, regulatory strategy before committing money to bench testing, animal studies, or clinical studies. The order matters. Manufacturers who test first and ask questions later sometimes find out they ran the wrong study.
Gaps found at the Pre-Sub stage are fixable before they become expensive. The same gaps showing up during formal 510k review become deficiencies and additional information requests
The feedback is non-binding. That caveat gets cited often enough that it’s worth addressing directly; the FDA publicly states it intends to honor pre-submission feedback, and reversals are rare. The real variable is what you bring to the Q-Sub. Narrow, well-supported questions yield usable answers. Broad or vague ones don’t yield results you’ve waited 10 weeks.
510K Submission Process & FDA Review Timeline
The FDA 510k submission process runs 10–14 months from preparation to clearance. Preparation takes 4–5 months, followed by FDA acceptance review, substantive review, and interactive review stages. Around 30% of submissions receive an RTA hold, resetting the clock. A complete, well-prepared submission is the fastest route to 510k clearance.
510k Submission File Preparation
Gather documentation & complete required testing
- Device description & intended use
- Substantial equivalence analysis
- Performance & bench testing
- Biocompatibility (ISO 10993)
- Risk management file
- Clinical data (if required)
- Labeling & IFU
eSTAR submission to FDA
File via CDRH portal · pay 510k review fee
- Required for all 510k submissions since Oct 2023
- eSTAR electronic template
- Pay Standard or Small business file review fee as per FY notice
Acceptance review (RTA check)
FDA screens submission for completeness
- 50+ point RTA checklist
- All required sections must be present
- ~30% of submissions receive an RTA hold
RTA hold — deficiencies found
Fix & resubmit within 180 days
- Missing test data
- Incomplete device description
- Weak substantial equivalence
Accepted for substantive review
Review clock officially starts
- K-number assigned
- Lead reviewer allocated
- Track progress on CDRH portal
Substantive review
Lead reviewer evaluates safety & substantial equivalence
- Substantive interaction by day 60
- Biocompatibility gaps add ~25 days
- Software & cybersecurity issues add ~18 days
Interactive review
Respond to FDA queries & additional information requests
- Resolve outstanding deficiencies
- Additional information requests pause the review clock
- 180 days to respond to any hold letter
FDA decision
Substantially equivalent (SE) or not substantially equivalent (NSE)
- MDUFA V target: 90 FDA days
- Actual average 2025: 140–175 days
- 70–80% of submissions exceed the 90-day target
510k clearance granted
Device can be marketed in USA
- 510k clearance letter issued
- Listed in FDA 510k database
- Complete Estd Reg and device Listing to market in USA
Not substantially equivalent
Appeal or explore alternative pathway
- Request De Novo classification
- Resubmit with stronger data
- Consider PMA if Class III
eSTAR submissions average ~108 days in FDA review. Pre-submission add ~90 days.
510K Submission Phase-Wise Activities & Responsibilities
The FDA 510k submission process spans multiple regulatory, technical, and testing phases each with its own documentation requirements, timelines, and responsibilities divided between the manufacturer and I3CGLOBAL.
The matrix below covers the major stages: regulatory assessment, predicate device identification, testing coordination, technical documentation, FDA submission, review support, and response management. Each phase shows estimated duration and whether the activity is owned by the client, I3CGLOBAL, or both teams jointly. Device type, testing complexity, and manufacturer setup all affect how this plays out in practice. Treat this as a representative workflow — actual timelines and responsibilities will vary.
| Phase | Stage | Activity | Responsibility | Timeline |
|---|---|---|---|---|
| PHASE I | 1 | Select the Device and models for FDA 510k Submission | CLIENT | 20 Days |
| 2 | Identify Predicate Device with the same indication and technology | CLIENT + I3C | ||
| 3 | If NOT substantially equivalent, follow the PMA route or, if substantially equivalent, follow the 510k route | CLIENT + I3C | ||
| 4 | Appoint I3CGLOBAL as Technical Consultants and US Agent | CLIENT | ||
| PHASE II | 5 | Identify Device Code and Regulation Number along with verification of Predicate Device, indication & technology. | I3C | 90 Days |
| 6 | Identify the device Class and guidance document | I3C | ||
| 7 | Biological evaluation and test requirement identification in line with the predicate device | I3C | ||
| 8 | Samples send to the Laboratory | CLIENT | ||
| 9 | Evaluation of equivalent device compilation | I3C | ||
| 10 | Drafting of 510k file in line with available FDA guidance document. | I3C | ||
| 11 | Review of Risk analysis, Equivalent device data, Biocompatibility Test/Safety test protocols | CLIENT + I3C | ||
| 12 | Review of Labels, User Manual/IFU, Shelf-life records/lifetime calculation, and pre-clinical study evidence | CLIENT + I3C | ||
| 13 | Pre FDA 510k Submission | CLIENT + I3C | ||
| PHASE III | 14 | Compilation of 510k file by incorporating the pre-submission comments | I3C | 90 Days |
| 15 | Compilation of Pre-clinical and Biocompatibility and Safety testing | I3C | ||
| 16 | Compilation and release of the final draft | I3C | ||
| 17 | Review FDA 510k submission file | I3C | ||
| PHASE IV | 18 | US Agent Appointment | CLIENT | 20 Days |
| 19 | Review payment | CLIENT | ||
| 20 | eSTAR submission of file to FDA | I3C | ||
| 21 | Receipt of acknowledgement | CLIENT | ||
| 22 | Wait for the review comments | CLIENT | 90 Days | |
| PHASE V | 23 | Modify the FDA 510k submission file and provide additional supporting documentary evidence as per FDA review comments | CLIENT + I3C | 60 Days |
| 24 | Re-submission | I3C | 10 Days | |
| 25 | Wait for the review comments or FDA 510k clearance letter | CLIENT | 90 Days | |
Professional 510K Submission services for global medical device, IVD & SAMD manufacturers. FDA experts. Fixed Fee. Request a quote today.
Frequently Asked Questions about 510k Submission
Where and How to Submit a Q-Submission (Pre-Submission)
Q-Submissions are submitted electronically through the FDA’s CDRH Customer Collaboration Portal (NextGen). There is no user fee for a Q-Submission unlike a formal 510k submission, it costs nothing to file.
Your request should be submitted as a single PDF package including a cover letter, device description, regulatory history, and your specific questions for FDA. Once submitted, FDA screens the request within 15 days to confirm it qualifies as a Q-Submission and that all required information is present. If accepted, a meeting is typically scheduled around 70–75 days from submission.
How Should I Prepare My FDA 510k Submission?
Preparing a 510k submission starts with identifying the right guidance documents for your device type, these define what FDA expects to see and set the baseline for your testing strategy. From there, preparation involves four broad areas: technical documentation, manufacturing records, device testing, and regulatory strategy.
Technical documentation covers the device description, substantial equivalence argument, risk management file, labeling, and IFU. Manufacturing records need to demonstrate compliance with FDA’s Quality Management System Regulation (QMSR / 21 CFR Part 820). Testing requirements vary by device but typically include biocompatibility, performance, electrical safety, and sterility where applicable.
Working with an experienced 510k regulatory consultant like I3CGLOBAL helps ensure the submission is complete, structured correctly, and aligned with current FDA expectations before it’s filed.
Can a applicant withdraw a FDA 510k submission?
Yes, an applicant can withdraw a FDA 510k at any time before the FDA makes a final determination. The review fee paid should collect back in 60 days.
What happens if my 510k submission is not accepted?
Any specific restrictions on the file size for a 510k submission to the FDA?
There are no specific restrictions on the file size for a submission to the FDA, but there are practical considerations to keep in mind.
All submission must be made electronically through the FDA’s Electronic Submission Gateway (ESG). While there isn’t a strict file size limit, large files can take longer to upload, and there may be technical challenges related to very large submissions.
Any specific file structure for a 510k submission?
The submission should be well-organized, typically divided into multiple files or sections. This not only makes it easier to upload but also helps the reviewers navigate the document efficiently. Common practice is to break down the submission into different sections.
Provide practical tips for 510k submission File Upload
Page titled 510k submission was reviewed and approved by Sara on 23rd may 2026 and approved by Binoy Joese.